The Rheoline Multi-Function Rheometer (MFR) is our most innovative dynamic testing rheometer, designed to deliver reliable results to the most precise accuracies with an extensive range of test stages or operations. It is capable of fulfilling tasks of both a Moving Die Rheometer (MDR) and a Dynamic Shear Rheometer (DSR), providing vital analytical and statistical data of elastomeric properties to the finest detail, making this the ultimate choice for any polymer specialists.
The instrument can be used firstly at lower temperatures and frequencies to study the process of polymers, secondly as a standard MDR and thirdly as a dynamic mechanical analyser to evaluate the cured properties of materials. (See modes of operation).
This dynamic rubber testing instrument utilises a new generation In-line Servo Motor coupled with digital servo drive technology, together with our acquisition and analysis Labline Software; which has fantastic flexibility and provides a wide range of test conditions with unlimited’ test methods.
The temperature control of the dies is better than its rivals, giving an impressive variation of ± 0.03 °C from the set point. This instrument comes complete with an Air Cooling System as standard to assist the operation of a Temperature Sweep.
Modes of operation
This instrument comes with a set of pre-programmed tests and allows full flexibility giving the user complete control of the test stages. Tests can be in the form any of its modes of operation or a combination.
- Frequency Sweep
- Strain Sweep
- Temperature Sweep (with forced cooling)
- Standard MDR Mode
- Pre-set test Specifications
- Combination (Linked) Tests
ISO 6502 / ISO 13145
ASTM D5289 / ASTM D6048 / ASTM D6204
ASTM D6601 / ASTM 7605
Ambient to 250 °C
± 0.03 °C
0.001 Hz to 50 Hz
± 0.001 ° to 360 °
As our commitment to you, our Multi-Function Rheometer is complete with everything you need to perform dynamic, 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 Multi-Function Rheometer is supplied with the latest computer hardware, pre-installed with our most innovative data acquisition and analysis Labline software for Microsoft Windows ® OS.
This version of software grants an unlimited amount of test specifications with any number of test points. The software is complete with a calibration module.
- Automatic Pass/Fail Result
- Laboratory Statistics
- 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 ®
- Standard Cure (MDR mode, non isothermal)
- Strain (Sweep LAOS)
- Payne test
- Stress Relaxation
- Frequency Sweep
- Linked tests any combination of test method and any duration
All Test Methods have an unlimited selection of data points on all channel curves.
Labline comes with an extensive range of test points:
|Minimum (ML)||Maximum (MH)|
|Scorch (TS)||Cure Percentage|
|Minimum (True)||Maximum (True)|
|Time Gate||Cure Gate|
|Cure Rate Time||Cure Rate Value|
|Delta Cure||Delta Cure Time|
|Frequency Gate||Frequency Gate (Rev)|
|Strain Gate||Strain Gate (Rev)|
|Temperature Gate||Temperature Gate (Rev)|
- Elastic Torque
- Viscous Torque
- Tangent Delta
- Cure Rate
- Temperature (Upper)
- Temperature (Lower)
- Pressure in Cavity (Supplied as std.)
- Complex Torque
- Loss Angle
- Storage Modulus
- Loss Modulus
- Complex Modulus
- Storage Compliance
- Loss Compliance
- Complex Compliance
- Real Dynamic Visc.
- Imag. Dynamic Visc.
- Dynamic Complex Visc.
Units of measurement
- Time: secs, min:sec, min.dec
- Temperature: °C, °F
- Torque: dNm, Inlbs, kgcm
- Pressure: kPa, Lbs/In2, Kg/cm2
- Cure Rate: InLbs/s, dNm/min, InLbs/min, dNm/s
- Angle: °, rad
- Frequency: Hz, CPM, rad/s
- Strain: %, rad arc
- Modulus: kPa
- Compliance: /MPa
- Dynamic Viscosity: kPa.sec
The response of a specimen to a sinusoidal deformation can best exhibit the dynamic properties of an elastomer. The elastic component of the elastomer is responsible for the in-phase stress, while the viscous component is responsible for the out-of-phase stress. The amount by which the strain response lags the resultant of the two stresses (in-phase and out-of-phase) is known as the phase or loss angle, δ. The more viscous an elastomer is, the greater the phase or loss angle. The tangent of this angle “tan δ,” in the simplest terms, is the ratio of the viscous modulus to the elastic modulus.
|Elastic Torque, S′
The peak amplitude torque component which is in phase with a sinusoidal applied strain.
|Loss Shear Modulus, G′′
The ratio of (viscous) peak amplitude shear stress to peak amplitude shear strain for the torque component 90° out of phase with a sinusoidal applied strain. Mathematically, G′′ = [(S′′/Area)/Peak Strain]
|Viscous Torque, S′′
The peak amplitude torque component which is 90° out of phase with a sinusoidal applied strain.
|Complex Shear Modulus, G*
The ratio of peak amplitude shear stress to peak amplitude shear strain.
Mathematically, G* = [(S*/Area)/Peak Strain] = (G′² + G′′²)^1/2
|Complex Torque, S*
The peak amplitude torque response measured by a reaction torque transducer for a sinusoidal applied strain. Mathematically, S* = (S′² + S′′²)^1/2
|Loss Factor, Tan delta
The ratio of loss modulus to storage modulus,or the ratio of viscous torque to elastic torque. Mathematically, tan delta = G′′/G′ = S′′/S′
| Loss Angle, delta
The phase angle by which the complex torque (S*) leads a sinusoidal applied strain.
|Dynamic Complex Viscosity, n*
The ratio of the complex shear modulus, G*, to the oscillation frequency in rads/sec.
| Storage Shear Modulus, G′
The ratio of (elastic) peak amplitude shear stress to peak amplitude shear strain for the torque component in phase with a sinusoidal applied strain.
Mathematically, G′ = [(S′/Area)/Peak Strain]
|Real Dynamic Viscosity, n′
The ratio of the loss shear modulus, G′′, to the oscillation frequency in rads/sec.
|Die System:||Rotor-less, Biconical, Sealed System|
|Die Gap:||0.45 mm nominal|
|Oscillation Frequency:||0.001 Hz to 50 Hz|
|Oscillation Amplitude:||± 0.001 ° to 360 °|
|Temperature Range:||Ambient to 250 °C|
|Maximum Heat Rate:||80 °C/min|
|Cooling Rate:||Forced air: 20 °C/min|
|Temperature Control:||3 term PID, control accuracy to ± 0.03 °C|
|Torque Device:||Reaction transducer in upper platen|
|Torque Range:||0.001 to 250 dNm|
|Cavity Volume:||4.5 cm³|
|Pressure in Cavity:||0.001 to 10 kN|
|Calibration Device:||Torsion spring|
|Closing System:||Soft closing to reduce breakage of film and distortion of sample|
|Drive System:||In line servo-motor and Aerotech digital controller|
|Fitted Cooling System:||Yes|
|Electrical:||Single Phase 220/240 V 50 Hz | 110 V 60 Hz | 350 VA|
|Pneumatics:||Filtered Air, Min: 0.41 Mpa | 60 psi | 4.14 Bar | 4.2 kg/cm|
|Dimensions:||575 mm x 570 mm x 1280 mm (W x D x H)|