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Melt
flow
index

Melt
flow
index

The Melt Flow Index (MFI) Tester is a precision laboratory instrument used to measure the melt flow rate (MFR) and melt volume rate (MVR) of thermoplastic polymers under specified temperature and load conditions. It is widely used in the plastics, polymer, packaging, automotive, medical, and quality control industries to evaluate the flow characteristics and processability of plastic materials. The tester complies with international testing standards, ensuring accurate, repeatable, and reliable results for material quality assessment.
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Description
Designed with a robust construction and advanced microprocessor-based controls, the Melt Flow Index Tester offers precise temperature regulation, user-friendly operation, and high testing accuracy. Its digital display, automatic timing system, and durable heating chamber enable efficient testing while minimizing operator error. The instrument is an ideal solution for manufacturers, research laboratories, and testing facilities requiring consistent polymer quality evaluation.
  • Microprocessor based PID controller
  • Automatic sample cutting
  • Digital Preset Timer for accuracy and repeatability Die Steel barrel for uniform and consistent heating of barrel/test cylinder.
Display Digital 7 Segment, LED Display
Temperature Range Ambient to 400°C
Accuracy ± 1°C
Least Count/Resolution 0.1°C
Power 220V, Single Phase, 50 Hz
Sample Cutting Automatic, Motorized
Temperature Control PID Temperature Controller
Timer Digital Preset up to 999 Seconds
Material of Heating Barrel (Cylinder) Die Steel
Sample Cutting Motor Torque 7 kg/cm², 60 RPM
No. of Dead Weights 4 (1.2 kg, 2.16 kg, 3.8 kg, 5 kg)
Material Mild Steel
Finish Powder coated Havel Gray & Blue combination finish and bright chrome / zinc plating for corrosion resistant finish
Dimensions 550 x 550 x 500 mm

* The Melt Flow Index in grams per 10 min. of the test specimen can be calculated.

FAQ

Frequently Asked Questions

1. What is a Melt Flow Index Tester?
A Melt Flow Index Tester is a laboratory instrument used to determine the melt flow rate (MFR) or melt volume rate (MVR) of thermoplastic materials under controlled temperature and load conditions.
MFI testing evaluates the flow properties of molten plastics, helping manufacturers assess material quality, consistency, and suitability for various processing methods.
It is commonly used in plastics, polymer manufacturing, packaging, automotive, medical, chemical, and research laboratories.
The instrument is suitable for thermoplastic materials such as polypropylene (PP), polyethylene (PE), polystyrene (PS), ABS, PVC, PET, and other polymer compounds.
Most Melt Flow Index Testers are designed to comply with ASTM D1238 and ISO 1133 standards.
Depending on the model, the temperature range typically extends from ambient to 450°C with high accuracy.

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