Melt Flow Index Testers

TMI and Ray-Ran have been manufacturing melt Flow index testers for plastics for decades.  Currently Testing Machines Inc. has three units available: one is a very basic melt flow indexer aat a price that is too-good-to-miss to an automatic melt indexer with top performance even on ASTM d1238 Procedure B for self timing that is accurate to 0.1 degree C for determining mass flow rate.

Ray-Ran, owned by TMI's parent company, is one of the top manufacturers of these 46-02 Melt flow testers, giving you the ability to easily get accessories globally or buy custom manufactured components to change the system performance. TMI has melt index weights, replacement hardened steel cylinder liners and a choice of 220-240 volt or 110 Volt for melt flow index sales in USA.

Mass flow index tester operation, also called an "extrusion plastometer" or sometimes "MFI", tests for the melt flow rate (MFR) which is calculated from the average mass extruded and cut at an interval and then factored for the calculated rate in 10 minutes.  Higher density materials consisting of long molecular chains take longer to extrude which provides useful data for compounders and labs, depending on the exact method being used, ASTM D-2388 part A, or Part B.

Product Description Property/Function Catalog #

Basic Melt Flow Indexer

The Basic Melt Flow Indexer, often abbreviated as "MFI", is an affordable-price tabletop instrument used to test the melt flow resistance (MFR) of a wide range of thermo-plastic materials. The tester conforms to all National and International melt flow resistance standards, including BS EN ISO 1133 and ASTM D1238. Any temperature within 120°C-450°C (248°F-842°F) can be accurately controlled.

Melt Flow Index Testers


Standard Melt Flow Test Equipment

The 6MBA is the standard model for sale within the Ray-Ran Range of Melt Flow Test Equipment. The manually operated test procedure is very simple. Molten Polymer is extruded through a closely controlled orifice (die) from the apparatus using pre-set conditions of temperature and pressure produced by a dead weight system. The extruded polymer is cut off manually and is then weighed. Using the time interval to extrude the polymer its flow rate over 10 minutes can easily be determined, thus giving the Melt Flow Index (MFI) or Melt Mass Flow Rate (MFR) in g/10 min. By conducting a simple density test at test temperature on the same material using the same pre-set conditions and a known piston travel distance the Melt Volume Rate (MVR) can also be determined.

Melt Flow Index Testers


Advanced Melt Flow System

The 6MPCA is the most advanced digital model offered within the Ray-Ran range of melt flow index testers. The operating procedure is simple to undertake using its on-board advanced microprocessor technology. The large LCD provides onscreen instructions, reducing user error, and test parameters are easily entered via the keypad. The apparatus can accurately determine results for MFR, MVR and Density at test temperature.

Melt Flow Index Testers


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