Mooneyline MV

Our established Mooneyline Viscometer is the perfect choice for all professionals, suited for the modern laboratories at all stages of the rubber production process, efficiently producing accurate data on a variety of elastomeric compounds.

The rotor and die assembly of our Mooney Viscometer are fundamental for producing a controlled test environment of heat and pressure at a constant rotor speed. A sample of test material is placed above and below the rotor and the platens then closed under pressure. By the means of microprocessor based PID control system, the temperature of the dies and sample contained are accurately maintained.

The rotor rotates at a constant speed to two revolutions per minute (2 RPM) and by means of a precise transducer system located below the die assembly, the torque exerted on the rotor head is measured and recorded within the system data files.

The Mooneyline Viscometer has the ability to be programmed for measuring the Stress Relaxation index of material samples. This feature enables the user to measure the decay of viscosity by firmly locking the rotor after the programmed test time has elapsed.

In addition to this the equipment conforms to international standards and meets the requirements of ASTM D1646 performing industry standard tests on a wide range of compounds prior to manufacturing processes, such as:

  • ML (1+X)
  • Scorch
  • Delta Mooney

Mooneyline Viscometer Rotor

Want more speed?
A variable speed option is available offering speeds of  0.1 to 20 RPM.

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ISO No. 289 / ASTM D1646

Test Capabilities
Mooney Viscosity, Mooney Scorch,
Stress Relaxation & Area Under The Curve

As our commitment to you, our Mooneyline Viscometer is complete with everything you need to perform accurate and efficient elastomeric compound testing.

The provided PC comes pre-installed and calibrated with our most advanced data acquisition and analysis Labline software.

  • Microsoft Windows ® OS PC (Monitor, keyboard and mouse)
  • Labline Software
  • All peripheral cables and connectors
  • Essentials spares package
  • Free technical support (one year)

The Mooneyline Viscometer is supplied with the latest computer hardware, pre-installed with our most advanced data acquisition and analysis Labline software for Microsoft Windows ® OS.

The instrument is controlled and operated using our Labline software, to perform a wide range of advanced and standard test to regulate the viscosity of polymers samples at a fixed speed and varied temperatures, in accordance of ASTM D1646.

Labline allows unlimited amount of test data points and  is complete with a calibration module.

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Key Features

  • Automatic Pass/Fail Result
  • Laboratory Statistics
  • Multilingual
  • Simple Instrument & Test Configuration
  • Pre-loaded Test Specifications
  • Produce Trend charts
  • Easy Result Recalculation
  • Report Printing Capabilities
  • Supports ODBC Database Connections:
    – Microsoft Access ®
    – Microsoft SQL Server ®
    – IBM DB2 ®

Data Calculations

Test Points

Minimum (ML)TX
Maximum (MH)TY
Time GateDelta Mooney A
Cure IndexDelta Mooney B
Slope (a)Stress Relaxation Percentage (SR%)
Correlation (r)Stress Relaxation Time (SRsec)
Intercept (k)SR Area (A@%s)


  • Mooney Torque
  • Temperature (Upper)
  • Temperature (Lower)

Units of measurement

  • Time: secs, min:sec, min.dec
  • Temperature: °C, °F
  • Mooney Torque: MU
Standards: ISO No. 289 / ASTM D1646
Die Configuration: Standard
Rotor: Large or Small
Rotation Speed: 2 RPM (0.21 Radians/Sec)
Calibration: Fully Automatic
Temperature Range: Ambient to 225 °C
Temperature Control: 3 Term PID – Control Accuracy ± 0.03 °C
Pneumatics: Filtered Air, Min: 0.41 MPa | 60 psi | 4.14 Bar | 4.2 kg/cm
Electrical: Single Phase 220/240V 50Hz | 110V 60Hz | 350 VA
Weight: 200 kg
Dimensions: 575 mm x 570 mm x 1280 mm (W x D x H)

Mooneyline VSC

It is strongly recommended that samples are prepared with an automatic Volumetric Sample Cutter.

Our Mooneyline VSC provides reliable and consistent sample preparation of shape, size and volume. An additional benefit of this type of cutter is during the cutting process a hole is punched in the middle, ready to accept the rotor.

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