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       Material Testing Instruments
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Two roll mill Digital

Two Roll Mill – Digital Temperature Controller

Model Number: SSI 511 TRPFSD

Two Roll Mill is used for mixing two or more compounds in a homogeneous mixture. This Mixture is then molded into samples for further testing.

Salient Features  
Model : SSI 511 TRPFSD (Two Roll Mill for PVC with Fixed roller rotation speed, Digital Temperature)
Roller Size : 6″ Dia x 12″ Length
Heating : ‘U’ Shaped Heaters embedded in Rollers
Temperature Control : Through Digital PID Controllers on both rollers. 
Motor / GearBox : 3 or 5 Hp III Phase Motor, Standard Gear Box
Roller Material : Hardened Steel, Chrome Plated
Power Requirment : 440V Three Phase
Delivery : 6 to 8 weeks
Packing : One Wooden Box
Dimension : 5 x 4 x 4 (LBH in feet) 350 Kg
Alternate Model : SSI 511 TRPVS (Two Roll Mill for PVC with Variable Roller rotation Speed)
: SSI 511 TRPFS (Two Roll Mill for PVC with Fixed Roller rotation speed)


Instrument Principle

For preparing test sample from two or more materials, they have to be mixed homogeneously. The Two Roll Mill with its two heated rollers, rotating in different directions, at slightly different speeds is an ideal machine for such a work. The test samples can then be obtained from the sheet by using Hydraulic Hot Press, Dumb-bell Dies etc.

Two Roll Mill is available in various models for specific customer requirement. Various Models are
  1. For PVC (With Heating only)
  2. For Rubber (with Water Cooling only)
  3. For PVC and Rubber (with heating and water cooling)
  4. Rollers with Variable RPM
  5. Rollers with Variable RPM and Friction Ration 


The Instrument consists of following:

   Two rollers mounted on a sturdy frame, rotating in different direction at slightly different speeds.

   Roller Size:  6 dia, 12 Length.

   Two PID Controller for heating control one for each roller. 

   Heating by especially designed U shaped heaters.

   One 440 V III phase motor with gear assembly for rotating the rollers.

   Start / Stop switch and power cord.

   Two Emergency Switches, one on panel and one on knee height to reverse the motor in case of any emergency. 

   Guard plates and funnel on rollers to prevent accidental insertion of operator hand between rollers. 

   Spatula for mixing the compound.