Oscillating Disc Rheometer
Moving Die Rheometer
Mooney Viscometer
Abrasion Testing Machine
Bond Peel Adhesion Test
Compression Set Device
Impact Tester
Shore Hardness Tester
Hardness Tester(IRHD)
Specific Gravity Balance
Spring Testing Machine
Tearing Strength Tester
Thickness Testing
Resilience Tester
Coeffecient of Friction Tester
Spark Tester
Salt Spray Corrosion Chamber
Demattia Flex Tester
Ross Flex Tester
Specimen Cutting Press
Specimen Cutting Dies
Introduction
Moving Die Rheometer(MDR) is a testing equipment which analysis the cure characteristics of Rubber Compound & monitors the processing characteristics as well as physical properties of the material. It is based upon international technology. It is the only instrument in the rubber industry which helps to choose right ingredients and its appropriate dose to meet the end products "Rishikesh make" Moving Die Rheometer is a Rotor less Instrument in which Die oscillate and measures the change in stiffness of rubber compound compressed between two heated dies. The MDR generates 3 curves S', S" and Tan Delta.The MDR produces a cure curve labeled S' which is similar to the ODR curve.

Definition of S' and S"
S' is called the storage modules ,elastic modulus or in phase modulus. S" is called the loss modulus, viscous modulus, or out-of-phase modulus. All of these terms have been used to mean the same thing. The unit of S' and S" in the product family instruments are in lbs. These are units of torque. They can also be in dnm. Which are also torque units.

Tan Delta
The Tan(Delta) is computed from the ratio S"/S' or loss of modulus divided by storage modulus. The smaller the Tan delta, then the more viscous the material.

Application of S"
There have been many research articles which discuss the benefits of using S"(Loss modulus) or Tan (Delta). A relationship may exists between dynamic properties and processability (e.g. die swell) of uncured compound. After cure, the loss modulus can indicate whether a compound will meet some special application. For example, the rubber used in an automotive engine mount should have high Tan(Delta). S" in order to dampen vibration. On the other hand, the compound used in a rubber band needs a low Tan Delta .

Application And Information Available
  Elastic Modulus S'   Viscous Modulus S"
  Tan Delta   Cure Rate
  Tan Delta@ML   Tan Delta@ MH
  Ts1,Ts2,Ts5,Tc10,Tc50,Tc 90   OC,End Temp.Trend,Reversion,
  Display of S', S" along with Tan Delta   Cp, Cpk Values
  Computer Controlled Automated testing   Rotor Less
  Repeatability-Continues repeated testing   


Specification Advance Testing Technology

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