The 6MPCA is the most advanced model offered within the Ray-Ran Range of Melt Flow Indexers. The operating procedure is very simple to undertake using its on board advanced microprocessor technology. The large liquid crystal display (LCD) provides simple on screen instructions reducing user error and the test parameters are easily entered via the alpha numeric membrane keypad. The apparatus can accurately determine results for MFR, MVR and Density at test temperature.

To conduct a test molten polymer is extruded through a closely controlled orifice (die)from the apparatus using user set test parameters of temperature and pressure produced by a dead weight system. Rotary encoder technology accurately determines piston displacement as the polymer is extruded and automatically starts the test when the piston is in the critical zone for testing.

Simple Parameters are entered such as user names, material reference numbers and batch numbers which are stored in lists for future recall and results presentation. Other parameters which are user defined are multi slicing and hi – lo limits.

The Multi slicing feature of the 6MPCA makes flow curve analysis instantly recognizable when the results are downloaded to the supplied Techni-Test software. The operator inputs data for the amount of slices to be made during the setup process and the microprocessor accurately records the MFR result at each slice during the test.

For quality control purposes the 6MPCA microprocessor can be set with High and Low limits which are clearly defined when the results are downloaded to a PC showing the user instantly if the material is a pass or fail.

If a materials density at test temperature is not known then a simple density test can be conducted by extruding molten polymer over a selected test distance, weighing the cut off and inputting the weight into the microprocessor. The density result will be automatically calculated and stored for you to conduct your MFI test.

After each test has been conducted the results are displayed on the LCD giving The MFI (g/10mins), Shear Stress (Pa), Shear Rate (1/sec), Viscosity (Pa/sec) and the Melt Volume Rate (cc/10min) which can then be downloaded via the on board RS232 connector or the Ethernet connection to Ray-Ran’s dedicated Techni-Test Software where results are displayed in graphical and tabular form. CSV files of the results can also be saved which can be exported into other user programs for generating test reports. The apparatus can also be supplied with an optional thermal printer for easy results printout if the machine is not connected to a network or PC.

The 6MPCA Melt Flow System is supplied as standard with a replaceable hardened steel cylinder liner, standard test die and piston along with 2.16 kg test load and cleaning ancillaries. The apparatus has dual Zone heating technology to keep the maximum allowable temperature variation along the length of the cylinder liner in accordance with the International test standard ISO1133

Optional weights can be supplied to cover all testing parameters to International Test standards and for the heavier weights the optional weight loader can fitted to the apparatus for ease in loading the piston. The weight loader can also be used as a hold back feature for materials which have a high flow rate.

All documentation is supplied including the Techni-Test software on CD, a product user manual and a fully traceable calibration certificate.

Testing Features












Technical Specification






Optional Ancillaries


Weight (kg) 42
Width (cm) 57
Depth (cm) 58
Height (cm) 70