In the plastic and polymer industry, MFI ( Melt Flow Index Tester) is the most important testing equipment. Polymers like materials that melt at certain temperatures, this amazing instrument will help measure the resistance of materials. A melt Flow Index  Tester is used for calculating the melt flow index value of (inorganic or organic polymer specimens). Mass of Melted Polymer in 10 minutes at a particular weight, pressure and temperature is the MFI value of a sample. By using a Melt Flow Index Tester,  melt flow rate and viscosity can be measured. A specifically sized specimen will be placed in a heated barrel with a plunger during this test, it is placed in the barrel to force the polymer to melt a load on the top is inserted. Weight should be placed on a piston, after the melting for softening of polymer. (Die or orifice can be used for forcing it). A high melt flow index is involved in a quality polymer.

On the other hand, a molten polymer can be simply fabricated into desired articles. but less enough that the mechanical strength of the resultant article for a long time is sustained. So, to assure high-quality production MFI (melt flow index tester) is a need for every polymer industry.