Ratnakar EnterprisesRatnakar Enterprises

Electronic Universal Testing MachineUniversal Testing MachineRockwell System Hardness testerBrinel System Hardness Tester
Imapct Testing MachineTorsion Testing MachineDynamic Balancing MachinesBelt Drive Balancing Machine
Compression Testing MachineTensile Testing Machine  

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We offer to our clients a wide range of high accuracy based testing & balancing equipment, which successfully meet the various product testing and calibration needs of different industrial applications. With the expertise to manufacture them with customized finishes, the range we offer include:



Electronic Universal Testing Machine

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Electronic Universal Testing Machine

We offer our customers with electronic universal testing machine, which are specially designed for testing metals and other materials under tension, bending, compression, transverse and shear loads. This machine also enable us to conduct hardness test and is available with digital readout which ensures convience in reading. Its specifications are:

•Available with loading accuracy as high as +1 %
•To suit a wide range of material straining at variable speeds.
•Optional X - Y plotter / printer, which facilitates study of the material behavior.
• For quick performance motor driven threaded columns are provided.
• To facilitate rapid fixing of test specimen, we provide feature of minimum adjustment of middle cross-head.
•Wide range of accessories, including load stabilizer helps in efficient working.
•We offer large effective clearance between columns, which helps in testing of structures and specimens.
•Ease of operation.
•Rigid constructionof robust straining frame.
•Safety in operation is enabled due to safety devices.
•Pressure transducer is fully enclosed and protected.
•Offered with optional serial port, which transfers data to computer for analysis /storage evaluation etc.




Universal Testing Machine

We offer our customers with Universal Testing Machine which is designed to perform tensile, bending and shear tests on most widely varying materials. Its has high reading accuracy due to large size and design of the dial. Its specifications are:


• Calibrated as per B.S. 1610 and I. S. 1828 – 1975 standards.
• Comply with grade 'A' of B.S. 1610 : 1964 & grade 1.0 of I.S. 1828 – 1975.
• Available with loading accuracy which is as high as +1% below 20% of the load range to the maximum permission error of 0.2% of the full load reading.
• Straining rate is provided to enable covering a wide range of materials.
•Offered with continuous roll type load elongation recorder.
•Facilitates easy operation.
•Load measuring system is properly protected.
• Provided with wide range of standard and special accessories including load stabiliser for efficient working.
• Strong straining frame.
• For enabling easy and apid fixing of test specimen clients are offer with motorised up/ down movement of lower crosshead.

Universal Testing Machine

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Rockwell System Hardness tester

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Rockwell System Hardness tester

We provide our customers with high performance oriented Rockwell System Hardness testers, which are suitable for testing hardness of metals and alloys of all kinds: hard/soft/flat/round or irregular in shape. Available in different model whichare manually operated and meet the demands of schools, laboratories etc. These testers strictly conform to IS : 3804-1966,BS : 891 parts I & II ASTM : E18 for Rockwell test and IS : 2281- 1968, BS : 240, ASTM : E10 for Brinell test.

Rockwell System Hardness Tester (Model : RASN)

• It is suitable for Rockwell Tests.
• Manual operation.
•External dialing enables test force.
• Provided with auto zero setting dial gauge.

Rockwell system hardness tester (Model : RASN (T))

• Beneficial for Rockwell Superficial tests.
• Opearated mannually.
• External dialing enables test force selection.
• Offered with auto zero setting dial gauge.

Rockwell system hardness tester (Model : RASN (E))

• Digital Hardness Tester is provided for Rockwell tester.
• External dialingenables test force selection.
• Position is set using led bar indicator.
• Reliable membane switches ensures proper key board entry for GO - NOGO /scale / dwell time selection.
• Provided with lage scale display with 0.1 rockwell resolution.
•To get results indicating serial number of tests, hardness value and high / good indication parellel output for conceding dot matrix is offered.

Additional Accessories:

We also provide our customers with additional accessories as per customers needs. These include:

•1/8", 1/4", 1/2" dimension based steel ball indentor.
• 200mm dia testing table.
•Testing Table with 70 mm dia and with 'V' groove for round jobs, 10 to 80 mm dia. vari - rest to support odd shaped jobs, for end quench test jominy test fixture if offered.
•Short nib diamond Indentor is prefered for Gooseneck Adaptor No.1, & others.




Brinel System Hardness Tester

We offer our customers with premium quality brinel system hardness testers, which are most suitable for production testing. These machines are designed to measure hardness of castings, forgings, other metals and alloys of all kinds, hard o soft, whether flat, round or irregular in shape. Available in different models such as Model RB-3000 (J), RB-3000(H), RB-3000, these are precision engineered confirming to IS: 2281-1968 , BS:240 & ASTM: E 10. RB-3000.

Some of its specifications are:

Manual Brinel System Hardness Tester (Model - RB 3000 (J))

• It is a simple machine with mechanical design.
•Loading, unloading operation manual operation is required for loading and unloading through an operating lever.


Hydraulic Brinel System Hardness Tester (Model - RB 3000 (H))

•For effortless loading unloading operation clients are offered with machine designed with a hydraulic power pack and control circuit.
• A dial gauge in front measures depth of ball penetration. To facilitate production testing, a dial gauge in front measures depth of ball penetration is provided.

Optical Brinel System Hardness Tester (Model - RB 3000 (O))

•An 'Optical device' with 14 X magnification is provided in front to project dia of ball impression on glass screen with 0.01 mm accuracy with a micrometer measuring system.
• The indentor swivells & projects dia of ball impression after unloading operation, which saves additional time for measurement of ball impression and helps in getting real Brinell number on production testing.

Brinel System Hardness Tester

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Imapct Testing Machine

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Imapct Testing Machine

We offer our customers with two types of impact testing machine i.e impact testing m/s and digital impact testing m/s. It is also provided with manual brake for stopping pendulum oscillation after sample failure. Some of its specifications are:

IMAPCT TESTING M/C.:

•Offered with large rectangular dial with inner scale for izod and outer scale for Charpy test.
• By a common latching tune, the pendulum is supported separately in two positions.
•For safetyclients are provided with front guard.
•Separate strikers are offered for lzod & Charpy test.

DIGITAL IMPACT TESTING M/C.

•Superior electronic digital display.
•Offered with interchangable strickers for charpy and izod positions.
•Izod and chrpy positions feature pendupum locks.
•Safety guard for protection purpose safety guard is available.
•for stopping pendulum a braking arrrangement is provides to clients.
•Available with optional printer interface.




Torsion Testing Machine

We offer our customers with premium quality torsion testing machine, which is used for conducting torsion and twist on various metal wire, tubes and sheet material. Some of its specifications are:

• Torque measurement is enabled by pendulum dynamometer system, torque ranges can be adjusted by adding weights the torque ranges can be adjusted.
• Can be applied to specimen by using geared motor through gear box.
• Autographic recorder depicts the relation between torque and angle of twist.

Torsion Testing Machine

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Dynamic Balancing Machines

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Dynamic Balancing Machines

We offer to our clients dynamic balancing machines, which help in the checking of mass distribution of rotor and if necessary, adjusting it to ensure the vibration of the journals and on the bearings is within specified limits at frequency corresponding to the service speed.

Its specificatons are as follows:

• Provide with fully indigenous design.
• Safe and easy handling.
•To provide solution for balancing problems, a electronic unit is availed.
• For every accuracy requiremen there is legible readout systen which enables proper functioning.




Belt Drive Balancing Machine

We offer our customers with highly effficient belt drive balancing machine, which helps to eliminate the error due to driving coupling and adapters. These machines are most suitable for the components like armature of FHP motors, small impellers, grinding spindles, turbo chargers etc.

Features:

• Electronic measuring systems:

The electronic circuitry used is built is built in with Plug in type cards. All components used are of industry standards and are carefully selected for trouble free mechanism. Variety of options for measuring system are available to suit various rotors like direct indication of amount on analogue meter and anagle with bright light, direct indication of unbalance and angle on digital meters.

• Optional mechanical attachment:

We also provide with optional mechanical attachment such as Vertical and / or horizontal drilling attachment, revetting, under belt dirve etc.


We provide our customers with hard bearing vertical balancing machines, which are permanently calibrated machines in two models:

• RHV series which are single plane machines.
• RHVT series machines.

These machines are considered most suitable for balancing the components. which do not have their own journals. The components include Turbine Discs, Impellers, Grinding wheels, pulleys etc.


Some of its specifications are:

•Built in electronc compensation in measuring systems for compensating the shift of component journal axis from the spindle axis.
•Unbalance resolved in components at 120, 90, 60 etc.
• We provide with microprocessor based systems.
•Any other requirement as per customer specifcations.

Mechanical attachments:

These machines also have mechanical attachments which enables to incresase productivity. These are:

•Drilling attachments.
•Pneumatic job clamping.
•Revetting
•Any other tooling system as per clients specification.

Belt Drive Balancing Machine

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Compression Testing Machine

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Compression Testing Machine

We offer our customer with premium quality compression testing machine, which is designed to test metals and other materials such as refractory bricks, rock samples moving props, rubber parts etc. Under compression, bending, transverse and shear loads. This also enables hardness test on metals to be conducted.
Some of its specifications are:
  • Loading accuracy is of +-1%.
  • Tto suit a wide range of materials straining at variables speed is provided.
  • •To enable the study of the behaviour of materials, continious roll autograph recorder if provided.
  • To facilitate rapid fixing of test specimen, motor driven geared shaft is availed for quick and effortless adjustment of cross-head.
  • The large size cdesigh of the dial enables high resding accuracy.
  • Offered with additional range of standard and special accessories which includes load stabilizer.
  • Large effective clearance between columns enables testing of standard specimen as well as structures.
  • Simple controls for easy operation.
  • Robust straining frame of robust construction.
  • Sage operation is fulfilled by means of safety devices.
  • It is closely controlled for perfect accuracy and calibration during every stage of manufacture.
  • Every machine id is calibrated over each of its measuring ranges which is in accordance with the procedure laid down in British standards i.e 1610-1964 IS 1828-1975.




Tensile Testing Machine

We offer our customer with premium quality tensile testing machine, which are specially designed to give better stability and service for Longer period. Special care has been taken to accommodate latest technology to obtain optimum utilization and Simplicity to operation.
Some of its specifications are:
  • Specially designed for conducting Tensile & compression test on various Products like Wires, Tubes, Sheet material, Textile material, Rubber, Plastic, Cables, Conductors, leather, asbestos paper, Plywood, Metals etc.
  • The force measurement is measured by penululam dynamometer system.
  • Available with control devices for safety purposes
  • Autographic recorder provides relation between load Vs Elongation.
  • The accuracy of the measurement are within 1% above 1/10 th of the scale value as per IS B.S., ASTM, DIN or ISO standards.

Tensile Testing Machine

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