Product Description

The XDR® can easily be converted to a Mooney Viscometer by interchanging a few key components. The cure meter central shaft and bearing system is replaced by the Mooney Viscometer conversion module.

The Mooney Viscometer module consists of the central shaft, bearings, sample ejector, and auto dead weight calibration system. This module is completely preassembled for easy conversion. The same force transducer and connecting links are repositioned to measure the reaction torque sensed by the drive motor as a result of the changing viscosity of the test sample.

The Mooney Viscometer die and rotor are direct replacements for the corresponding elements of the cure meter. These few simple steps converts the XDR® from an Oscillating Disk Rheometer or a Moving Die Rheometer to a Mooney Viscometer. The XDR® Mooney viscosity / stress relaxation and Mooney scorch tests conform to ASTM D1646.

“… in the Mooney Viscometer configuration, the sample is sealed between the upper and lower die cavities, surrounding the rotating flat disk rotor. This provides precise measurements of viscosity, scorch, cure rate, and improves precision and accuracy.”

XDR® Mooney Viscometer: Features & Benefits Fill 118 Copy 1 Created with Sketch.


  • Enhances vulcanization, viscosity, and cure characteristics;
  • Standard dies and rotor;
  • Stress relaxation capabilities;
  • Convertibility to an MDR or ODR reduces initial and future investments;
  • Meets ASTM D1646, ISO R289 and BSI 1673.


  • Modular design allows conversion to an ODR or an MDR;
  • Power rotor ejector eases sample insertion and removal;
  • Modular design reduces maintenance cost & down time;
  • Reduced test times with high watt heaters;
  • Replicate historical test results;
    Enhanced scorch determination & stress relaxation capabilities.
XDR® Mooney Viscometer: Specifications Fill 118 Copy 1 Created with Sketch.
  • Torque:
    • 0.1 to 200 Mooney Units
  • Selectable Test Times:
    • 0.0 to 99 minutes
  • Selectable Temperature Range:
    • Ambient to 225 C°
  • Angular Displacement:
    •  ± 0.5°, 1°, 3°, 6° (selectable)
  • Weight:
    • 160 kg (352.8 lb.)
  • Space Requirements:
    • Instrument: 610 x 610 x 1220 mm (24 x 24 x 48 in.)
    • Computer: 300 x 610 x 710 mm (varies) (12 x 24 x 27 in.)
    • Monitor: 410 x 410 x 410 mm (varies) (16 x 16 x 16 in.)


  • Computerized data acquisition & analysis system;
  • Viscometer Module complies with ASTM D1646, ISO 289 (replaced ISO/R 289), BS ISO 289-4, BS 903-A59 & BS 903-A58 (replaced BS 1673);
  • Rheometer Module complies with ASTM D2084, ISO 3417, & BS 903-A60 (replaced BS 1673);
  • MDR Module is compatible with ASTM D5289 & ISO 6502;
  • Microsoft® Windows Operating System;
  • Pentium® Processor & Intel® chipset;
  • Computerized PID temperature management systems;
  • Automatic system calibration;
  • Computerized torque measurement system;
  • Computerized calibration and verification (no mechanical adjustments necessary);
  • Automatic mechanical deflection corrections;
  • Superior ability to detect differences in compounds and raw polymers;
  • Raw data stored for easy retrieval or transfer;
  • Standard and User defined test parameters;
  • Real time display of test data and parameters;
  • Selectable presentation of data in printed, graphed or overlay formats;
  • Real Time Plot & Digital display of:
    • S’, S”, and S* Data
    • Loss Angle Data
    • Temperature, All Dies
    • Temperature Set Point
  • Digital display of:
    • Test Mode
    • Operation Mode
    • Test File Name
  • Printed Data Output Options:
    • Single Test
    • Overlay Multiple Tests
    • Overlay Historic Tests
  • Display Data Output Options:
    • Test In Progress
    • Historic Single Test
    • Overlay Historic Multiple Tests
    • Apply different parameters to historic results for an “if—then—else” analysis.
XDR® eXchangeable Die Rheometer: Module and System Pricing Fill 118 Copy 1 Created with Sketch.
XDR® Individual Modules
ODR (heated rotor standard option)
Mooney Viscometer
XDR® Module Combinations
MDR & ODR Modules
MDR & Mooney Modules
ODR & Mooney Modules
XDR® Complete
Mooney, MDR & ODR Modules
Lease Options Available
Please visit the ODR and MDR pages to learn more about the flexibility of the XDR®. Detailed technical aspects of the XDR® are examined at length in the article titled “Innovations”.

Index Terms: Fill 118 Copy 1 Created with Sketch.

ASTM D1646, D1646, Standard Test Methods for Rubber — Viscosity, Stress Relaxation, and Pre – Vulcanization Characteristics (Mooney Viscometer), Mooney Viscometer, viscometer, curing characteristics, Mooney, stress relaxation, viscosity, vulcanization characteristics, 83.060, rubber cure, shearing disk, viscosity, pre-vulcanization characteristics, Delta Mooney value, defined shear rate, Oscillating Disk Rheometer, ASTM D2084, D2084, Standard Test Method for Rubber Property – Vulcanization Using Oscillating Disk Cure Meter, compounds, ODR, oscillating disk cure meter, oscillating disk curemeter, oscillating disk rheometer, vulcanization characteristics, rheometer, ASTM D5289, D5289, Standard Test Method for Rubber Property — Vulcanization Using Rotorless Cure Meters, Moving Die Rheometer, MDR, curemeters, rotorless cure meter, rotorless curemeter, ASTM D6601, D6601, Standard Test Method for Rubber Properties – Measurement of Cure and After – Cure Dynamic Properties Using a Rotorless Shear Rheometer, dynamic properties, loss modulus, rotorless oscillating shear rheometer, storage modulus, rubber, rheology, cure behavior, ISO 6721, ISO 3417, ISO 6502, ISO/R 289, ISO 289, BS 903, BS ISO 6502, BS ISO 289-4