Thorque Rheometers
What is the Torque Rheometer

Torque rheometer is an instrument for the study of material flow, plasticizing, heating, and shear stability. Torque rheometer is widely being used research and production for the study of polymer engineering and processing reference as an internal mixer.

When material are added into the chamber for testing, two counter rotating rotors of different speeds will mix the material with forces of shearing and squeezing. The torque sensor detest the reaction force on the rotors and a computer will record the changes of the torque along the time line.

Comparing to a viscosity meter, which is also for testing the material flow behaviors, the torque rheometer provides a method of a dynamic measuring method in a condition that is closer to the real processing condition. The torque rheometer records the rheology characters of polymer composite, polymer alloy, cross linking polymer, and thermoplastic elastomer, which very useful for the study of polymer material for its stability in a dynamic condition with changing rotor/screw speed. The torque rheometer is more flexible, convenient, easy to use, and time saving for data recording and processing.


Functions of Torque Rheometer

  • Recording torque curve during material extrusion using highly sensitive sensor
  • Study material structure, rheological behavior, and processing behaviors through torque changes

Applications of Torque Rheometer

  • Development of polymer material formula
  • Material performance and quality testing
  • PVC melt index
  • Plasticize absorption test of PVC dry blend
  • Heat and shear stability of thermo-plastic material
  • Performance testing of cross linked XLPE
  • Flow and frozen behavior of the cross linked polymer material.

Features of Torque Rheometer

  • High precision torque transducer
  • Testing condition close to real processing condition
  • High measuring precision, recognize minor changes in material structure and component
  • Uniformed frame, space saving
  • Dual overload protection, both mechanical and electrical
  • Easy operation, easy maintenance and cleaning
Specifications of Extrusion Capillary Rheometer

Model

 

RTOI-55

RTOI-200

RTOI-300

Mixing chamber volume

cm3

55

200

300

Speed

Rpm

200

Rotor speed ratio

Nm

2:3

Torque measuring range

 

0-200

0-1000

0-1000

Torque tolerance

 

0.5% F.S

Max. temp.

0C

350

Temp. control accuracy

0C

±1

Heating/cooling method

kW

Electrical heating / Air cooling

Driving power

kW

3

7.5

7.5

Weight

kg

300

700

700

Size (L×W×H)

mm

1250x690x1700

1500x900x1700

1500x900x1700