Top 5 Tips To Maintain Presto Melt Flow Index Tester

Top 5 Tips To Maintain Presto Melt Flow Index Tester

In the plastics and polymer industry, the use of MFI testers has been increased over the past several years. This is because the polymers and plastics will easily get melted at a certain temperature. Thus, it is very important to measure the resistance of the flow of these materials when exposed to certain temperatures. The Presto melt flow index tester is one of the amazing testing instruments used in plastic and polymer industries to analyze the quality of plastic materials. Thus, with the help of this testing instrument, you will be able to make sure the best quality of products will be delivered to your customers. Here in this article, we are going to provide you with 5 amazing tips that you should follow in order to maintain this testing instrument. We will also highlight the features and technical specifications of the MFI tester deluxe model designed by the experts at Presto. So, let us get started!

Presto melt flow index tester: Best testing equipment for plastic and polymer industries

We all know that plastics are widely used in many industrial and domestic applications. The manufacturers of plastic products need to analyze the quality of the plastic materials they use so as to make sure the best quality of products will be delivered to their clients. The Melt Flow Index is a major property of plastics that determines the physical as well as chemical properties of the materials. The Presto’s Melt flow index tester is an advanced testing machine that is very helpful for accurate analysis of the Melt Flow Index of plastic granules of different types of plastics. There is a PID controller provided with the instrument that is best for controlling the temperature inside the chamber with high accuracy. There is a timer provided with the machine which can be used for setting the testing time up to 999 hours.

Thus, you must consider this testing equipment if you are working in the plastic and polymer industry. Here are the features and technical specifications of this testing instrument.

Features of Presto MFI tester


  • High heating capacity from ambient to 4000 C
  • Pre-settable digital timer for selecting the test cycle time for sample cutting.
  • Advanced PID controller for effective temperature control.
  • Auto tuning function provided with PID controller.
  • Stainless steel inner body with corrosion resistance.
  • Provided with automatic and manual operation for cutting of the test specimen

Technical specifications:

  • Equipment Range: Ambient to 4000 C. (Higher ranges also available on request.)
  • Working Range: Ambient to 260 0 C.
  • Heating Barrel Material: Die Steel
  • Inner Diameter of Cylinder: 9.500 mm ± 0.005 mm
  • Length of Cylinder: 115 mm ± 0.005 mm
  • Inner Diameter of Die: 2.090 mm ± 0.005 mm.
  • Dimensions of piston head: 9.47 mm diameter x 6.35 mm ± 0.10 mm in length
  • Dead Weights: 1.2 kg, 2.16 kg, 3.8 kg, 5 kg.
  • Outer Body Material: Mild Steel Duly Powder Coated
  • Least Count: 0.1 0 C
  • Repeatability: ±2.00 C
  • Temperature Control: PID temperature controller
  • Heating Control: SSR relay-25 Amp
  • Timing device: Digital preset timer with a maximum capacity of 999 hours
  • Timer Least Count: 1 second
  • Heater Wattage: 600 watts.
  • Accuracy: ±2.00 C
  • Cutting device Motor speed: 60 R.P.M.
  • Heat Sensor: PT-100, Platinum Resistance Temperature Detector (RTD)
  • Electrical supply: 15 amp. 220 V ± 15%. Single-phase AC
  • Power consumption: 1 KW

5 amazing tips for maintaining an MFI tester

If you want to make sure that your melt flow index tester will work accurately, for a long period of time, then we suggest you follow these below-mentioned tips. These tips will help you to maintain your MFI tester so that you can deliver quality products to your customers.

  1. Ensure that the barrel and orifice die is cleaned always before and after commencing the test.
  2. While cleaning the barrel, ensure that the cleaning is inserted straight into the barrel without any deflection.
  3. Once the testing procedure is complete, do not turn off the machine without clearing it properly.
  4. Do not try to exceed the maximum heating capacity of the machine.
  5. Operate the cutting knife carefully while the machine is on auto mode.

These tips will surely help you to maintain your melt flow index tester so that you can easily use it for a longer time. We hope that this article has given you sufficient information about the MFI tester. To know about melt flow index calculator and melt flow index formula for accurate measurement of melt flow index, you can give us a call at +91 9210903903 or email us at We will instantly assist you regarding your queries related to this product.

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