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       Material Testing Instruments
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Two Roll Mill with VFD 1 s

Two Roll Mill (Variable Roller Speed)

Model Number: SSI 511 TRPVS

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 TRPVS (Two Roll mill for PVC with variable roller rotation speed)
Roller Size : 6″ Dia x 12″ Length
Heating : ‘U’ Shaped Heaters embedded in Rollers
Temperature Control : Through Energy Regulator
Motor / GearBox : 3 Hp 440VAC, 3 Phase Motor, Standard Gear Box
Roller Material : Hardened Steel, Chrome Plated
Roller RPM Control : 0-30 RPM using Motor Drive
Power Requirment : 440V Three Phase,
 Material Suitable for : PVC and allied Material
Delivery  : 6 to 8 weeks
Packing   : One Wooden Box,
Dimension  : 5 x 4 x 4 (LBH in feet) 350 Kg
Alternate Model : SSI 511 TRPFS (Two Roll mill for PVC with fixed roller rotation speed)



Instrument Principle

Uniform mixing of two or more components to make a homogeneous mixture is vital to make samples for testing. The Two Roll Mill with its two heated rollers, rotating in opposite directions, at slightly different speeds is an ideal machine for such a work.

The final 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 Ratio


The Instrument consists of following:

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

       Roller Size: 6″ dia, 12″ Length.

       Temperature Control : Using two Energy Regulators one for each roller.

       Heater: Heating by especially designed U shaped heaters.

       Motor: 3 Hp, 440 VAC,  3 phase.

       Gear Assembly : to drive the rollers in opposite directions. 

       Control: Forward Reverse Switch and power cord.

       Spatula for mixing the compound.

       Emergency Switch to shut off motor in case of emergency


This Model is suitable for PVC and allied material which require heating for melting and mixing. Not suitable for rubber materials which generates heat during mixing.