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Multi-Pass Rheometer (MPR)

Multi-Pass Rheometer (MPR)

Delivering a versatile tester for investigating the rheological behaviour of fluids and solids.

Developed in conjunction with University of Cambridge, Strata delivered a Multi-Pass Rheometer for investigating the rheological behaviour of fluids and solids.

Design

The Cambridge Multi-Pass Rheometer (MPR) is a novel dual-piston capillary rheometer consisting of two servo-hydraulically controlled pistons enclosed within temperature-controlled barrels and a central test section. The pistons can be moved back and forth to drive the material contained within the MPR through the test section for precise repeatable measurements on a single sample.

Applications
  • Investigate the rheological behaviour of melts, liquids and soft solids
  • Precise processing studies of complex fluids in complex flows
  • Corroborating Computational fluid Dynamic (CFD) models
  • Establish shear-ageing characteristics
Key features
  • Wide range of testing on the same sample without the inconvenience of having to load a fresh sample each time
  • Sample size can be as small as 10g
  • Samples can be pre-compressed, allowing tests to be conducted at high, mean or minimum pressures
  • High wall shear rates
  • Precise digital control
  • In normal operation the displacement of the pistons is varied and the resulting pressure change is measured.  However, with the latest control software it is possible to set the pressure and measure the resulting displacement variation
Operating Conditions
  • Operating temperature range -20 to 200°C
  • Wall shear rates of up to 160,000s-1
  • Operating pressure to 200 barG
  • Variable piston velocity up to 200mm/second

For more information, download our Cambridge Multi Pass Rheometer (MPR) brochure.

Find out more about our Engineering Services and Laboratory Solutions Products.

Versatile engineering

Thank you for your invaluable contribution to this project. The MPR is a very versatile mechanical tester.

Professor Malcolm Mackley FREng, Department of Chemical Engineering and Biotechnology, University of Cambridge

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