Melt Flow Indexers


The Melt Flow Index Tester MI-3 enables to measure the melt-flow-rate (MFR) and the melt-volume-rate (MVR) with a semi-automatic instrument. It can carry out a single weight test according to ISO 1133 and ASTM D1238 procedures B, as well as ISO 1133 and ASTM D1238 Procedure C for the "Half Height/Half Diameter" standard. It also has a high resolution position sensor with an automatic selection of the resolution which allows a repeatable and reliable measurement of MFR and MVR.


  • 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