V-MV 3000

V-MV 3000

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V-MV 3000


Large (38.10 mm) and Small (30.48 mm)

Sealed, with longlife seals

Rotor speed

0 to 50 turns per minute, 0.01 steps (0 to 5.25 radians / second)

Test modes

Mooney Viscosity,

Mooney Scorch,

Stress Relaxation,

Mould release, Delta Mooney

Mooney Variable Viscosity,

Variable test sequence block programming

Multi-step stress relaxation

High-end Mooney Viscometer

The Variable Mooney Viscometer V-MV 3000 brings traditional Mooney Viscosity, Scorch and Stress Relaxation testing to the next level. Besides the ultra-rigid test frame, the instrument incorporates the latest direct servo drive technology and superior design for unbeaten data accuracy and test result precision.

In addition to static Mooney Viscometer testing at fixed rotor speeds under isothermal conditions according to international standards, the Variable speed Mooney Viscometer V-MV 3000 is further capable of running test sequences at variable rotor speeds as well as fully dynamic tests including speed steps, ramps and multi-step relaxation, all this with simultaneous temperature profiles and optional cooling of the sample in the die cavity to as low as +10ĀčC, making the V-MV 3000 not only ideal for polymers and rubber compounds, but also silicone, latex and epoxy resin testing.

This functionality efficiently provides very useful additional information on the test material at the highest accuracy. For example, materials showing similar static viscosities at 2rpm can now be tested at variable shear rates and temperatures.

From these results, polymer specialists can gain a much better understanding of polymer and rubber behavior regarding branching, molecular weight distribution, average molecular weight as well as shear thinning.

The instrument is equipped with MonControl Software and special block programming features to allow an unlimited number of rotor speeds and test temperatures per test – of course in any combination.

Lower radial v-groove die with large, serrated rotor

The low-mass rotor design ensures homogenous temperature distribution, and in conjunction with MonTech longlife seals, offers the highest accuracy in Mooney readings.

Rubber sample after Mooney scorch testing

Mooney Scorch testing is made simple with the V-MV 3000. Test can be automatically stopped once the maximum desired Scorch time or Scorch viscosity reading is reached, maximizing instrument availability and sample throughput.

SBR Polymer sample after Mooney viscosity testing

Various types of testing film are available for easy sample handling, reduced cleaning needs, less die contamination and therefore improved repeatability.


Mooney Viscosity

The Mooney Viscosity test is the most popular test method for characterizing polymers and uncured rubber materials. As defined by international standards, the sample material is preheated for a defined period in a closed die cavity, then sheared by the embedded rotor at a constant rate. The Mooney Viscosity is recorded and data is automatically calculated at predefined time and viscosity points. MonTech Mooney Viscometers offer superior precision and repeatability, providing the user with reliable data and making it easy to differentiate between different types and grades of polymers in order to ensure a high processing consistency.

Mooney Stress Relaxation

As Mooney Viscosity testing only provides information about the flow = viscosity of polymers and rubber compounds, stress relaxation testing can be used to assess elastic material behavior. This does not even require additional samples or testing efforts. Once the Mooney Viscosity test is completed, the rotor is stopped within 5 milliseconds and the torque decay is observed and recorded. Once the stress relaxation is completed, the slope-intercept and regression coefficient are calculated, providing excellent correlations in reference to polymer branching and processing.

Mooney Scorch

Mooney Scorch is one of the most useful tests to determine starting of cure - so called scorching behavior - of rubber compounds, providing essential data for designing and controlling production processes as well as checking material consistency. Of course, every MonTech Mooney Viscometer offers full Mooney Scorch and Delta Mooney testing capabilities featuring a selection of over 3500 datapoints which include initial Mooney viscosity, minimum viscosity, scorch times and scorch viscosities.

Mooney Viscosity at Shear Rates and Temperatures

Besides only static testing, MonTech Variable Mooney Viscometers such as the V-MV 3000 offer full dynamic testing capabilities, allowing measurement of viscosity at variable shear rates (by stepless changes of the rotor speed) and temperatures. Furthermore, even non-isothermal sequences, variable rotor speed profiles as well as step-relaxations can easily be programmed and executed. Overall, this allows a detailed and complete understanding of the polymer behavior. Along with this, low rotor speed rates in Mooney Viscosity testing even provide the ability to test highly elastic and shear sensitive materials that could not be properly tested and characterized on Mooney Viscometers before.


International standards

ISO 289:2005, ASTM D 1646, DIN 53523, BS 903: Part 58, AFNOR T43-00/005, BS 1673, GOST 10722-76, JIS K6300, TGL 25-689

Test modes

Mooney Viscosity, Mooney Scorch, Stress Relaxation, Mould release, Delta Mooney Mooney Variable Viscosity, Variable test sequence block programming Multi-step stress relaxation


Large (38.10 mm) and Small (30.48 mm) Sealed, with longlife seals

Rotor speed

0 to 50 turns per minute, 0.01 steps

Stress Relaxation

According to ISO 289:2005, DIN 53523 Part 4

Temperature control system

Ambient to 232 °C, precision +/- 0.03 °C, digital, microprocessor controlled


Mooney - units (MU), Temperature (°C, °F), Time (min - min / min - sec)

Closing force

11.5 kN

Die configuration Rotor

According to international standards large (ø 38.1 mm) and small (ø 30.48 mm) Rotor

Force measurement

In-line torque transducer

Torque range

0.01 to 230 MU

Sample volume

Two specimens having a combined volume of 25 cm³

Temperature check system

Recordings of the temperature gradient on the screen, PID microprocessor monitored


Fully automatic by built-in calibration weights, Software guided

Data Interface

Ethernet (10/100 MBit), USB (int.), CF card (int.), RS232 (opt.)

Data points

Over 3500 data points available Including: Initial viscosity, ML / ML 1+X, Y+X+Z, Stress Relaxation (log-log), Slope, Intercept, Regression coefficient, Scorch viscosities and cure times


min. 4.5 Bar / 60 psi


200 V - 240 V, 6 Amps, 50/60 Hz

Instrument options

Instrument control panel with 5“ touchscreen display and printer / Easy access and encapsulated electronic system / Double channel forced air cooling system / Low-temperature cooling system MCool 10 / M-VS 3000 constant volume sample cutter



Pneumatic cooling system

Rotor, die assembly and drive system


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