Educational Instruments

We provide our clients a wide range of educational electronic instruments that are fabricated as per the client’s requirements and are available with varied specifications. Our range is widely used in different industries.

Bosstek Lx-1010b Lux Meter

BOSSTEK LX-1010B LUX METER

Portable Type. Range 0 - 50,000 Lux (3 ranges ). 3.½ Digit LCD Display.

Sampling Time : 0.4Sec. Data Hold.

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Seprating Funnel Hollo & Rota Flow Stop Cork

We offer a wide range of Seprating Funnel Hollo & Rota Flow Stop Cork to our clients. It makes sure that no solids get through, or clog the funnel. This funnel is designed with fixed perforated plate to ensure quality performance.

50 ml - 120-00

125 ml - 140-00

250 ml - 190-00

500 ml - 275-00

1000 ml- 430-00

Seprating Funnel Hollo & Rota Flow Stop Cork

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Mercury Vapour Indicator

Mercury Vapour Indicator for Continuous Detection Revolutionary dual beam UV absorption technology means MVI does not saturate or need regenerating between readings.

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Compression Testing Machine (Hydraulic)

200/Tones- hydraulic electrically-cum-hand operated, with 3 pressure gauges 0-200 tones, 0-100 tones, and 0-50 tones capacity complete with Flexure Test Attachment. MODEL DM/TG. Speed Control: The machine is fitted with a hand wheel control which enables the rate of application of load to be varied. The machine is equipped with facilities for hand pumping in case of power failure. Electrical :This automatic closing of the machine shall protect the machine for overload resulting in ultimate damage. Electrical Relays are also incorporated in the electrical pumping unit, so that in case of breakdown of power supply the motor will not restart unless the starting switch is operated.The machine is also provided with a Hand-operated Pumping Unit, so that the unit can be operated Manually

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Aggregate Impact Tester

It is for the determination of the aggregate impact value and has been designed in accordance with IS-2386 (Part IV). The study construction consists of a base and support columns to form a rigid frame work around the quick release trigger mechanism to ensure an effective free fall of the hammer during test.

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Concrete Test Hammer

This is intended for non-destructive testing of the quality of concrete in finished structures. In testing, the rebound number is measured, which is dependent on the strength of the mortar (concrete with coarse particles) close to the surface. Since the strength of the mortar as a rule determines the strength of the concrete, the rebound number gives an indication for the strength of the concrete. The results obtained are ±15% of the actual compressive strength. As the test does not destroy the specimen, the curing process continuing after setting of concrete the be followed up accurately.

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Le-Chatelier Mould

IS-4031.With two glass plates and lead a transparent disc is screwed. The division of the scale on the rod weights. For indicating soundness of cement and limes. A brass cylinder mould split down one side and provided with two parallel indication arms.

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Cylinder Moulds

Used to cast cylindrical cement concrete specimens for compressive strength tests. These moulds are made of cast Iron. They can be easily split into two parts. The internal diameter is finished to ±0.2 mm and height within ±1 mm. Supplied complete with a base plate machined flat within ±0.02 mm.

Size: 100 mm dia x 200 mm high, Cast Iron.
150 mm dia x 300 mm high, Cast Iron.
300 mm dia x 600 mm high, Cast Iron.

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Length Comparator

IS-4031.For measuring changes in the length by a dial gauge graduated to 0.01 mm. The gauge is mounted rigidly in a measuring frame and has a recessed and which can be located upon a 6.5 mm diameter ball or other reference point in the specimen. Complete with a stainless steel standardization bar with 6.5 diameter balls mounted in the ends.

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Slump Test Apparatus

Confirming to ISS-7320. This apparatus used for the determination of workability of concrete where nominal size of aggregate does not exceed 38 mm. The apparatus comprises of a slump cone with foot pieces fitted on a base with wing bolts. A swivel carrying handle fitted with the base also serves as a datum for measuring the slump, when moved into vertical position perpendicular to the base. A graduated tamping rod is used both for compacting the specimen as well as measuring the slump of concrete.

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Length Gauge (Elongation Index)

IS : 2386 (Part I)For determining the elongation index of coarse aggregate. It consists of a steel plate on which 8 steel pins are vertically mounted with specified distance in between. This assembly is mounted on a hardwood base.Tile Flexure Strength Tester. IS : 654-1962. For the determination of breaking load of clay roofing tiles.The equipment consists of two bearing rollers and one loading roller all 40 mm dia. The centers of bearing rollers can be set at 250 mm or 270 mm. The loading is done through a double lever loading system.Maximum capacity of the machine is 2 KN. Lever ratio is 1:12. Supplied complete with 20 kg lead shot.

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Compaction Factor Apparatus

For determination the workability of concrete provided the nominal maximum size of the aggregate does not exceed 38 mm. This is designed primarily for use in the laboratory but in suitable circumstances, it may also be used in the field. This test is more precise and sensitive and is particularly useful to concrete mixes of very low workability such as are normally used when concrete is to be compacted by vibration. Consists of two hoppers and a cylinder mounted on a rigid frame. The inside surfaces are machined smooth. The whole apparatus is furnished in hammertone spray. Complete with two trowels and a tamping rod.

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Vee Bee Consistometer

Consists of a vibrator table resting upon elastic supports, metal post, sheet metal cone open at both ends, and a standard iron rod. The table is enquipped with an elecrically operated vibrometer mounted under it by an electric motor, both double ended shaft, working on 220 volts, single phase A.C. supply.
The steel cone is 30 cm high, with dia at the bottom 20 cm and at top 10 cm. A swivel arm holder is fixed to the base, into which is telescoped another swievel arm with funnel and guide sleeve. A graduated rod is fixed on to the swievel arm and at the end of the graduated armecords the slump of the concrete cone, and the volume of concrete cone after vibration of cone in the pot. Complete with electrical accessories.

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Cement Autoclave

It is high pressure autoclave designed especially for conducting acceleraed soundness tests on Cement or the autoclave expansion tests. It is mounted in a sturdy supporting frame, and enclosed in a heat- insulated / metal housing which is attractively finished in hammertone paint. The top has a pressure regulator safety valve and pressure gauge. The unit attached to the side of the housing has power switches and pilot lights for controlling the electric heating unit.

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Vibration Machine

Vibrator is mounted over coiled springs. Vibrations are by means of a revolvingshaft with an eccentric. Frequency 12000±400 vibration per minute. Centre of gravity of the vibrator, including the cube and mould is either at the centre of the eccentric shaft or within 25 mm below it. Easy assembling and dismantling of cube mould. Provided with belt guard and a time switch. Suitable for operation in 230 volts, 50 cycles, single phase A.C. Supply. Vibration Machine is supplied complete with one cube mould.

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Briquette Mould

For making cement briquette for tensile strength on cement complete with base plate.

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Los Angeles Abrasion Testing Machine

For determination of resistance to wear of coarse aggregate by abrasion. A rolled steel drum totally closed except for removable dust-tight cover is connected to stub shaft and mounted on steel frame to allow rotation about its axis in a horizontal plane. The drum is rotated by one h.p. electric motor. A heavy duty speed reducer coverts the motor speed to required drum speed of 30 to 33 r.p.m. Inside the drum is provided a steel shelf which can be easily replaced when worm out due to repeated abrasion tests. Supplied with 12 abrasive charges 1 7/8" dia and Revolution Counter fitted to the rotating shaft.

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Develattrition Testing Machine

For determination of resistance to wear by attrition. Two iron cylinders 77/8" dia 133/8" long with dust and water-tight covers, mounted on a shaft with their axis inclined at 30 deg. to the axis of rotation of the shaft. Rotation speed is 30-33 r.p.m. Driven by 1 h.p. three phase 440 volts, A.C. Electric motor.

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Jaw Crusher (Laboratory Type)

The crusher has maganese steel jaws. The opening of the jaws is adjustable from 20 mm to 6 mm. The capacity is 200 kgs. per hour. The crusher is made of cast steel. The jaws have forward and downward strokes with sufficient rocking action to throw crushed material down to the jaws. A hopper is provided at the top for pouring material. The crusher is supplied complete with 3 h.p. electric moror, triple V-belt pully drive and mounting frame.

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Density Basket

For the determination of specific gravity and water absorption of aggregate. It is made of G.I. wire-mesh approx. 20 cm dia x 20 cm high. Complete with handle.

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Needle Vibrator

Vibrator internal, laboratory type. Use in Vibrating concrete test cylinders and beams. It is widely used in making concrete products in experimental work and in small scale construction projects. The vibrator is electrically driven, fitted with 350 mm long x 25 mm dia vibrating pin having a bullet type nose. Approx. three ft. long flexible shaft. Vibrating speed is 10000 per minute.

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Tile Abrasion Testing Machine

The tile sample is pressed under a specified load against a grinding path, strewn evenly with an abrasive power revolving at the rate of 30±1 revolutions per minute. The wear of the tile is measured using a thickness gauge.

The abrasion testing machine consists of a replaceable grinding path fitted on a disc rotating about its vertical axis. The rotating disc and the grinding path are enclosed by a circular tray. A bracket holds the specimen. The loading is by a counter balanced lever. A funnel is provided to facilitate charging the grinding path with a brass sive power.Supplied complete with automatic pre-set revolution counter and one 7.5 kg. weight but without abrassive power and thickness gauge. Suitable for operation on 415 volts, 50 cycles, 3 phase A.C.supply. With dial gauge 0.01 x 25 mm

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Air Entertainment Meter

For concrete containing nominal maximum size of aggregate of 38 mm. The apparatus consists of a measuring bowl of 0.005 cm capacity. A flanged conical cover assembly fits over the bowl and can be sealed with clamps keeping a rubber gasket in between. A water inlet valve with a spray tube and an air bleed valve are fitted on the conical cover assembly. A pressure gauge is mounted on the top of the stand pipe. A hand pump is provided for the application of pressure

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Bitumen Extractor

-ASTM D-2172.AASHO T-58, T-164. For the determination of Bitumen percentage in Bitumenous mixtures. It has a removable precision machined aluminium rotor bowl mounted on a vertical shaft. A filter paper disc is pressed in between the rotor bowl and cover plate by tightening a knurled nut. The bowl assembly is enclosed in a housing mounted on a cast body. The manually operated unit can be used both in the field and laboratory. In the manually operated unit, the gears are enclosed in a cast body. The solvent may be introduced during tests through a cup on the housing cover.

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Marshall Stability Test Apparatus

For the measurement of the resistance to plastic flow of cylindrical specimens of bituminous pouring mixture loaded on the lateral surface. This is for use with hot mixture containing asphalt or tar and aggregate up to 25 mm maximum size.

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Ductility Testing Machine

Determining of asphalt, cut bitumen and blown type bitumen.It consists of a bath thermostatically controlled with inlet and outlet taps. Fixed and movable brackets are so positioned that specimen is submerged in water throughout. The rates of pull of 50 mm/min. and 10 mm/min. are incorporated. A clutch arrangement is made to stop the movement of the movable bracket when rupture of the specimen is noticed. Suitable for operation on 230 volts, 50 cycles, single phase, A.C. supply. Complete with three moulds and plates supplied mounted on the apparatus but without thermometer.

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Ring And Ball Apparatus

For determining the temperature at which a sample of bitumenous material drops specified distance when heated under prescribed conditions and loaded by 3/8 inch diameter steel ball. Two simultaneous test can be carried out. The equipment is supplied complete with beaker but without thermometer.

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Cone Penetro Meter

For determining the liquid limit of soils. This is specially useful to obtain valuable and accurate results for those soils (alluvial) which are sandy and for which the liquid limit falls below 25 or so and plasticity index between 4 and 7, but is also applicable for a wide range of soils. It meets the requirements of IS-2720 Part V and consists of a cone fixed to a bearing rod. A graduated scale is fixed to the bracket. Complete with container.

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Field Density Test Apparatus (Core Cutter Method)

IS-2720 (Part XXIX) Consists of a cylindrical core cutter of a seamless tube, 10 cm internal diameter, and 130 mm long, a dolly with lip to enable it to be located on the core cutter, and a rammer with steel rod.

Field Density Test Apparatus (Core Cutter Method)

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Liquid Limit Device

Meets the requirements of IS 2720 Part V and consists of a brass bowl held on an a rubber of standard hardness by can action. Rubber feet are provided to eliminate rocking while operating. Complete with one ASTM Grooving tool and height gauge. LIQUID LIMIT DEVICE With a counter same as above, but fitted with a counter to register the number of blows. LIQUID LIMIT DEVICE Motorized approximately. Same as above, but fitted with a motor geared down to give 120 rpm

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Proctor Compaction Apparatus

IS-2720 (Part VII) It consist of a compaction Mould 100 mm DIA. X 127.3 mm height X 1000 cc volume complete with collar and base plate all steel construction.

Rammer 2.6 kg X 310 mm controlled fall through a guide tube. Rammer 4.89 kg X 450 mm controlled fall for heavy compaction test as per IS-2720 Part VIII.

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Proving Ring

This is for determining the bearing capacity of sub-grade soils or for compaction control and meets the requirement of ASTM D-420. Consists of a sturdy handle under which is fixed a sensitive proving ring. An extension piece is fixed on to the bottom of the proving ring and carries the detachable penetration cone at its tip. Proving ring capacity is 130 kg and the .002 mm dial indicator is provided, indicates the penetration load applied with a sensitivity of approx. 1/2 kg. division. A calibration chart is provided for the proving ring. Instrument is complete in wooden carrying case.

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Vicat Apparatus

The procedure, as recommended in various standards, is for determining the quantity of water required to produce a cement paste of standard consistency. The standard consistency is attained when the 10 mm plunger of the apparatus penetrates the material to a pre-determined depth under free-fall. A new sample is prepared and tested with initial and final needles in accordance with the procedure described in various specifications. Vicat Apparatus consists of a frame bearing a movable rod with a cap at top and a vicat mould in the form of the frustum of a cone, (80+5)/70 + 5mm dia at the base,(70mm+5mm) /60 mm at the top and 40 mm high, and with a glass base plate of minimum 2.5 mm thickness with various models of Vicat apparatus

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Pycnometer

Comprises a 2 ibs. glass jar with metal cone, locking ring and rubber seal.

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Rapid Moisture Meter - 25 Or 50

For quick determination of moisture content of materials in powder from i.e. soil sand, coal, pottery, ganister, cement etc. A weighed quantity of the substance under test is placed in the body of the tester together with a measured quantity of absorbent and the tester is then sealed and shaken vigorously thereby bringing the sample and the absorbent into intimate contact. The pressure of gas liberated by interaction of moisture in the sample and absorbent actuates the gauge which is directly graduated in percentage moisture on the wet weight basis. A conversion chart is provided for converting percentage moisture content on the wet weight basis to percentage moisture on the dry weight basis.The unit consists of a pressure vessel with clamp for sealing cap rubber sealing gasket, dial gauge calibrated in percentage moisture content to 25 % on the wet weight basis, counter poised balance for weighing sample, scoop for measuring absorbent, bottle of absorbent, cleaning brush. Complete in wooden carrying case with handle.The Unit can be used to determine percentage moisture contents on the wet weight basis up to 25% which is equal to 33.3% moisture content on the dry weight basis.

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Plate Bearing Ratio Test Apparatus

Unit consists of Steel Bearing Plates 25 mm thick of 75, 60, 45 and 30 cm dia Plain and Chequrred. Bridge support complete with two dial guage clamps.Hydraulic Jack 50/tonnes capacity complete with 2 meter steel pipe connection with separate pump and pressure guage.Ball and socket for the jack.Load Truss complete with four soil anchors and working collors. Capacity 20 and 30 ton.Dial guage .01 mm least count.

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Direct Shear Apparatus

The apparatus comprises of the following :-

Loading Unit:- Vertical load, capacity 8 kg/sq. cm. Load is applied either directly or through a counter balanced detachable lever. Provision is made for the load for the applied either througe a steel ball recessed in the loading pad or directly through a base of the loading yoke. shear load capacity 400 kg.

Direct shear box for square specimen size 60X60X25 mm complete with one base plate, two plane gripper plates, porous stones and one loading pad. shear box housing,complete with two ball roller strips. Specimen cutter for 60X60X25 mm specimen.

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High Speed Stirrer

Meets the requirements of IS-2720part IV. Electric, high speed, for mechanical determination of sedimentation analysis, comprising of an electric motor, fitted to a stand, with stirring blade, cup and baffle. Supplied complete with cable and plug.

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Unconfined Compression Tester (Spring Type)

The apparatus has been developed on the basis of the design of British Building Reasearch Station by L.F. Cooling and H.Q. Golder. It is a simple and portable apparatus and is used in both laboratory and field for testing unconfined compressive strength of undisturbed specimen of cohesive non-fissured soils taken from a bore hole, a trial pit on opan excavation. A specimen of 38 mm dia x 76 mm long is placed in between two plates and the load is applied by means of hand operated lead screw which expands a calibrated spring. The load deformation curve is plotted autographically by a recording pencil moving across the chart. Strength figurs can be determinated from the completed chart by super imposing a specially calibrated transparent mask over the chart.

Unconfined Compression Tester (Spring Type)

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Unconfined Compression Tester (Proving Ring Type)

The apparatus is light weight, portable but sturdy, bench type and can be used in the laboratory, field and also in a mobile laboratory. Specimens of size 38, 50, 75 and 100 mm dia can be tested. Models Available: Hand Operated Motorised .

Unconfined Compression Tester (Proving Ring Type)

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Pocket Penetrometer

This is for evaluating the strength of soil on field exploration or construction site and in the preliminary laboratory studies.It gives directly the unconfined strength.

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Labroatory Vane Shear Apparatus

This is for determining the shear strength of both remoulded and undistrubed soils. It consists of a torque head adjustable in height to enable the vane to be lowered into the specimen. Rotation of the vane is by mean of a hand wheel which operates a worm gear arrangement turning the upper end of a calibreted torsion spring. Two rates of rotation are incorporated. The vane shaft is attached through the hollow upper shaft to a reset table pointer, Which indicates the angle of torque on dial graduated is degree. The dial reading multiplied by spring factor gives the troque. A container is also supplied. Complete with a set of springs,one each of approx. 2 kg. cm., 4kg.cm., 6 kg cm and 8 kg.cm.

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Swel Test Apparatus

It is designed to determine the swelling pressure developed by a soil specimen moulded to desired densities at known moisture contents, when soaked in water.The load applied to restrain the swelling is transfered to a load measuring proving ring through a perforated swell plate and a load transitor bar. The proving ring is attached to the lead screw of load frame, hand operated, designed for the purpose. The load frame has a worm gear arrangement for initial setting and for subsequent volume change compensation. A soaking tank is provided for saturating the specimen and the base of the mould has channeis and radial grooves with connecting holes.

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Load Frame Electrically Operated

This unit consists of a cabinet which houses the gear system and motor mounted on a sturdy angle iron base. The loading is done through the bottom loading plate which is carried on a lead screw. The advancement of this lead screw is secured against rotating by a sliding key. The top bracket is adjustable in height and carries a hexagonal adaptor for taking standard proving rings. The instrument is fitted with a motor operation on 220/230 volts, single phase, 50 cycles A.C. supply.This is for evaluating the strength of soil on field exploration or construction site and in the preliminary laboratory studies.It gives directly the unconfined strength.

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Load Frame Hand Operated

This is a light weight but sturdy load frame designed for application of penetration load in Laboratory or field CBR tests on soils, and compressive loads in triaxial shear test.It is designed for a maximum load upto 5000 kg. And consists of a two speed screw jack mounted in a frame and with identical top and base channel pieces so that the unit can be placed either way up and the device can be used for loading from above or from below which ever is convenient.

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Load Frame Motorised

This load frame gives a choice of thirty constant rates of strain from a maximum of 0.25 in./min., to 0.0000192 in./min. This can be used whenever there is a requirements of these different strain rates with a maximum load capacity of 5 tonnes. For the research work it is really invaluable. The unit consists of a cabinet which houses the gear system and motor with sturdy angle iron frame. This loading is done through the bottom of loading platan which is carried on a lead screw which advances upwards. The top load bracket which slides over two upright pillars can be positioned at any desired height and locked. It carries hexagonal screw adotptor for standard proving rings. Suitable for operation on 220 volts, 50 cycles, single phase, A.C. supply.

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Soil Lathe Motorised

It is used to prepare specimens of various diameters for triaxial and unconfined compression tests. The apparatus is of cabinet type enclosing the motor coupled to a gear system with lead screw speeds as 1/32 and 1/16 in/min. Speed of disc: 24R.P.M.To run on 220/230 volts, 50 cycles, A.C. supply. G

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Aggregate Crushing Value Apparatus

Consists of both end open cylinder, base plate, a plunger hand leand tamping rod.7.5 cm diam. for 2 mm to 6 mm aggregate.

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Field Density Test Apparatus (Sand Replacement Method)

10 CM-BIS 2720 (PART XXVII) Consists of a sand pouring cylinder, fitted with conical funnel and shutter, one cylindrical container 10 cm dia and 15 cm depth and a square tray of 30cm x 30cm with central hole of 10cm dia .

Field Density Test Apparatus (Sand Replacement Method)

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Beam Moulds

For making cement concrete prisms or bars of square cross section for flexural strength test. Faces are machined flat to within ±0.02mm and inside dimensions to ±0.2 mm made of Cast Iron or Steel, supplied complete with base plate.

Size:

40 mm x 40 mm x 160 mm made of Cast Iron.
100 mm x 100 mm x 500 mm made of Cast Iron.
150 mm x 150 mm x 700 mm made of Cast Iron.
150 mm x 150 mm x 750 mm made of Cast Iron.
Tamping bar 25 mm square x 40 cm long.

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Thickness Gauge (Flakiness Index)

IS:2386 For determining the flakiness index of aggregate. It consists of a panel having accurately cut slots of different standard lengths and width.

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Proctor Needle (Hydraulic Type)

This is identical to spring type Proctor needle except the penetration pressure on the needle is conveyed through a hydraulic pressure gauge 0-70 kg X 1kg. This system permits a greater control over the rate of penetration because of a better visibility of a load indication. It consists of a body of a bellow housing casing pipe, pressure gauge, Handles, 2 off. Small stem, graduated at 12.5 mm intervals to indicate the depth of penetration and to use needle in smaller areas. One needle point set comprising one each of 0.25, 0.5, 1, 1.5, 2, 3, and 5 sq. cm. Tommy pin. Complete as above in a wooden carrying case.

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Proctor Needle (Spring Type)

It consist of a body housing a spring plunger calibrated to read 70kg X 1kg and a handle. Long stem, graduated at 12.5 mm interval to indicate to the depth of penetration and for use with needles of larger areas. Small stem, graduated at 12.5 mm intervals, to indicate the depth of penetration and for use with needles of smaller areas. One needle point set comprising one each of 0.25, 0.5, 1, 1.5, 2, 3, 5 and 6 sq cm. cross sectional area. Complete as above in a wooden carrying case.

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Test Sieves

Sieves 20 cm dia are fabricated out of spun brass, without joint frame, double folded bottom, having beading at top, tightly fitting with each other (Endcott pattern), with brass wire mesh, our own brand. Three series are normally available : BSS / ASTM / ISS.

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Sampling Augers

Sampling Auger outfit. Post-holed auger. Complete with 1 meter rod, tee piece, and handle head size 3", 4" and 6"dia.Sampling Augers outfit-screw type auger, complete with 1 meter rod, tee piece, and handle head size 2", 3" dia. Extension rod 1 meter with end couplings.

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Extractor Frauniversal

The extractor frame has been designed to extract specimens from almost every type of sampling tube, mould in general use in soil engineering laboratory or in the field. This has the advantage that it can be mounted vertically or horizontally as desired. Three 1 1/2 inch diameter samples can be collected into three 1 1/2 inch diameter tubes from one 4 inch dia sample. This is a unique feature which ensures the economic use of the sample in an undisturbed state.

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Hand Operated ( Soil Trimmer )

For trimming various diameter specimens for trixial and unconfined compression test.

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Motorised ( Soil Trimmer )

It consists of a base with a knife support. The platform supporting the specimen ring rotates slowly driven by a fractional H.P. motor with reduction gear housed inside the base. The hardened steel trimming knife is mounted on a support, and is adjustable both horizontally and vertically, which permits trimming of the specimen to the exact size of the ring. A guide prevents overcutting. For use with 65 mm, 3 inch and 4 1/4" diameter specimen rings.

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Sieve Shaker Rotap

The Rotap Shaker is durably constructed and is run by a 1/4 H.P. electric motor. Running parts operated under oil. Machine is easily installed. No foundations are required. It reproduces circular and tapping motion with a uniform mechanical action. It ensures accurate and comparable results with uniformity not obtainable in sand testing. It can accommodate 6/7 full height with one set of lid and pan 20 cm dia sieves.

Time switch 0/60 minutes for use with the sieve shaker.

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Hand Operated ( Flow Table )

The Flow Table consists of a brass table top 250 ± 2.5 mm dia mounted on a rigid stand. The table top is re-inforced with equally disposed ribs and allowed to drop through 12 mm by a ground and hardened cam. Complete with mould 100 mm base dia. 70 mm top dia, 50 mm high.

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Motorised ( Flow Table )

Supplied complete with an electric motor suitable for operation on 230 volts, 50 cycles, single phase A.C. supply.

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Tensile Strength Tester

For making tensile strength tests on cement briquettes. Suitable for tensile tests upto 1200 lbs. Hand operated. Automatic loading by lead shots. Double scale 100 lbs x 1 lb and 50 kg x 0.5 kg. Supplied complete with one standard briquette mould, 10 kgs of lead shots. Weight hanger and a set of weights comprising 4 ozs, 8 ozs, 12 ozs and 1 lb. 4 ozs directly to weight 100 ibs, 200 lbs, 300 lbs and 500 lbs and with a second set of weights comprising 125 gms, 500 gms and 750 gms directly to weight 50 kg, 200 kg and 300 kg.

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Dorry Abrasion Machine

For testing the aggregates for resistance to abrasion in accordance with the standard peocedure laid down in BS : 812. The apparatus consists of a metal disc which revolves in a horizontal plane on a vertical shaft. A suitable attachment for holding the specimen with its axis vertical and its lower end pressed with a prescribed pressure against the surface of the disc (the distance from the centre of specimen to the centre of shaft being 25 cm) is provided. A convenient funnel for feeding sand continuosly upon the rotating disc is also provided. The machine is fitted with a 1/4 h.p. electric motor, driven through a reduction gear to 28-30 revolutions of the disc per minute. Suitable for operation from 220/230 volts, single phase, A.C.supply.

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Laboratory Pulveriser

The Laboratory Pulveriser is a disc type grinder designed for grinding virtually any mateial to produce a fine mesh sample in one operation. The pulveriser is adopted for use in assay offices, metallurgical, aggregate, quarry, chemical and industrial laboratories. It is a self contained grinder furnished with rotating disc having a planetary movement in verticle plane. This feature gives added life to the waring parts and delivers a product of uniform fineness. The pulveriser will reduce a 1 pound sample of quartz type material to 100 mesh or above in 1 minute. Maximum feed size 6 mm.

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Jolting Apparatus

For moulding of three standard square sectioned specimens of 40 mm x 40 mm x 160 mm size of portland and pozzolana cement mortar for the determination of transverse strength.

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Flexure Testing Machine - Motorised

For carrying out transverse strength tests on 40 mm x 40 mm x 160 mm mortar specimens. The equipment consists of a motorised load frame, with a constant rate of strain to supply load on the specimen at the rate of 4 to 6 kg/minute. For measuring the load, a 4 KN proving ring is attached to the cross head of the load frame.

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Universal Governor Apparatus

The drive unit consists of a DC electric motor connected through belt and pulley arrangement. Motor and test set up are mounted on a M.S. fabricated frame. The governor spindle is driven by motor through V belt and is supported in a ball bearing.

The optional governor mechanisms can be mounted on spindle. Digital speed is controlled by the electronic control unit. A rpm indicator with sensor to determine the speed. A graduated scale is fixed to the sleeved and guided in vertical direction.

The center sleeve of the porter and proell governors incorporates a weight sleeve to which weights may be added. The hartnell governor provides means of varying spring rate and initial compression level and mass of rotating weight. This enables the hartnell governor to be operated as a stable or unstable governor.The unit is designed to exhibit the characteristics of the spring loaded governor and dead weight governor.

The unit can perform following experiments : a) Watt, b) Porter, c) Proell and d) Hartnell type governors.

Q) Determination of characteristic curve of sleeve position against controlling force and speed.
R) Plotting of characteristic curves of radius of rotation.

SPECIFICATION :

DC Motor with drive : ½ HP motor & DC drive control for speed variation.

Separate linkages for governor arrangements mentioned above are provided using same motor and base. Speed measurement is done by digital rpm indicator sleeve displacement is to be noted on the scale provided. Variable speed control unit is provided with the apparatus. Following experiments can be conducted on the gravity controlled governor apparatus i.e., for Watt Governor, Porter Governor and Proell Governor and also on Spring Loaded Governor.

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Motorized Gyroscope

The figure shown the motorized gyroscope consisting of a disc rotor mounted on a horizontal shaft which rotates in the ball bearings of the horizontal frame about XX axis. The rotor shaft is coupled to the motor which is mounted on a trunnion frame with bearings in the yoke frame, which is free to rotate about its vertical axis YY. Hence, the disc rotor can rotate about three perpendicular axis. The rate of precession can be measured with the help of the angular scale and the pointer fitted to the frame. In steady position, the horizontal frame is balanced by providing a weight on the opposite side of the motor. The yoke frame is free to rotate about the axis ZZ. Thus, freedom of rotation about three perpendicular axis is given to the rotor.

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Static And Dynamic Balancing Apparatus

AIM : To balance the given masses statically by drawing force polygon and couple force polygon and dynamically by trial and error method on a shaft.

APPARATUS :

Shaft mounted in a frame between ball bearings connected to motor mounted on a stand by handing with hook and chain steel ball weights, four given masses with hanger.

DESCRIPTION OF APPARATUS :

The apparatus consists of a rotating shaft mounted on a stand. Its two ends is connected through ball bearing to the motor. On one end of the shaft a rotating disc is attached with a printer and a 0 0C360C protector is fixed on one end of the frame. The given masses are to be mounted on this shaft at the convenient angles so as to be dynamically balanced with the shaft when it rotates along its axis

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Whirling Of Shafts (Model)

This apparatus is to study the whirling phenomenon. The shaft may have any type of end conditions i.e., one end fixed and other simply supported or both ends fixed.

The apparatus consists of a frame to support its driving motor and fixing blocks etc. A special design is provided to clear out the effects of bearings of motor spindle from those of testing shaf
i) KINEMATIC COUPLING :

This coupling C is specially designed to eliminate the side effect on motor spindle bearings on those of the rotating shafts.

ii) BALL BEARING FIXING ENDS : (a and b)

These ends fix the shafts while it rotates with easy shaft replace system. The fixing ends provide change of end fixing condition of the rotating shaft as per the requirement.

SHAFT DETAILS

Shaft No. Dia in (Approx). Length in (Approx.)

1 5mm 1 Meter
2 6mm 1 Meter
3 7mm 1 Meter

END FIXING ARRANGEMENTS :
The end supporting block (motor side) may be used with conditions of fixed end of the rotating shaft. To make the end fixed, both all bearings support the rotating sleeve.

To provide fixed end and directionally free end, the separate sleeves are provided. Each sleeve may be easily fitted in the end supporting block.

The driving motor 220 volts, AC/DC ¼ HP 5000 RPM 50 c/s motor, with speed control unit.

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Digital Gas Flow Meter

FEATURES:

• Direct Digital Readout
• Micro controller Based
• Highly Accurate and Fast
• Useful for measuring any gas flow specially in G.C.
• Easy to operate
• Free of personal errors

SPECIFICATIONS:

1) Range : SMART FLOW 20:---- 5 cc/min to 500 cc/min
SMART FLOW 21-----0.5 cc/min to 45 cc/min
SMART FLOW 22-----200 cc/min to 2000 cc/min
2) Accuracy : ± 2% of Reading, ±1 digit
3) Power supply : 230V AC, 50Hz, 2W
4) Resolution : 0.1cc/min for SMART FLOW 20
0.01 cc/min for SMART FLOW 21
1.0 cc/min for SMART FLOW 22
5) Dimensions : 27cm(H) x 13cm(W) x 10cm(D)

PRINCIPLE:

The SMART FLOW20 is based on the classical method viz. soap film method. The instrument is automated by using microcontroller, which provides highly accurate measurement and direct digital read out of gas flow rate. The time required for the soap film to pass through a known fixed volume is measured. The soap film is
sensed by IR sensor. When the soap film passes through first sensor, it activates the timer of microcontroller. Timer is stopped when the film crosses the second sensor. The flow rate is then calculated by microcontroller and instantly displayed in cc/min.

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Francis Turbine Test Rig

The present set-up consists of a runner. The water is fed to the turbine by Means of Centrifugal Pump, radially to the runner. The runner is directly mounted on one end of a central SS shaft and other end is connected to a brake arrangement. The circular window of the turbine casing is provided with a transparent acrylic sheet for observation of flow on to the runner. Load is applied to the turbine with the help of brake arrangement so that the efficiency of the turbine can be calculated. A draft tube is fitted on the outlet of the
turbine. The set-up is complete with guide mechanism. Pressure and Vacuum gauges are fitted at the inlet and outlet of the turbine to measure the total supply head on the turbine.

EXPERIMENTS:

To study the operation of a Francis Turbine
To determine the Output Power of Francis Turbine
To determine the Turbine Efficiency

UTILITIES REQUIRED:

Water Supply and Drain
Electricity 15kW, 440 V AC, Three Phase
Floor Area 1.5x 0.75 m

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Double Stage Air Compressor Test Rig

Two Stage Air Compressor Test Rig consists of a double stage reciprocating type air compressor driven by 2 HP Motor through a belt. The outlet of the air compressor is connected to reservoir (Tank) and suction is connected to another air tank with a calibrated orifice plate and a water manometer. Bellow is fitted on one side of the air tank to regulate the flow. Temperature of inlet air, after single compression, inlet and outlet of second compression and pressure in reservoir and at intermediate stage can be measured by
thermometers and gauges.

EXPERIMENTS:

To calculate the volumetric efficiency
To calculate isothermal HP
To calculate compression ratio

UTILITIES REQUIRED:

Electricity 3 kW, 220V AC, Single Phase
Floor Area 1.5 x 0.75 m
Tachometer

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Heat Transfer In Natural Convection Apparatus

The setup consists of a brass tube fitted in a rectangular duct in a vertical fashion.The duct is open at the top and bottom, and forms an enclosure and serves the purpose of undisturbed surrounding. One side of the duct is fitted with a transparent good quality Acrylic window for visualization. An electric heating element is kept in the vertical tube that in turns heats the tube surface. The heat is lost from the tube to the surrounding air by natural convection. The temperature of the vertical tube is measure by Temperature Sensors and displayed by a Digital Temperature Indicator with multichannel switch. The heat input to the heater is measured by a Digital Ammeter and a Digital Voltmeter and is varied by a Variac. The tube surface is polished to minimize the radiation losses.

EXPERIMENTS

To determine average heat transfer coefficient

UTILITIES REQUIRED

Electricity Supply: I Phase, 220 V AC, 2 Amps.
Table for setup support

Heat Transfer In Natural Convection Apparatus

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Inversion Of Four Bar Mechanism

Model is made up of aluminum and other metallic parts. Model is mounted on a wooden board of size 90 x 60 cm. Angular and linear scales are provided to find the displacement of points in links.

Following mechanism will be on the board.

a. Locomotive Coupling Bar Mechanism, or link mechanism
b.Beam Engine Mechanism
c. Ackerman steering gear mechanism

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Reciprocating Pump Test Rig

Apparatus consists of a close circuit through which water is circulated continuously by means of a double acting reciprocating pump of 25 mm x 20 mm coupled to a 1.0 H.P. capacity A.C. motor to make the supply from sump tank. Pump is provided with air vessels. Max head of the pump is 5 Kg/cm2. A sump tank of 80 cm long, 40 cm wide and 30 cm high fabricated S.S. sheet is provided with the apparatus. A drain valve of 15 mm size is provided in the bottom of tank. Discharge of water can be collected by the help of a collecting tank of 40 cm x 40 cm and 40 cm high Inside of the tank is lined with FRP. The tank is provided with gauge glass tube, flow diverting arrangement and a drain valve of 25 mm size. Complete G.I. piping system with foot valve, vacuum gauge and pressure gauge (located at suitable places) with necessary fittings are provided with the apparatus. A regulating valve is provided on the downstream side of the circuit to regulate the flow.

EXPERIMENTS:

To determine the efficiency of the pump.

FEATURES:

Self contained water circulation unit.
Pump giving adequate flow for meaningful experiments.
Capacity of water - 90 lit. approx.
Electrical supply - Single phase, 1.0 H.P. Cap.
Comprehensive Instruction Manual covers experiment presented in the form of a full laboratory report.
Space saver as collecting tank is mounted over the sump tank.
The inside surface of the tank is provided with FRP to minimize the problem of corrosion.
Space requirement: Floor area 1.8 m x 1.0 m x 1.5 m approx.

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Air Conditioner Test Rig

The A.C. test rig works on simple vapour compression
refrigeration cycle using R 134 a as a refrigerant.The system is fabricated such that student can study all the air conditioning processes. It is also useful to understand working of all the components of system, their performance and control etc. All the components are mounted on the display board, so that students can observe their working easily.

EXPERIMENTS:

To evaluate actual and theoretical C.O.P. of the system.
To plot the refrigeration cycle on P-H & T-S charts.
To plot the psychrometric processes on psychrometric charts.

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Double Disc Metallurgical Polishing Machine

We offer premium quality range of double desk polishing machine extensively used for polishing metallographic samples. Procured from our reliable vendors these are provided with double disc, driven by high torque DC motor. The paper holding band and water faucet enhances dry/wet grinding and assist in final lapping. Used for microscopic observation to study metal structures, these machines are finely polished to ensure smooth, scratch free and mirror like appearance that enable accurate metallographic interpretation.

TECHNICAL DETAILS:

Motor Capacity: ½ Hp AC
Discs Diameter: 8 inch each
Supply: 15 Amps, 230V, Single phase

Double Disc Metallurgical Polishing Machine

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Emissivity Measurement Apparatus

The present Setup is designed to measure the emissivity of test plate. The test plate comprises of a mica heater sandwiched between two circular plates. Black plate is identical with test plate,
but its surface is blackened. As all the physical properties, dimension and temperature are equal; heat losses from both plates will be same except radiation loss. Hence the input difference will be due to difference in emissivity. Both plates are supported on individual brackets in a wooden enclosure with one side glass to
ensure steady atmospheric conditions. Temperature Sensors are provided to measure the temperature of each plate and surrounding. Supply is given to heaters through separate Variac so that temperatures of both can be kept equal and is measured with Digital Voltmeter and Digital Ammeter.

EXPERIMENTS:

Determining the Emissivity of a test plate.
Study the variation of emissivity of test plate with respect to absolute temperature.

UTILITIES REQUIRED:

Electricity Supply: 1Phase, 220 V AC, 4 Amps.
Table for setup support

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Journal Bearing Apparatus

The apparatus consists of a plain steel shaft excavated in a bearing and directly driven by a FHP Motor. The bearing is freely supported on the shaft and sealed at the motor end. The speed of the motor is controlled accurately by the speed control unit and it can be made run in both directions. Twelve equal-spaced pressure taping around the circumference and four along the axis are provided and are connected to manometer by PU Tubing so that the pressure head of oil in all tubes can be observed at a time. The bearing can be loaded by attaching weights to the arm supported beneath it.

SCOPE OF EXPERIMENTATIONS:

To study the pressure profile of lubricating oil at various conditions of load and speed.
Plotting the Cartesian polar pressure curves.
To measure the frictional torque and power transmit.

UTILITIES REQUIRED:

Electric supply 230 V AC, Single Phase.
Bench area 1.5 x 1.5 x 4 m
Tachometer to find out RPM of journal.
Oil SAE 40 about 5 Ltrs.

TECHNICAL DETAILS:

Journal Diameter 50 mm
Bearing Diameter 55 mm
Weights 4 adjustable weights.
Motor Variable speed FHP Motor
Control Panel For speed control of motor.
Manometer 16 Tubes.
Oil recommended SAE 40

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Static & Dynamics Balancing Apparatus

This equipment is designed for carrying out the experiment for balancing a rotation mass system. The apparatus consists of a steel shaft fixed in a rectangular frame. A set of four blocks with a clamping arrangement is provided. For static balancing, each block is individually clamped on shaft and its relative weight is found out using cord and container system in terms of number of steel balls. For dynamic balancing, a moment polygon is drawn using relative weights and angular and axial position of blocks is determined. The block are clamped on shaft is rotated by a motor to check dynamic balance of the system. The system is provided with angular and longitudinal scales and is suspended with chains for dynamic balancing.

EXPERIMENTS:

To balance the masses statically and dynamically of a single rotating mass system.
To observation of effect of unbalance in a rotating mass system

UTILITIES REQUIRED:

Electric supply 0.5 kW, 220V AC, Single Phase

TECHNICAL DETAILS:

Drive Motor: FHP Motor, variable speed, with speed controller

Balancing weight : 4 Nos. with different sized eccentric mass for Varying unbalance

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Heat Transfer In Two Phase Apparatus

It provides visualization of two phases of liquid viz. boiling and condensation. The liquid is R-11 in which a hot cylinder is immersed. The boiling of liquid can be observed over heater surface up to nucleate boiling phase. Condenser coil is provided at the top of the cylinder, over which the vapor is condensed to liquid. A pressure of the vapor and water flow in condenser is measured by a pressure
gauge & Rotameter. Dimmer stat provides control of heater surface temperature and thermometer notes liquid temperature, inside glass cylinder.

EXPERIMENTS:

To study the two phases heat transfer unit

UTILITIES REQUIRED:

Electricity Supply: 1Phase, 220 V AC, 3 kW
Floor area 2 m x 1m

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Universal Vibration Apparatus

VIB-LAB. , is useful to study various experiments and to verify
the principles and relations pertaining to study of vibrations. In this apparatus frame and stand made out of thick M.S.channels are provided for conducting various experiments related to vibration. While designing special care is taken for quick and easy assembly and dismantling of experimental setups. Digital RPM Indicator is provided for measuring speed of the exciter unit

EXPERIMENTATIONS

Pendulum Experiments
Longitudinal Experiments
Torsional Experiments

SCOPE OF SUPPLY

1. Universal Frame and stand made out of thick M.S.Channel with powder coating for longer life of the unit.
2. Control Panel consisting of Dimm-erstat, Digital RPM Indicator and ON/OFF, switches and fuses.
3. D.C. variable speed motor ( F.H.P.) with exciter unit fixed on the shaft of the motor.
4. Single Pen ordinary type Strip Chart Recorder (for recording vibrations).
5. Damper with arrangement for changing damping.
6. Pen holder and descender assembly for plotting the graph of damping torque vs., depth of damping
drum
7. Disc – 3 Nos. for conducting rotor system experiments.
8. Chucks for gripping wires in simple and compound pendulum and rotor system experiments.
9. Spring steel beam – 2 Nos. for conducting longitudinal vibrations.
10. Spring steel shaft for compound pendulum.

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Parallel Counter Flow Heat Exchanger Apparatus

Heat exchanger is devices in which heat is transferred from one fluid to another. The apparatus consists of a concentric tube heat exchanger. Hot water flows through inner tube in one direction only and cold water flows over the inner tube in outer tube. Direction of cold fluid flow can be changed from parallel or counter to hot water so that unit can be operated as parallel or counter flow heat exchanger. Flow rates of hot and cold water are measured using Rotameter. A magnetic drive pump is used to circulate the hot
water from a re-cycled type water tank, which is fitted with heaters and Digital Temperature Controller.

EXPERIMENTS:

To calculate the following parameters both for parallel and counter flow arrangement.
To find the rate of heat transfer
To calculate the LMTD
Overall heat transfer co-efficient.
To compare the performance of Parallel and Counter flow heat exchanger

UTILITIES REQUIRED:

Water supply 10 lit/min (approx.) and drain
Electricity Supply: 1Phase, 220 V AC, 3 kW
Floor area 2 m x 0.6m

Parallel Counter Flow Heat Exchanger Apparatus

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Thermal Conductivity Of Insulating Powder Apparatus

Insulating Powder Apparatus is designed to determine the thermal conductivity of insulating powder. The Apparatus consists of two thin walled concentric copper spheres. Inner sphere houses Nichrome Wire heating coil. Insulating powder is filled between the spheres. Heat flows radially outwards. Temperature sensors at proper positions are fitted to measure surface temperatures of spheres. Heat input to the heater is given through a Variac and measured by Digital Voltmeter & Digital Ammeter. By varying the heat input rates, wide range of experiments can be performed.

EXPERIMENTS:

Determination of thermal conductivity of insulating powder

Comparison of thermal Conductivity of insulating powder at different temperatures

UTILITIES REQUIRED:

Electricity Supply: 1 Phase, 220 V AC, 2 Amps.

Thermal Conductivity Of Insulating Powder Apparatus

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Vapor Compression Refrigeration Test Rig

The REFRIGERATION test rig works on simple vapour compression refrigeration cycle and uses R134a as a refrigerant. It is environment friendly. The system is fabricated such that
students can observe and study vapour compression cycle, its component principle & working. The arrangement of parts such that, all the parts are visible and working can be easily understood.

EXPERIMENTS:

To study various components ans controls used on vapor compression cycle.
To evaluate the tonnage capacity of the air conditioning system by enthalpy difference method.
To evaluate actua; & theorectical C.O.P of vapor compression cycle.
To plot actual refrigeration cycle on P-H Chart.

Vapor Compression Refrigeration Test Rig

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Cross Flow Heat Exchanger Apparatus

The cross flow heat exchanger is air-to-air type heat exchanger. On both hot and cold sides, air flow is generated by centrifugal blowers. Hot air is obtained by passing air over a bank of finned tubes. The air then flows to heat exchanger section i. e. a bank of finned tubes. Hot air flows through tubes while cold air flows over the tubes at right angle to hot air. The experiments can be conducted over various air flow rates and air temperatures to determine LMTD, heat transfer rates and effectiveness of heat exchanger.

EXPERIMENTS:

To determine the water side overall heat transfer coefficient on a cross-flow heat exchanger

UTILITIES REQUIRED:

Electricity Supply: 1Phase, 220 V AC, 3 kW
Floor area 3 m x 2m

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4 Stroke 1 Cylinder Petrol Engine Test Rig

4 Stroke 1 Cylinder Petrol Engine Test Rig With Rope Brake Dynamometer
Consisting of:

Petrol Engine: A Four stroke single cylinder petrol engine (Hero Honda) developing about 2.5 HP at 3000 RPM variable speed with standard accessories.
Loading Device: A rope brake arrangement with a brake drum fitted on the engine shaft provided with cooling water arrangement for brake drum. Brake stand arrangement provided with spring balance, a set of dead weights and screw rod with handle wheel. Brake stand arrangement is mounted alongwith the engine on substantial base plate.
Fuel Measuring Arrangement: Consisting of fuel tank, fuel piping from fuel tank to engine, measurement of fuel consumption by a burette and a three way cock connecting tube.
Air Intake and Exhaust Gas Measurement: A S.S. tank, mounted on iron stand, fitted with suitable orifice plate, manometer, temperature sensor for measuring the air intake temperature is provided. A temperature sensor is also provided to measure the exhaust gas temperature.
Panel board: All the temperature sensor measuring device and manometer are mounted on panel board.

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Centrifugal Pump Test Rig

Set up consists of a centrifugal pump coupled with electrical motor,
supply tank,measuring tank & pipe fittings for closed loop water circulation. Pressure and Vacuum gauges are connected on delivery and suction side of pump for the purpose of measurement. The flow rate of water is measured using measuring tank and stop watch provided.

EXPERIMENTS:

To determine overall efficiency and pump efficiency of the centrifugal pump.
To plot Head vs. Discharge, Pump efficiency vs. Discharge

FEATURES:

Closed loop water circulation
Compact & stand-alone set up
Stainless Steel tanks and wetted parts
Superb Painted structure
Simple to operate & maintain

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Motorized Gyroscope Apparatus

The set up consists of heavy disc mounted on a horizontal shaft, rotated by a variable speed motor. The rotor shaft is coupled to a motor mounted on a triunion frame having bearings in a yoke
frame, which is free to rotate about vertical axis. A weight pan on other side of disc balances the weight of motor. Rotor disc can be move about three axis. Torque can be applied by calculating the weight and distance of weight from the center of rotor. The gyroscopic couple can be determined.

EXPERIMENTS:

Experimental justification of the equation T = 1 w. wp for calculating the gyroscopic couple by observation and measurement of results for independent vibrations in applied couple T and precession wp.
To study the gyroscopic effect of a rotating disc
Observation of gyroscopic effect of rotating disc

UTILITIES REQUIRED:

Electric supply: 230 V AC, Single Phase.
Bench area: 1m x 1m

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Stefan Boltzman's Apparatus

The apparatus is designed to determine, the Stefan Boltzmann constant. The apparatus consists of a hemisphere fixed to a Bakelite plate, the outer surface of which forms the jacket to heat it. Hot water to heat the hemisphere is obtained from a hot water tank, which is fixed above the hemisphere. The copper test disc is introduced at the center of hemisphere. The temperatures of hemisphere and test disc are measured with the help of temperature sensors.

EXPERIMENTS:

Determination of Stefan Boltzmann constant and study the effect of hemisphere temperature on it

UTILITIES REQUIRED:

Electricity Supply: I Phase. 220 V AC, 2 kW.
Table for setup support

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Hydraulic Ram Test Rig

Apparatus consists of a close circuit through which water is circulated continuously by means of a centrifugal pump of 25 mm x 25 mm with 0.5 H.P. motor to make the supply from sump tank. A
sump tank 125 cm long, 80 cm wide and 40 cm high fabricated on M.S. angle frame with 3 mm thick M.S. sheet is provided. Inside of the tank is lined with FRP. A drain valve of 15 mm size is provided in the bottom of the tank.

A supply tank 50 cm x 50 cm and 100 cm high fabricated with S.S. sheet with over flow arrangement, gauge glass tube and 15 mm size drain valve is provided. Inside of the tank is lined with FRP. The tank has the provision for fixing the supply pipe of 50 mm dia of which other end is connected to the ram. The tank is supported on a stand
fabricated from M.S. angle.

For the supply head of 2.5 m, the discharge head of the ram will be 15 m (approx.) the discharge will be 360 LPH. A pressure gauge is provided with a regulating valve on the delivery side of the ram (delivery pipe is of 15 mm dia) so that much greater head of water can be observed and obtained by the adjustment of the shifting valve provided in the ram assembly. Lifted water can be collected by the help of a collecting tank of 30 cm x 30 cm and 30 cm high. The tank is provided with gauge glass tube, flow diverting arrangement and a drain valve of 25 mm size. Waste water can be measured by the help of another collecting tank. The tank is provided with gauge glass tube, flow diverting arrangement and a drain valve of 15 mm size.

Necessary G.I. piping system & flexible pipe of suitable size, necessary fitting and control valve are provided with the apparatus.

EXPERIMENTS:

To determine the efficiency of ram.

FEATURES:

Compact & stand-alone set up
Stainless Steel tanks and wetted parts
Superb Painted structure
Simple to operate & maintain

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Thermal Conductivity Of Metal Rod Apparatus

The experimental set up consists of metal bar, one end of which is heated by an electric heater while the other end of the bar projects inside the cooling water jacket. A cylindrical shell filled with the asbestos insulating powder surrounds the middle portion of the bar. The temperature of the bar is measured at different sections. Heat Input to the heater is given through Variac and measured by Digital Voltmeter & Digital Ammeter. By varying the heat input rates, wide range of experiments can be performed. Water under constant head condition is circulated through the jacket and its flow rate and temperature rise is noted.

EXPERIMENTS:

To plot the temperature distribution along the length of Bar
To determine the thermal conductivity of given bar at various temperatures

UTILITIES REQUIRED:

Water supply 3 lit/min (approx.)
Drain
Electricity Supply: 1 Phase, 220 V AC 2 Amp.

Thermal Conductivity Of Metal Rod Apparatus

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Ice Plant Test Rig

The Ice Plant Test rig works on simple vapour compression
refrigeration cycle and uses R134a or R 404 A as a refrigerant. These are environment friendly. The system is fabricated such that students can observe and study ice formation process. It is also useful to understand working of vapour compression system, its performance and controls used. The arrangement of parts such that, all the parts are visible and working can be easily understood.

EXPERIMENT:

To Study various components and controls used in Ice Plant
To Study capacity of Ice plant
To calculate C.O.P of System
To plot system performance on P-H chart

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Gear Oil Pump Test Rig

Set up consists of a gear pump having a pair of meshed gears coupled with electrical motor, supply tank, measuring tank & pipe fittings for closed loop oil circulation. Pressure and Vacuum gauges are connected on delivery and suction side of pump for the purpose of measurement. The flow rate of water is measured using measuring tank and stop watch provided.

EXPERIMENTS:

To determine overall efficiency and pump efficiency of the gear pump.
To plot Head vs. Discharge, Pump efficiency vs. Discharge

FEATURES:

Closed loop circulation
Compact & stand-alone set up
Stainless Steel tanks and wetted parts
Superb Painted structure
Simple to operate & maintain

UTILITIES REQUIRED:

Electric supply Provide 230 +/- 10 VAC, 50 Hz, single phase electric supply with proper earthing. (Neutral – Earth voltage less than 5 VAC.) 5A, three pin socket with switch for pump.

Oil supply Oil @ 30 liters

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Heat Transfer In Forced Convection Apparatus

The apparatus consists of Blower unit fitted with the test pipe. Nichrome wire heater surrounds the test section. Four Temperature Sensors are embedded on the test section, two placed in the air stream at the entrance and exit of the test section to measure the inlet and outlet air temperature. Test pipe is connected to the delivery side of the blower along with the Orifice to measure flow of air through the pipe. Constant heat flux is given to pipe by an electric heater through a Variac and measured by Digital Voltmeter and Digital Ammeter.

EXPERIMENTS

To determine average surface heat transfer coefficient for a pipe losing heat by forced convection.

Comparison of heat transfer coefficient for different airflow rates and heat flow rates.

To plot surface temperature distribution along the length of pipe

UTILITIES REQUIRED

Electricity Supply: 1 Phase, 220 V AC, 10Amp.
Floor area of 1.2mx 0.5m

Heat Transfer In Forced Convection Apparatus

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Thermal Conductivity Of Liquids Apparatus

The present apparatus is designed to determine thermal conductivities of different liquids. The apparatus consists of a heater. The heater heats a thin layer of liquid. A cooling plate removes heat through liquid layer, ensuring unidirectional heat flow. Temperature is measured across the liquid layer and complete assembly is properly insulated. A proper arrangement for changing the liquids is provided. The whole assembly is kept in chamber.

EXPERIMENTS:

Determination of Thermal conductivity of different liquids and to make a comparative study
Study of variation of thermal conductivity of different liquids with temperature

UTILITIES REQUIRED:

Water supply 5 lit/min (approx.)
Drain. .
Electricity Supply: 1Phase, 220 V AC, 2 Amps.

TECHNICAL DETAILS:

Thermal Conductivity Of Liquids Apparatus

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Pelton Turbine Test Rig

The present set-up consists of a runner. The buckets are mounted on the runner. The water is fed to the turbine, through SS nozzle with a SS spear, by means of Centrifugal Pump, tangentially to the runner. Row of water into turbine is regulated by adjusting the spear position by the help of a given hand wheel The runner is directly mounted on one end of a central SS shaft and other end is connected to a brake arrangement. The circular window of the turbine casing is provided with a transparent acrylic sheet for observation of flow on to the buckets. This runner assembly is supported by rigid MS structure. Load is applied to the turbine with the help of this brake dynamometer so that the efficienc y of the turbine can be calculated. Pressure gauge is fitted at the inlet of the turbine to measure the total supply head to the turbine.

EXPERIMENTS:

To study the operation of a Pelton Wheel Turbine
To determine the Output Power of Pelton Wheel Turbine
To determine the Turbine Efficiency

UTILITIES REQUIRED:

Water Supply and Drain
Electricity 15 kW, 440V AC, Three Phase
Floor Area 1.5 x 0.75 m

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Water Cooling Tower Test Rig

Cooling tower is a apparatus which transfers heat from a circulating water stream. Thus, transferring the heat deception to the maximum extent. Further, this will enable the student the actual visualization of the cooling tower operation.

EXPERIMENT:

To study cooling tower and find its efficiency

UTILITIES REQUIRED:

Electricity 1 kW, 220V AC, Single Phase
Floor Area 1.5 x 0.75 m

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Epicyclic Gear Train & Holding Torque Apparatus

Gear-train is any combination of gear wheels by which motion is transmitted from one
shaft to another shaft. In epicyclic gear-trains, the axes of shafts on which the gears are
mounted may move relative to a fixed axis.

EXPERIMENTS

To measure epicyclic gear ratio between input shart and output shaft.
To measure epicyclic gear ratio between input shaft and holding drum.
To measure input torque, holding torque and output torque.

DESCRIPTION

It consists of two types of epicyclic gear-trains

1. External Type and
2. Internal Type.

External type Epicyclic Gear Tain : It is a hand driven demonstration model consisting of two bearing blocks, supporting input and out put shafts through the epicyclic gear-train. The input shaft carries on arm and pin on which the compound gear wheel is free to revolve and it meshes with the fixed wheel and the wheel is keyed to the output shaft.

Internal type Epicyclic Gear Train : It is a motorised unit consisting a SUN gear mounted on input shaft. Two plane gears meshes with the annular gear. These planet gears are mounted on a common arm to which output shaft is fitted. Loading arrangement is provided for loading the system and to measure holding torque.

Epicyclic Gear Train & Holding Torque Apparatus

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4 Stroke 4 Cylinder Petrol Engine Test Rig

4 Stroke 4 Cylinder Petrol Engine Test Rig With Hydraulic Brake Dynamometer
Consisting of:

Petrol Engine: A Four stroke Four cylinder petrol engine developing about 10.0 HP at 1500 RPM variable speed with standard accessories. Engine is provided with self starter, Battery, dynamo, lubrication oil filter, fuel pump, ignition coil, exhaust silencer, choke control and throttle control. The engine is provided with switches for conducting Morse test.
Loading Device: A Hydraulic Dynamometer complete with a weighing gear, dead weight in kgm suitable for testing the engine at variable speeds. The engine and hydraulic Dynamometer are directly coupled on substantial base plate.
Fuel Measuring Arrangement: Consisting of fuel tank, fuel piping from fuel tank to engine, measurement of fuel consumption by a burette and a three way cock connecting tube.
Air Intake and Exhaust Gas Measurement: A S.S. tank, mounted on iron stand, fitted with suitable orifice plate, manometer, temperature sensor for measuring the air intake temperature is provided. A temperature sensor is also provided to measure the exhaust gas temperature.
Preparation of energy balance for above engine. Exhaust gas calorimeter with temperature sensors, water meter is also provided to plot heat balance sheet. Cooling water arrangement is also provided for measuring the heat carried away by the cooling water consisting of suitable inlet and outlet piping with temperature sensors.
Panel board: All the temperature sensor measuring device and manometer are mounted on panel board. It also consists of ignition and starting switch, fuse unit Pilot lamp, throttle control switch, choke control switch, and switch assembly for cutting off each cylinder for conducting morse test

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Kaplan Turbine Test Rig

The present set-up consists of a scroll casing housing a runner. Water enters the turbine through the stationary guide vanes and passes through the runner axially. The runner has a hub and airfoil vanes, which are mounted on it. The water is fed to the turbine by means of Centrifugal Pump. The runner is directly mounted on one end of a central SS shaft and other end is connected to a brake
arrangement. A transparent hollow cylinder made of acrylic is fitted in between the draft tube and the casing for observation of flow. Load is applied to the turbine with the help of rope brake arrangement so that the efficiency of the turbine can be calculated. The set-up is supplied with control panel. A draft tube is fitted on the outlet of the turbine. The set-up is complete with guide mechanism.
Pressure and Vacuum gauges are fitted at the inlet and outlet of the turbine to measure the total supply head on the turbine.

EXPERIMENTS:

To study the operation of Kaplan turbine.
To determine the Output Power of Kaplan Turbine.
To determine the turbine efficiency

UTILITIES REQUIRED:

Electricity 3 kW, 220V AC, Single Phase
Floor Area 1.5 x 0.75 m
Tachometer

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Heat Transfer From Pin Fin Apparatus

The setup is designed to study the heat transfer in a pin fin. It consists of pin type fin fitted in duct. A fan is provided on one side of duct to conduct experiments under forced draft conditions. Airflow rates can be varied with the help of damper provided in the duct. A heater heats one end of fin and heat flows to another end. Heat input to the heater is given through Variac. Digital Temperature Indicator measures temperature distribution along the fin.

EXPERIMENTS

To study temperature distribution along the length of fin in both Free & forced convection
Comparison of theoretical temperature distribution with experimentally obtained distribution

UTILITIES REQUIRED

Electricity Supply: 1 Phase, 220 V AC, 5 Amps.
Table for setup support

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Separating And Throttling Calorimeter Apparatus

SEPARATING CALORIMETER

It consists of two concentric chambers, the inner chamber and the outer chamber, which communicates with each other through an opening at the top. As the steam discharges through the metal basket, which has a large number of holes, the water particles due to their heavier momentum get separated from the steam and collect in the chamber. The comparatively dry steam in the inner chamber moves up and than down aging through the annular space between the two chambers and enters the Throttling Calorimeter.

THROTTLING CALORIMETER

It consists a narrow throat (Orifice). Pressure and temperature are measured by pressure gauge and thermometer. The steam after throttling process passes through the heat exchanger and condensate is collected. Steam Generator is also provided to supply the saturated steam (Max) at 2kg/cm2 pressure. There is no need of boiler.

SCOPE OF EXPERIMENTATION:

To find the dryness fraction of steam

Separating And Throttling Calorimeter Apparatus

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What We Offer

Agricultural Instruments

Laboratory Instruments

Scientific Instruments

Industrial Instruments

Survey Instruments

Educational Instruments Bosstek Lx-1010b Lux Meter

Seprating Funnel Hollo & Rota Flow Stop Cork

Mercury Vapour Indicator

Compression Testing Machine (Hydraulic)

Aggregate Impact Tester

Length Gauge (Elongation Index)

Compaction Factor Apparatus

Vee Bee Consistometer

Cement Autoclave

Vibration Machine

Briquette Mould

Los Angeles Abrasion Testing Machine

Develattrition Testing Machine

Jaw Crusher (Laboratory Type)

Density Basket

Needle Vibrator

Tile Abrasion Testing Machine

Air Entertainment Meter

Bitumen Extractor

Marshall Stability Test Apparatus

Ductility Testing Machine

Ring And Ball Apparatus

Cone Penetro Meter

Field Density Test Apparatus (Core Cutter Method)

Liquid Limit Device

Proctor Compaction Apparatus

Proving Ring

Vicat Apparatus

Pycnometer

Rapid Moisture Meter - 25 Or 50

Plate Bearing Ratio Test Apparatus

Direct Shear Apparatus

High Speed Stirrer

Unconfined Compression Tester (Spring Type)

Unconfined Compression Tester (Proving Ring Type)

Pocket Penetrometer

Labroatory Vane Shear Apparatus

Swel Test Apparatus

Load Frame Electrically Operated

Load Frame Hand Operated

Load Frame Motorised

Soil Lathe Motorised

Aggregate Crushing Value Apparatus

Field Density Test Apparatus (Sand Replacement Method)

Beam Moulds

Thickness Gauge (Flakiness Index)

Proctor Needle (Hydraulic Type)

Proctor Needle (Spring Type)

Test Sieves

Sampling Augers

Extractor Frauniversal

Hand Operated ( Soil Trimmer )

Motorised ( Soil Trimmer )

Sieve Shaker Rotap

Hand Operated ( Flow Table )

Motorised ( Flow Table )

Tensile Strength Tester

Dorry Abrasion Machine

Laboratory Pulveriser

Jolting Apparatus

Flexure Testing Machine - Motorised

Universal Governor Apparatus

Motorized Gyroscope

Static And Dynamic Balancing Apparatus

Whirling Of Shafts (Model)

Digital Gas Flow Meter

Francis Turbine Test Rig

Double Stage Air Compressor Test Rig

Heat Transfer In Natural Convection Apparatus

Inversion Of Four Bar Mechanism

Reciprocating Pump Test Rig

Air Conditioner Test Rig

Double Disc Metallurgical Polishing Machine

Emissivity Measurement Apparatus

Journal Bearing Apparatus

Static & Dynamics Balancing Apparatus

Heat Transfer In Two Phase Apparatus

Universal Vibration Apparatus

Parallel Counter Flow Heat Exchanger Apparatus

Thermal Conductivity Of Insulating Powder Apparatus

Vapor Compression Refrigeration Test Rig

Cross Flow Heat Exchanger Apparatus

4 Stroke 1 Cylinder Petrol Engine Test Rig

Centrifugal Pump Test Rig

Motorized Gyroscope Apparatus

Stefan Boltzman's Apparatus

Hydraulic Ram Test Rig

Thermal Conductivity Of Metal Rod Apparatus

Ice Plant Test Rig

Gear Oil Pump Test Rig

Heat Transfer In Forced Convection Apparatus

Thermal Conductivity Of Liquids Apparatus

Pelton Turbine Test Rig

Water Cooling Tower Test Rig

Epicyclic Gear Train & Holding Torque Apparatus

4 Stroke 4 Cylinder Petrol Engine Test Rig

Kaplan Turbine Test Rig

Heat Transfer From Pin Fin Apparatus

Separating And Throttling Calorimeter Apparatus

Weather Measuring Instruments

Digital Measuring Instruments

Application Software Packages

Cable Plug

Humidity Probe Lutron

Digital Stopwatches

Leakage Detector

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Mr. Sebastian Nunes (Technical Manager)
789, Avinashi Road, A. R. Complex, Near Thandumariamman Kovil
Coimbatore, Tamil Nadu - 641 018, India
Telephone: +(91)-(422)-2526572/ 2200068

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