KR-102 Precision Mooney Rotational Viscometer for Unvulcanized Elastomers

Additional information

Model

RT-102

Control temperature range

Normal temperature~200℃

Temperature display resolution

0.01℃(0.1 ℃ common type of imported temperature controller temperature)

Temperature control accuracy

±0.3℃

Calibration accuracy

Mooney value ±0.5

Rotor speed

2 rotation/ min ±0.02rotation/ min

Torque range

Torque range

Torque resolution

Mooney value 0.1

Print content

Date, time, temperature, Mooney scorch curve and MV,T5,T35,T3,T18,@15,@30

Power

50HZ, 110/220V

RT-102 Rubber Mooney Viscometer

It is for rubber vulcanization index determination, where the sample is subjected to a certain temperature and pressure, and the rotor applies a certain degree of rotation torque to the sample, resulting in a certain degree of shear stress, and the rubber anti-shear torque is measured. Is reclaimed rubber, rubber, wire and cable industry indispensable instrument.

Product Details:

Product Introduction

The KR-102 Mooney viscometer is professional lab rheology testing equipment engineered to measure Mooney viscosity and scorch characteristics of raw rubber, synthetic elastomers, recycled rubber and masterbatch blends. Under standardized constant temperature and compression pressure, a precision rotor creates stable shear force inside a sealed heating cavity; the equipment captures real-time torque resistance of rubber compounds to output core indicators including minimum viscosity (MV), scorch time T5/T35 and stress relaxation curves.
Fully compliant with GB/T1232, GB/T1233, ISO289, ISO667 and ASTM D1646 global test standards, this all-in-one unit serves as core QC equipment for tire factories, cable compound workshops, reclaimed rubber manufacturers and polymer R&D labs, supporting incoming raw material inspection, batch consistency monitoring and new rubber formula development.

 

 

Applicable Test Materials & Industrial Application Fields

Tire & Automotive Elastomers

Natural rubber, SBR, BR tire tread compounds, EPDM sealing rubber, vibration damping elastomers; monitor raw rubber viscosity consistency and predict premature vulcanization risks during extrusion/molding.

Wire & Cable Compounds

Low-smoke halogen-free insulating rubber, conductive elastomer blends, cable sheath materials; screen processing fluidity for continuous extrusion production.

Recycled & Modified Rubber

Devulcanized reclaimed rubber, filler-filled composite rubber, color masterbatch base stocks; evaluate viscosity changes after recycling treatment.

R&D & Third-Party Testing Labs

University polymer material labs, CNAS accredited testing institutions, rubber factory QC departments; standard specimen testing for new formula screening and product certification.

 

 

Core Competitive Advantages

  1. Ultra-Stable PID Constant Temperature Control System
    Independent upper & lower die heating loops paired with high-precision platinum thermal sensors deliver temperature display resolution up to 0.01℃, with long-running fluctuation controlled within ±0.3℃. Rapid uniform heat distribution eliminates local hotspots that distort viscosity readings, ensuring isothermal test environments matching international standard requirements. Adjustable working temperature spans ambient up to 200℃ to cover all common rubber compound testing demands.

    2.Standard 2rpm Constant-Speed Precision Rotor Assembly

    High-stability stepper drive system locks rotor rotational speed at 2 revolutions per minute with deviation less than ±0.02rpm. The knurled alloy rotor maximizes friction contact with rubber samples to avoid slippage during shear testing. Full torque calibration achieves Mooney value accuracy within ±0.5, and torque resolution reaches 0.1 Mooney units to capture subtle viscosity changes of soft/hard elastomers.

    3.Sealed Anti-Leakage Heating Cavity Structure

    Mirror-finished alloy upper and lower dies form fully enclosed test chamber to prevent molten rubber overflow during high-temperature testing. Quick-disassembly die design simplifies residue cleaning when switching different rubber formulas, effectively avoiding cross-contamination between batches and cutting sample preparation downtime.

    4.Intelligent PC Data Acquisition & Analysis Software

    Matching dedicated analysis program automatically records full-process viscosity curves, calculates all standard scorch parameters (T3, T5, T18, T35, ML, MS) and stores complete test logs with timestamps. One-click report export supports batch data comparison and long-term quality archive management; curve overlay function enables direct performance contrast of multiple rubber formulations.

    5.Safe Integrated Cabinet & Mobile Layout

    Fully enclosed high-temperature test area with transparent heat-resistant protective window prevents operator scalding. Side-mounted emergency stop button instantly halts all rotation and heating functions in abnormal conditions. Lockable universal casters allow flexible relocation between lab benches and production QC stations; compact cabinet layout saves valuable laboratory floor space.

    6.Low Maintenance Durable Transmission Parts

    Precision reduction gearbox and wear-resistant drive bearings ensure thousands of hours of continuous testing without frequent replacement. Modular electrical layout simplifies daily inspection and spare part swapping, reducing long-term equipment operation costs for factories and testing institutes.

Technical parameter:

Model KR-102
Control temperature range Normal temperature~200℃
Temperature display resolution 0.01℃(0.1 ℃ common type of imported temperature controller temperature)
Temperature control accuracy ±0.3℃
Calibration accuracy Mooney value ±0.5
Rotor speed 2 rotation/ min ±0.02rotation/ min
Torque range Mooney value 0~200
Torque resolution  Mooney value 0.1
Print content Date, time, temperature, Mooney scorch curve and MV,T5,T35,T3,T18,@15,@30
Power 50HZ, ~220V±10%

Standard Complete Test Operation Workflow

  1. Equipment Preheating Calibration
    Power on the main unit and connected control computer, set target test temperature according to rubber material requirements, wait for upper/lower die temperature to stabilize fully before loading samples.
  2. Standard Specimen Preparation
    Cut two identical circular rubber test blanks of specified thickness; remove surface dust and talcum powder to avoid interference with shear torque data.
  3. Sample Loading & Die Sealing
    Place one specimen on the lower die, lay the rotor in the center, cover with the second rubber sheet, activate pneumatic cylinder to close and lock the upper die to form a sealed constant-temperature chamber.
  4. Automatic Shear Testing Cycle
    Initiate test program via control software; the rotor rotates at fixed 2rpm continuously, the system records real-time torque changes and draws complete Mooney viscosity & scorch curve automatically.
  5. Data Export & Sample Unloading
    When preset test duration completes, the machine stops rotor rotation and lifts the upper die. Take out vulcanized test pieces, export and save curve data, then clean residual rubber from die cavity for next batch testing.
  6. Daily Maintenance Steps
    After finishing all daily tests, cool the heating cavity below 60℃, wipe alloy rotor and die surfaces thoroughly to prevent rubber residue carbonization affecting subsequent test accuracy.

Standard Factory Delivery Package

  1. KR-102 Mooney viscometer main machine unit
  2. Standard knurled alloy test rotor set
  3. Sealed upper & lower heating die assembly
  4. Complete pneumatic die closing system
  5. Dedicated PC rheology analysis software (installation USB disk)
  6. Multilingual operation manual aligned with ISO & ASTM standards
  7. Factory inspection qualification certificate and electrical wiring diagram
  8. Lockable mobile caster base assembly

Global After-Sales & Distributor Cooperation Support

We provide full remote operation training and Mooney test parameter tuning guidance, with long-term stable supply of replacement rotors, heating tubes and sealing gaskets. Custom overseas voltage conversion versions are available for bulk order clients. Exclusive regional agent policies include priority production scheduling, OEM private brand labeling and full sets of high-resolution English marketing image resources.

English Image Overlay Text Markers

Main Banner Title: KR-102 Precision Mooney Rotational Viscometer

Control Panel Labels: TEST START / HEAT SWITCH / MOTOR CONTROL / EMERGENCY STOP

Feature Overlay Tags: ±0.3℃ Temp Stability / Standard 2rpm Rotor / 0.1 Mooney Resolution / PC Curve Analysis / ASTM & ISO Certified

Safety Warning Label: WARNING – Do Not Touch High-Temperature Die Cavity During Testing

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KAREY products are trusted by customers across more than 100 countries, supporting long-term business growth in the testing equipment industry.
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KR-102 Precision Mooney Rotational Viscometer for Unvulcanized Elastomers

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