Industrial Mills

TECHNO DESIGNS offers ball mills in various styles such as continuous, batch, granite lined, Jacketed and non-jacketed. The unique features of the ball mills are its assembly and the workmanship of all the machine parts.

The ball mill supports are from fabricated plate section and the base where the bearing blocks are fixed are machined. This avoids the use of packing and misalignments whichnormally result in bearing failure. The bearings provided are heavy duty double spherical roller type to take care of the requisite load. The girth gears an made from cast steel and have a hardness of 300 BHN and are cut on accurate hobbing machine to give long life.

The continuous ball mill comes in two standard styles :-

1)  End peripheral discharge type
2)  Overflow type

Pebble Mills

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SIZE	VOLUME	MILL BASE	THINNED DOWN	MOTOR H.P.	GEAR SIZE
2' X 2'	200 Ltrs	60 Ltrs	200 Ltrs	2 H. P.	2'/4" NU.
3' X 3'	570 Ltrs	180 Ltrs	600 Ltrs	3 H. P.	3" NU.
4' X 4'	1350 Ltrs	405 Ltrs	1215 Ltrs	7.5 H. P.	4" NU.
5' X 5'	2650 Ltrs	795 Ltrs	2385 Ltrs	15 H. P.	5" NU.
6' X 6'	5000 Ltrs	1500 Ltrs	4500 Ltrs	25 H. P.	7" NU.

Steel Ball Mills with Jacket for Water Cooling

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SIZE	VOLUME	MILL BASE	THINNED DOWN	MOTOR H.P.	GEAR SIZE
2' X 2'	200 Ltrs	60 Ltrs	200 Ltrs	2 H. P.	2'/4" NU.
3' X 3'	570 Ltrs	180 Ltrs	600 Ltrs	3 H. P.	3" NU.
4' X 4'	1350 Ltrs	405 Ltrs	1215 Ltrs	7.5 H. P.	4" NU.
5' X 5'	2650 Ltrs	795 Ltrs	2385 Ltrs	15 H. P.	5" NU.
6' X 6'	5000 Ltrs	1500 Ltrs	4500 Ltrs	25 H. P.	7" NU

The feed material is fed to the centre shaft and discharged at the other end. Various types of grinding media are used such as steel balls, ceramic balls river pebbles etc. for different applications. The ball mills are generally used in manufacture of paints, pigments and micronizing extenders.

TECHNO DESIGNS has already made ball mills with gross volumetric capacity of 16000 ltrs. Higher sizes are available. For detailed quotation please call on us.

The above table indicates standard models, available with TEFC or Explosion proof motors. The mills are available in mild steel or stainless steel, with manganese or chrome steel liners or with granite or ceramic lining.

TECHNO Bead Mills are capable of producing finely dispersed finished product from directly charged raw materials.

Three operations of premixing, grinding and dispersing are combined within one machine. The machine operates on the principle of shear created within the mass differential of product and grinding media. The grinding medium is moved to the vessel wall by the action of the specially designed disc impeller. This constantly moving mass of grinding media is force-flowed up the side of the vertical vessel wall, the action continuing until the vortex spiral directs the media movement towards the agitator shaft for another continuous cycle of events.

The main grinding shell is jacketed for cooling. This is a very speedy operation wherein major products are achieved to the respective gauges in about 1-1/2 hours time.

The applications are Synthetic enamels, Water based primers, Red oxide primers, Artist colours, Flexography inks, Industrial finishes.

Technical Specification

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BEAD MILL	CAPACITY	WORKING CAPACITY	MOTOR KW
TD/ 50	50 LTRS	18 LTRS	2.2
TD/100	110 LTRS	37 LTRS	5
TD/200	200 LTRS	80 LTRS	7.5
TD/300	300 LTRS	120 LTRS	11
TD/500	500 LTRS	200 LTRS	22

Our range of Sand Mills is offered to our clients in two models that includes Horizontal and Vertical Mills. These are manufactured using high grade material such as C.S, SS 304, SS 316 and are offered in capacities from 3 liters to 125 liters. The Sand Mills offered by us finds application in dyes, pigments, agrochemicals, polymers, paints, pharmaceutical products and specialty chemicals.

Usage:

• Grinding of material
• Size reduction of the material
• Continuous dispersion and fine wet grinding of high to low viscosity pumpable fluids

Principle:

The energy required for grinding is given by rotating the sands by means of discs fixed on the agitator. The grinding sands transfer the energy to the material, where high shear and high peripheral velocities reduce the particle size of the material to be ground.

Construction:

It consists of a Horizontal/Vertical Cylindrical jacketed shell with a central shaft on which a number of discs are fixed. The shell is provided with a cooling jacket and the shaft end is sealed by double product/service mechanical seal. The feed pump and the electric panel is mounted on the main machine with all the required instrumentation and controls. The grinding sands are separated from the material by means of a gap separator or by a wedge screen.

CONTINUOUS SAND MILL

Techno Designs offers continuous sand mill for liquid grinding of Pastes, Paints and Emulsions of various solid content and viscosities.

The continuous sand mill works on the principle of sand grinding in which a homogeneous mixture of pigment slurry is pumped through a cylindrical shell which is subjected to intense agitation. During the upward passage, the mill base is caught and ground between the sand particles, a strong shearing action which effect the dispersion of the pigment into the vehicle results. The agitation of sand particles is produced by flat disc impellers, which revolve at high rate of speed within the sand grinder.

Techno Designs offers Sand. Mill of various capacities starting from 15 ltrs. to 100 ltrs.

We offer a wide range of Ball Mills that are recognized as highly versatile grinding equipment. These are used for purposes such as, powder grinding and wet grinding of various material. Catering to the needs of pigments, paints and minerals industries, our range is best known for excellent performance and easy operability. The Ball Mills manufactured by us are highly acknowledged for its assembly, wherein the shaft run outs for mills of 20000 liters capacity is less than 200 microns. The support bases are fabricated from plate sections; and the top plate where the bearings rest are planed to give a perfect seating. We have successfully manufactured mills with gross volumetric capacity of 25000 liters with drive motor OF 425 H.P.

We offer a variety of models in our range of Ball Mills. These include:

• Batch
• Continuous
• Jacketed
• Non-jacketed

Our range of Continuous mills are offered in different models that include End Peripheral Discharge Type, Trunion Discharge Type and Air Swept Type. The Jacketed mills offered by us are used for cooling and heating applications.