Rubber Mooney Viscosity Tester
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The Rubber Mooney Viscosity Tester measures the viscosity of rubber under controlled temperature and shear conditions. A rubber sample is loaded into the viscometer cavity and preheated, then the rotor applies shear torque to the sample. The sample produces a resistance moment that is displayed either via a dial indicator or a connected computer, giving the Mooney viscosity value. This test is essential for evaluating processing properties and consistency of rubber compounds.
Applications
(1) Natural rubber and synthetic rubber: evaluation of processing viscosity for tire and automotive parts manufacturing.
(2) Rubber compounds: quality control during mixing and formulation.
(3) Footwear midsoles and outsoles: monitoring rubber flow and processability.
(4) Industrial rubber products: hoses, gaskets, belts, vibration dampers.
(5) Laboratory research: R&D on new rubber formulations and additives.
(6) Production monitoring: ensuring consistency of unvulcanized rubber batches.
Standards
(1) GB/T 1232 — Unvulcanized rubber: Determination of Mooney viscosity
(2) GB/T 1233 — Rubber compound: Determination of initial vulcanization characteristics — Mooney viscometer method
(3) HG/T 3242-2017 — Rubber Mooney viscometer
(4) ISO 289 — Unvulcanized rubber: Determination by shear disc viscometer
(5) ISO 667 — Rubber compound: Determination of initial vulcanization characteristics — Mooney viscometer method
Technical Parameters
| Item | Specification |
|---|---|
| Measurement & control temperature range | Room temperature – 200℃ |
| Torque measuring range | 0 – 100 Mooney units |
| Calibration accuracy | 100 ± 0.5 Mooney units |
| Rotor speed | 2 ± 0.02 RPM |
| Measurement points | 0 – 200 points |
| Ambient temperature | 0 – 35℃ |
| Relative humidity | <80% |
| Test pressure | 11.5 kN ± 0.5 kN |
| Air pressure | 0.45 – 0.6 MPa |
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