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Melt Flow Index Tester — Manufacturer & Supplier in India

International Equipments is a leading manufacturer, supplier and exporter of high-precision Melt Flow Index Testers (MFI Testers) in India. Based in Mumbai and serving customers in over 60 countries, we design and build melt indexers that comply fully with ASTM D 1238 and ISO 1133 international standards.

Our complete MFI tester range covers manual entry-level models, digital auto-cutter models, and fully computerized testers that calculate Melt Flow Rate (MFR), Melt Volume Rate (MVR) and Melt Density automatically. Whether you operate a small QC lab or a large polymer manufacturing facility, our melt flow index testing machines deliver reliable, repeatable results — backed by full after-sales support and our nationwide service network.

50+ Years Experience CE Certified Exporting to 60+ Countries

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What is a Melt Flow Index Tester?

A Melt Flow Index Tester — also called an MFI Tester, Melt Indexer, or Extrusion Plastometer — is a laboratory instrument used to measure the flow rate of molten thermoplastic resins through a standard orifice under a specified temperature and load. The result, expressed in grams per 10 minutes (g/10 min), is one of the most important quality parameters in the plastic and polymer industry.

Melt Flow Index (MFI) values help manufacturers identify the grade of a polymer, confirm batch-to-batch consistency, check the effect of additives, and validate that incoming raw material matches the supplier specification before it enters production. A reliable MFI tester is therefore essential equipment for every polymer processor, pipe manufacturer, film extruder, recycled-plastic processor and quality testing laboratory.

Applications

  • Plastic Pipe Industry
  • Injection Moulding
  • Film Extrusion
  • Polymer Compounding

Our Range of Melt Flow Index Testers

We manufacture four distinct models of MFI Tester to suit every laboratory need, budget and testing volume:

Melt Flow Index Tester KAYJAY/2005/CE Manual Model

(KAYJAY/2005/CE) — Basic - Manual, Test Method A

Economical entry-level model with auto-tuned PID controller and manual sample cutting — ideal for small-to-medium polymer labs. This model is suitable for models up to 50 g/10 min MFI.

Melt Flow Index Tester KAYJAY/2006/AC Auto Cut Model

(KAYJAY/2006/AC) — Auto-Cut & Auto Program, Test Method A

Digital MFI tester with motorised auto cutting of the extrudate and built-in prelogic program for easy operation including preheating time, test time, and auto calculation of MFI.

Computerized Melt Flow Index Tester Method A

Computerized Melt Flow Index Tester (Test Method A)

PC-interfaced model with motorised cutting, auto-weighing, result calculation and software-based storage, averaging and statistical analysis features.

Computerized Melt Flow Index Tester Method A and B

Computerized Melt Flow Index Tester (Test Method A & B)

Top-of-the-range model with auto loading, auto cutting, auto weighing and piston travel measurement for MFR, MVR and melt density in a single test.

Technical Information

All our melt flow index testers are designed, manufactured and calibrated to comply with the following international and Indian testing standards:

  • ASTM D 1238 — Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer
  • ISO 1133 — Plastics: Determination of the Melt Mass-Flow Rate (MFR) and the Melt Volume-Flow Rate (MVR) of thermoplastics.
  • IS 2530 — Indian Standard for testing properties of polyethylene moulding materials.
  • IS 10810 — Indian Standard for methods of test for cables (relevant clauses on polymer flow)
  • Quality control of incoming raw polymer granules and pellets.
  • Batch-to-batch consistency checking during plastic compounding.
  • Testing of recycled plastic before it is fed into production.
  • Grade identification of unknown thermoplastic materials.
  • Validation of HDPE, LDPE, PP, PVC, PET, ABS, PS, PC, Nylon and other polymers.
  • Process control in injection moulding, blow moulding, film extrusion and pipe extrusion.
  • R&D testing of new polymer formulations and additives.
  • Plastic Pipe Manufacturers (HDPE, PPR, PVC, PEX pipes).
  • Plastic Film & Flexible Packaging Industry.
  • Polymer & Master-batch Compounders.
  • Recycled Plastic Processors.
  • Woven Sacks, Raffia Tape & FIBC Manufacturers.
  • HDPE PLB Duct Manufacturers.
  • Injection & Blow Moulding Plants.
  • Plastic Crate, Bottle Cap & Closure Manufacturers.
  • Petrochemical & Resin Producers.
  • Government Testing Laboratories & Universities.
  • Built to International Standards : Every MFI tester complies fully with ASTM D1238 and ISO 1133, with traceable calibration.
  • ISO & CE Certified Manufacturing : Our facility is ISO certified and our products carry CE marking — required for export to Europe and Middle East.
  • Four Models for Every Budget : From entry-level manual to fully automatic computerized models — choose what suits your testing volume and budget.
  • Hard Chrome Plated Weights : All test loads — 1.2 kg, 2.16 kg, 3.8 kg, 5 kg, 10 kg, 21.6 kg — are precision-machined and hard chrome plated for life-long accuracy.
  • Nationwide Service Network : Service engineers available across India for installation, calibration, AMC and on-site training.
  • Exporting to 60+ Countries : Trusted by polymer manufacturers in the Middle East, Africa, South-East Asia, Europe and South America.

Frequently Asked Questions

What is the difference between Test Method A and Test Method B of ASTM D 1238?

Test Method A measures Melt Flow Rate (MFR) by cutting the extruded polymer at fixed time intervals and weighing it — best suited for polymers with MFI below 50 g/10 min. Test Method B uses a piston travel linear displacement sensor to calculate Melt Volume Rate (MVR) and Melt Density — required for polymers with high MFI above 50 g/10 min. Our Computerized MFI Tester (Method A & B) supports both methods in a single instrument.

Which Melt Flow Index Tester model should I buy for my plant?

For a small QC lab with low testing volume, our manual KAYJAY/2005/CE model is the most economical choice. For continuous production-line QC, choose the KAYJAY/2006/AC with motorised auto-cutting. For R&D laboratories or labs testing a wide MFI range, the Computerized Method A & B model is the best investment as it measures MFR, MVR and Melt Density together.

What is the temperature range of your MFI tester?

All our melt flow index testers operate from ambient temperature up to 400 degree Celsius, with a resolution of 0.1 degree C and accuracy of plus-minus 0.1 degree C, controlled by a microprocessor-based auto-tuned PID controller.

Do you provide installation, training and calibration?

Yes. We provide free online installation as well as on-site operator training at the customer site anywhere in India as per contract and need by customer. Calibration certificates are provided with every machine, and we offer Calibration visit on annual basis covering training and demonstration for long-term support.

Which polymers can be tested on your Melt Flow Index Tester?

Our MFI testers can test all major thermoplastics including HDPE, LDPE, LLDPE, PP, PVC, PET, ABS, PS, PC, Nylon (PA), POM, PMMA, EVA, TPE, TPU and most engineering plastics — provided their flow temperature stays within the 0 to 400 degree C range of the instrument.

What is included as standard accessories with the MFI tester?

Standard accessories supplied with every Melt Flow Index Tester include: Orifice, Piston, Spoon, Spanner, Plumb line, Funnel, Material charger, Mirror, Tweezer, Orifice cleaner, Barrel cleaner, Sample cutter and Accessory stand.

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Looking for a Reliable MFI Tester?

Contact International Equipments today for a personalised quotation, demo video, or factory visit. Our team is ready to help you choose the right MFI tester model for your laboratory.

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