Online Rheometers

MINI BYPASS RHEOGRAPH


The GOETTFERT MINI BYPASS RHEOGRAPH (MBR) is a compact on-line capillary-rheometer which is integrated directly in the production process for continuous measuring of MFR and viscosity properties of polymer.

The main advantage of the MINI BYPASS RHEOGRAPH is its compact size. With a width of approx. 150 mm, this is one of the smallest online rheometers available in the market. This new designed rheometer can be installed without problems even in tight space. The weight of the measuring head is only 30 kg whichreduce the cost of any mounting arrangements. A new die exchange system ensures job of die changes quick and easy.

The MINI BYPASS RHEOGRAPH MBR has been specially designed for finishing and compounding processes, which normally have frequent product changes. The installation of the system is simple and easy due to its compact size. Since the melt is not returned into the system, this allows an easy access to the die, and it can be changed easily and with minimum downtime.

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MINI BYPASS RHEOGRAPH

  • Flange-mounted measuring directly on the material supply line, separate Control Electronics
  • Compact size
  • Simple die exchange
  • Large measuring range due to shear rate range of 1:1000
  • System can be operated at a constant speed (shear rate) or constant pressure (shear stress)
  • Operation, evaluation and visual displays are made via personal computer, a built in industrial workstation or from the user side by a process control system
  • Single or multi-point measurements
  • The following test results are supplied depending on the selected operating:

    • -Melt index MFR or melt volume index MVR with or without temperature-compensation
    -FRR (Flow Rate Ratio), ratio of 2 consecutive MFR/MVR measurements, which correspond to laboratory tests
    with different weights
    -apparent shear stress, -shear rate and -viscosity

  • The test results can be:

    • -displayed in color on the PC screen
    -supplied via analog 4..20mA
    -requested via host computer connected via serial interface
    -database access via network
    -output in the form of test-data log on a printer







  • The system is also available for use in hazardous areas zone 1 and 2 with the classification Ex II 2 G EEx de ia c/k IIC T2/T3.

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