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Melt flow rate and melt volumeflow rate

MFR/MVR TESTER

  • Model no. 1709
  • Tests on raw materials

Defining the flow behaviour of thermoplastics safely

The 1709 MFR/MVR tester is used to determine the melt flow rate of thermoplastics. In the basic version, the melt flow rate (MFR) can be determined by manually applying test weights of 2.16 kg and 5 kg. Automatic distance measurement is available as an option for the melt volume-flow rate (MVR). Furthermore, a motorized weight loading up to 21.6 kg as well as an automatic cutting device are available as an option. The device also has an interface for an analytical balance, which means that the values determined can be transferred directly to the tester. The proven IPTDatalogging system can be connected via a further interface in order to print out and subsequently archive the test results. The device is conveniently operated via a built-in touchscreen. Extensive accessories for cleaning the test channel, nozzle and piston are of course included as standard. 

Standards

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  • ISO 1133
  • ASTM D 1238

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Features and Functionality

The basic version can be tested with temperatures between 50 °C and 300 °C. Temperatures of up to 450 °C can be optionally reached.
The target temperature can be preselected in 0.1 K increments. The regulating accuracy is 0.2 K.
High temporal and spatial temperature accuracy in the test channel is guaranteed by a self-optimising regulating system using a microprocessor with two separate heating and regulating circuits. For temperature measurement, extremely accurate resistance thermometers (Pt 100) are installed at the height of the nozzle and in the centre of the cylinder.

The touchscreen

The built-in touchscreen can be used to enter the test parameters, monitor the test and display the test results. The built-in CPU controls the test sequence, manages the testing data, calculates the test results and operates the interfaces for data logging and for an electronic analytical balance. A tolerance range can be entered to evaluate the valid measurements. Invalid measured values are specially marked in the test report, but are not used to calculate the mean value. 

Periphery and Complementary

LABORATORY GRANULATOR

  • Model no. 1665
  • Sample preparation
The laboratory granulator was developed for the production of granulates from plastic pipe slices or plastic sheets, for example for the determination of MFR/MVR values. 

Standards

  • ISO 1133
  • ISO 1183
  • ASTM D 1505
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ANALYTICAL BALANCE

  • Model no. H3000
  • Tests on raw materials
  • Sample preparation
Analysewaage

The analytical balance is required in every test laboratory. It is used to precisely determine important values such as MFR, carbon black content, K-value, degree of crosslinking, OIT, volatile components, water absorption and similar.

Standards

  • ISO 1133
  • ISO 1628-2
  • ISO 62
  • ISO 6964
  • EN 12099
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