Melt Flow Indexers

Melt indexer

Melt Flow Indexers are used to measure the melt flow index MFR in g/10min and the volume flow index MVR in cm3/10min of pellets, powder or fine granules.

The GoettfertMelt indexer series, from entry level machine to highly automatic machine with automatic weight selection, can carry out tests according to ISO 1133 and ASTM D 1238, method B, as well as ISO 1133 and ASTM D 1238 method C, which is the "Half Height / Half Diameter" standard.It can be used for performing test according to method D for the FRR test (Flow Rate Ratio) and ASTM D 3364. Manual method A is also possible to be performed with the machine.


  • Force controlled pre-loading / ejection via drive and test weights
  • Multi-Load tests with up to 8 different weights, ascending, descending or freely selectable
  • High-precision timer with a resolution better than 0.001 s
  • Temperature control algorithm, resolution 0 to 320°C: 0.01°C, 320 to 500°C: 0.1°C
  • High-resolution position transducer to measure volume output
  • Automatic computation of resolution
  • Mobile rheology with the miAPP via modern web browser on a tablet or PC