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Melt Flow Index Tester

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Melt Flow Index Tester

The melt flow index tester (Deluxe Model) is a significant attribute of any plastic material that can help in determining various chemical and physical properties of the materials. The melt flow index tester is a highly precise and accurate instrument that offers exact and accurate determination of melt flow index of a plastic resin. The melt flow index of a plastic resin is termed as the weight of the resin flowing through a capillary tube every ten minutes under an unambiguous load or shear stress. The test procedure includes passing the molten plastic granules from a capillary tube of specific dimensions. A specified load is applied to the test sample with the help of a piston. Apart from that the following are also available for the customers - Melt Flow Index NXG Model.


The melt flow index tester is used for determination of the melt flow rate of various materials such as plastic granules. It is a widely used product in plastics and polymer industry. The instrument is designed and manufactured as per standards set by ISO and ASTM and is mainly focused on meeting the principal conditions necessary for the test procedure.

The instrument has a PID temperature controller, and its working is based on a microprocessor. The temperature can vary from ambient to 4000C. The resolution of the instrument is also 0.10C and has an accuracy of ±0.10C. The apparatus comes with a digital timer that is pre-settable and can be extended to 59 minutes and 59 seconds.

There are standards accessories available with the devices that are a piston, orifice, spanner, funnel, spoon, mirror, plumb line, material charger, barrel cleaners and so forth. The machine is manufactured on a base plate of heavy metal for long life, safety and stability. The tester is in strict adherence to standards of ASTM D 1238-1992. The instrument has a fine finish in grey and blue color. The product comes with a complete user guide and a conformance certificate that can easily be traced to any labs approved by NABL. 

  • The instrument is capable of maintaining the accurate temperature needed for the test procedure that ranges from ambient to 400 0C.
  • The temperature controller used in the machine is PID which is a completely microprocessor based.
  • The machine has a high rate of accuracy and repeatability and incorporates a pre-settable timer.
  • The instrument has a feature to cut the test samples automatically which makes the results reliable and test procedure easy.
  • Additionally, the standard accessories and resources are available with the product. 

  • The MFI is available with best accuracy and features that can calculate the exact MFI of the products.
  • Piston head of the MFI tester has a diameter of 9.47mm.
  • The heater tube cavity has a diameter of 9.55mm.
  • The die that is affixed to the instrument has dimensions of 2.095mm diameter.
  • The pressure exerted on the granules by the piston can be 1.2kg, 2.16kg, 3.8kg, 5kg, and 10kg.
  • Standards: IS 2267-1972, IS 2530-1963.
  • Compounds: IS 10810-1984 and ASTM D 1238-1992.
  • The instrument also comes with an optional accessory lab weighing-balance of 200gms that has a least count of 0.01grams. 

Customer Reviews

Good use to test the properties of plastic material Review by Joydeep
Excellent machine to test the plastic material’s chemical and physical properties. Testing procedure is simple and machine is easy to use. Applying specific load to the test sample with the help of piston provides the accurate results. It’s a helpful machine for me and I am thankful to Labtiger for their on-time delivery (Posted on 12/3/2015)

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Melt Flow Index Tester