A high-precision Melt Flow Index Tester range — manual, auto-cut and fully computerized models — measuring the melt flow rate (MFR), melt volume rate (MVR) and melt density of thermoplastics to ASTM D1238 and ISO 1133.
A Melt Flow Index Tester — also called an MFI tester, melt indexer or extrusion plastometer — measures the flow rate of a molten thermoplastic through a standard orifice under a set temperature and load. The result, in grams per 10 minutes, is one of the most important quality parameters in the plastic and polymer industry.
MFI values let manufacturers identify a polymer grade, confirm batch-to-batch consistency, check the effect of additives and verify that incoming raw material matches specification before production. International Equipments manufactures a complete range in Mumbai and exports to 60+ countries, from entry-level manual models to fully computerized testers that calculate MFR, MVR and melt density automatically.
From an economical manual tester to a fully automatic Method A & B instrument — each links to full specifications.
Economical entry-level model with an auto-tuned PID controller and manual sample cutting — ideal for small-to-medium labs, up to 50 g/10 min MFI.
View model →Digital tester with motorised auto-cutting and a prelogic program — preheating time, test time and automatic MFI calculation.
View model →PC-interfaced with motorised cutting, auto-weighing and software-based storage, averaging and statistical analysis.
View model →Top-of-range with auto loading, cutting and weighing plus piston-travel measurement for MFR, MVR and melt density in one test.
View model →Specifications shared across the range; automation level varies by model (see Our Range above).
| Standards | ASTM D1238, ISO 1133; IS 2530, IS 10810 |
|---|---|
| Temperature range | Ambient to 400 °C |
| Temperature resolution | 0.1 °C |
| Temperature accuracy | ±0.1 °C |
| Controller | Microprocessor auto-tuned PID |
| Test loads | 1.2, 2.16, 3.8, 5, 10 & 21.6 kg (hard chrome plated) |
| Orifice & piston | Hardened, to ASTM D1238 / ISO 1133 |
| Result units | MFR in g/10 min; MVR in cc/10 min & melt density (Method B) |
| Power supply | 230 V, 50 Hz, single phase (export voltages configurable) |
All major thermoplastics whose flow temperature falls within the 0–400 °C range:
Supplied as standard:
Every MFI tester complies with ASTM D1238 and ISO 1133, plus IS 2530 and IS 10810 for Indian standards, and is supplied with a traceable calibration certificate. Method A measures Melt Flow Rate (MFR) by cutting and weighing the extrudate; Method B adds Melt Volume Rate (MVR) and melt density via a piston-travel sensor.
Send your material, test standard and throughput. We'll respond within one business day with a configuration and quote.
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