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Twin Roll Mill

Home Products ; Pigment Testing Equipment Twin Roll Mill

Twin Roll Mill is a useful machine for testing pigment or solvent dye for its use in any polymer from rubber to plastics like LDPE, HDPE, PP, PS, PC ABC, etc. In Electrical Twin Roll Mill, there are two rollers separately heated by electric heaters and can be masticated precisely in precise time at controlled temperature and pigment is mixed &dispersed in it. It is possible to control nip gap by precision screw and knob and can be checked by filler gauge. Display board is provided for digital display of both temperature and timer for masticating time precise testing of standard and sample can be done over this machine. We also provide doctor’s blade to take out the lump of polymer prepared on the mill. From this lump measured piece of sample is taken and is compression molded on hydraulic press to form a fine chip. To avoid time delay separate heating and cooling zones are provided in the press. The die filled with material is subjected to high pressure in the heating zone and then is transferred to cooling zone to solidify under pressure. This gives very finish and flat chip. These are very versatile machines for testing pigment in plastic application and also for testing master batches on lab scale. Today, we are considered as one of the prominent Two Roll Mill Manufacturers and Suppliers.

This is a unique equipment to test pigments in various plastic & rubber applications. It is used in combination with lab scale Hydralic.

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Advance Model

‘Marshal’ - Twin Roll Mill (Advance Model)

Roller size : 150 mm diameter & 300mm working length of alloy steel hardened and ground hard chrome plated diamond Finish Rollers (Mirror Finish)
Roller Speed : Variable Drive for individual rollers so you can set any R.P.M. of both rollers can be set separately. Digital read out for R.P.M. of both rollers.
Friction Ratio : You can set any friction ratio because you can set any R.P.M. of both rollers individually.
Adjustable Nip Clearance : 4 mm to 0.2mm nip clearance. Digital read out of nip clearance will be provided at both ends.
Temp control of rollers : Both rollers are separately heated directly by electrical heaters. Programmable temperature controller for each roller. Maximum Temperature 280^oC. Sensor: PT100. 3 KW Heaters.
Cooling of the rollers : By tap water circulation at the core of the rollers individually for both the rollers.
Gearing materials : Bull gears are made of hardened alloy steel while the reduction gear is Rotomotive/ Bonfligloli, ITALY make gear ‘Compton’ motor. Power: 2 HP, 2 nos. Motors.
Electrical and Controls : Drive motor and heaters are well protected by L & T and Siemens Controls. Temperatures of rollers are displayed over dashboard
Separately. The timer is provided for the rollers, which can control the mastication time.
Emergency safety : To prevent accidental mishap, knee operated safety stop and instant reversal of rollers protection is provided so that anything going inside can come out immediately. One more safety device can be provided at request, over the rollers, which can be operated with a hand touch.
Accessories : We will provide ‘doctors blade’ for scraping the me lt.
Total Power : 7.7 KW

Regular Model

'Marshal’ - Twin Roll Mill (Economic Model)

Model : Laboratory Twin Roll Mill
Roller size : 110 mm dia * 312 mm total length made of alloy steel hardened and ground hard chrome plated.
Working length of Roller : 250 mm min.
Type of structure : Totally enclosed base and top body frame, only rollers are visible.
Roller speed : 24 r.p.m. + /- 0.5
Friction ratio : 1: 1.2
Adjustable nip clearance : 6 mm. Max., 0.35 mm min
Temp control of rollers : Both rollers are separately heated directly by electrical heaters. Programmable temperature controller for each roller. Maximum Temperature 280C. Sensor: PT100.
Cooling of the Rollers : By tap water circulation at the core of the rollers separately.
Gearing materials : Bull gears are made of hardened alloy steel while the reduction gear is BONFIGLIOLI/ ROTOMOTIVE, ITALY make helical gear motor. Power: 2.2-2.5KW
Electrical and Controls : Drive motor and heaters are well protected by L & T/ Siemens controls. Temperatures of rollers are displayed over dashboard separately. The timer is provided for the rollers, which can control the mastication time.
Emergency safety : To prevent accidental mishap, knee operated safety stop and instant reversal of rollers protection is provided so that anything going inside can come out immediately. One more safety device can be provided at request, over the rollers, this can be operated with a hand touch.

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