How To Conduct Melt Flow Tests On PVC Granules?

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How To Conduct Melt Flow Tests On PVC Granules?

Posted By Gaurav Malhotra     September 14, 2023    


PVC granules, commonly known as Polyvinyl Chloride granules, have emerged as a versatile material with a wide range of applications. These tiny particles serve multiple purposes across various industries and play an integral role in manufacturing processes. From the production of PVC pipes, fitting cables and much more, these materials enable manufacturers to create intricate designs with precision while maintaining structural integrity.

Testing the melt flow index of these PVC granules is an important part of quality control. Thus, to make it easy for plastic product manufacturers to conduct melt flow test on the materials, we at Presto has designed a high-quality laboratory testing instrument known as a melt flow index tester.

The deluxe model of this quality testing equipment has been designed as per industry standards including ASTM D 1238-1992, ISO 1133, IS 2267-1972, IS 2530-1963, IS 10810-1984. This will provide highly accurate lab testing results to the manufacturers. In this blog, we will discuss brief information about the Presto melt flow index tester and how you can easily conduct a melt flow test on PVC granules.

Introduction to Melt Flow Testing

Melt flow testing is a quality control process used to determine the melt flow rate of a given material. This test measures the amount of material that can be melted and drawn through a small orifice in a specified amount of time. The resulting data can be used to compare different materials, batches of the same material, or changes in the manufacturing process.

Melt flow testing is an important part of quality control because it can help to ensure that PVC granules are consistent in quality and composition. This test can also be used to troubleshoot problems with the manufacturing process, such as poor melting or mixing of ingredients. By understanding the melt flow rate of a given material, manufacturers can optimize their processes to produce a consistent product.

Why is Melt Flow Testing Important?

Melt Flow Testing is an important quality control test for PVC granules. The test measures the rate at which the material flows under a specified load and at a specific temperature. The results of the test can be used to evaluate the consistency of the granules and to ensure that they meet quality standards.

PVC granules are used in a variety of applications, including plumbing, electrical wiring and much more. The properties of the granules play a significant role in determining the performance of these products. For example, if the granules are too soft, they may not withstand the pressure of water flowing through pipes. If they are too hard, they may crack or break under stress. Melt Flow Index Testing can help to ensure that the granules have the right properties for their intended use. You can read more on the importance of the melt flow index in polymer processing.

Presto melt flow tester deluxe model has been designed to make it easy for manufacturers to conduct melt flow index tests on the materials.

Now, let us discuss a brief about the Presto MFI tester for plastic granules.

All about melt flow index tester for granules

The Presto Melt Flow Index Tester Deluxe is a high-quality lab testing instrument designed to test the melt flow properties of plastic granules and other related materials. The test is carried out under prescribed conditions of temperature, load and piston position in a cylindrical cavity inside a heated metallic tube barrel. The Presto Melt Flow Index tester accurately provides all standard terms of temperature and pressure strictly as per standards ASTM D 1238-1992, ISO 1133, IS 2267-1972, IS 2530-1963, IS 10810-1984.

This sophisticated melt flow testing machine boasts a range of impressive features. With its microprocessor-based PID controller, it offers precise temperature control for accurate testing. The automatic sample-cutting feature enhances efficiency, while the digital preset timer ensures accuracy and repeatability in your tests.

The die steel barrel ensures uniform and consistent heating of the barrel/test cylinder, contributing to reliable results. Additionally, the corrosion-resistant finish ensures the longevity of this instrument, making it an excellent choice for your lab testing requirements. Presto is a top melt flow index tester manufacturer and offers the best melt flow index tester price for this quality testing equipment.

You can easily perform quality checks on polymers and other related materials with the help of this quality testing equipment.

Now, let us discuss a brief about the features and technical specifications of this quality testing equipment.

Features of Presto melt flow index tester

  • 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
  • Corrosion resistant finish
  • Easy to operate
  • Provides highly accurate lab testing results

Technical specifications of Presto melt flow index tester

  • Display: LED (Digital)
  • Temperature Range: Ambient to 400°C.
  • Accuracy: ± 1°C.
  • Resolution: 0.1°C.
  • Timer: Digital Preset up to 999 seconds (Changeable to Hrs:min: sec)
  • Dimensions of piston head: 9.47mm diameter
  • Diameter of heater tube cavity: 9.55mm ± 0.005mm
  • Dimensions of Die: 2.095mm ± 0.005mm
  • Weights: 1.2 kg; 2.16 kg; 3.8 kg & 5 kg
  • Sensor Type: PT 100
  • Temperature Controller: PID
  • Sample Type: Resins or Plastics
  • Sample Cutting: Automatic motorized
  • Power Supply: Single Phase, 220-240 AC, 50 Hz.
  • Paint: Powder Coated Grey and Blue Combination along with zinc/bright chrome plating.
  • Optional Accessory: Lab Weighing Balance 200gms
  • Standard Accessory: Orifice, Piston, Spoon, Plumb Line, Funnel, Material charger, Mirror, Tweezers, Barrel cleaner, Orifice cleaner, Sample cutter and Accessory stand

With these high-quality features and technical specifications, manufacturers can easily conduct melt flow index tests on the materials.

Read Also: melt flow index formula

Now, let us discuss some easy-to-follow steps for performing melt flow index tests on PVC granules.

Steps to perform accurate melt flow index test with Presto Melt flow Index tester

The Presto Melt Flow Index Tester is a top-of-the-line lab testing instrument that is used to measure the melt flow rate of thermoplastic polymers. The results of the tests conducted using this device are trusted by experts all over the world, due to the fact that the device meets or exceeds international standards.

 In particular, the Presto Melt Flow Index Tester complies with ASTM D 1238-1992, IS 2267-1972, IS 2530-1963, and IS 10810-1984 test standards. This ensures that the results of the tests are accurate and reliable. Furthermore, the device is easy to use and provides consistent results. As a result, the Presto melt flow index tester for thermoplastics is the preferred choice of experts worldwide.

 Below we have created a useful guide to test the melt flow properties of materials with ease.

  • When you buy Presto melt flow index then you need to level the machine accurately, before beginning the melt flow test for thermoplastics. Once you level it accurately and then start the machine by plugging the main socket into a 3-pin 15 amp socket.
  • Set the values and test duration timing on the digital timer. Set the configuration lock to zero.
  • The setting of input for RTD PT-100 sensor.
  • Turn to auto-tune ON/OFF.

In this way, you can easily test the melt flow properties of materials with ease. You can also maintain the Presto melt flow index tester easily. If you want to know more about melt flow index tester price then 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.

Source of Content: How To Conduct Melt Flow Tests On PVC Granules?