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The Dynisco CMR system consists of two parts: a rheometer head connected directly to the process which samples, conditions, and measures the melt flow of the resin, and an RCU (Rheologic Control unit) that controls the CMR test parameters (temperature, pressure, rate), and provides outputs of computed results, and communications to an external distributed control system when required.
  • On-line melt flow rate correlated to ASTM D1238
  • On-line apparent viscosities
  • Data exchange by analog and digital input/outputs
  • Customer specified solutions
  • Systems for hazardous locations
  • Compact measuring head for close extruder connection
  • Vertex Mercury Free pressure transducers for high accuracy
  • A range of metering pump sizes for specific applications
  • Simple ”in the field“ calibration
  • Alarm system for malfunctions
  • Rugged industrial design

Certifications | Approvals

CE Approval for CMR

CE Approval for Continuous Melt Rheometer (CMR) in conformity with the standards or other normative documents regarding the provisions of the respective EU Directive

ISO 9001:2015


Dynisco Product Portfolio

From breakthrough technology in the industry’s most complete line of sensors to renowned quality and performance in indicators, controls, and analytical instruments Dynisco has demonstrated the skill, experience and know-how that not only deliver the right solution for your unique application, but also provide unparalleled customer support.

Online Viscosity Measurement


CMR IV Datasheet


CMR IV Manual

Service Solutions

Onsite Polymer Test Service Form

If you are looking for onsite calibration and repair services, please complete this form and send back to


Simplified Rheology for the Masses

We address issues such as the need to test polymers, the correlation of lab values to online production, and the impact of melt flow index and viscosity on part quality and profitability.

Simplified Rheology: A Technical Discussion

Understand technical aspects of how parameters change between laboratory standards and production and how advanced equipment today can adjust for these differences.

Tech Notes

Detecting Polymers in Material Products

It can be very difficult, if not impossible, to achieve complete indentification of most polymer products. However, in most cases, this is usually not needed; what is needed is the separation, or identification, of numerous molding materials whose identity has been lost, or an indication of the type of material used to create a component.

Melt Processing of Thermoplastics for Extrusion and Injection Molding

Extrusion and injection molding are the most important conversion techniques used by the thermoplastics processing industry, Certain factors need to be considered before a thermoplastics material is processed, regardless of whether it is injection molding or extrusion molding that is used.

Have A Question? Ask a Dynisco expert for more information.

  • Dynisco

    38 Forge Parkway,
    Franklin MA 02038

    +1 508 541 9400  

  • Dynisco Europe GmbH

    Pfaffenstr. 21, 74078,
    Heilbronn, Germany

    +49 7131 297 0

  • Dynisco China

    Bldg. 7A, No. 568, Longpan Rd.
    Malu, Jiading, 201801, China

    +86 21 34074072-888

  • Dynisco-Viatran Instrument Sdn Bhd

    Lot 3615, Jalan SM 6/8
    32040 Seri Manjung, Perak, Malaysia

    +605 6884014