Melt Flow Index Tester for Thermoplastics, MFR & MVR Testing Machine with Micro

The XNR-400B Melt Flow Indexer is a dedicated test apparatus for determining the Melt Mass-Flow Rate (MFR) and Melt Volume-Flow Rate (MVR) of thermoplastic materials. It is engineered and manufactured in conformity with GB/T3682-2000, ASTM D1238-98, JB/T5456, ISO1133 and other relevant specifications.

For MFR measurement, automatic sample cutting is implemented; the cutting interval is regulated via PLC, and sample mass is acquired using an analytical balance. For MVR testing, a photoelectric encoder captures piston displacement alongside automatic timing. The system first records the duration for the piston to traverse a specified travel distance, then calculates the MVR value by applying the corresponding formula.

Both MFR and MVR test results can be visualized on the LCD panel and exported via the onboard micro printer. This unit delivers high measurement precision, user-friendly operation and consistent running performance.

It accommodates high-melting engineering plastics including polycarbonate, fluoroplastics and nylon, as well as low-melting materials such as polyethylene, polypropylene, polystyrene, ABS resin and polyacetal resin. It finds extensive deployment within plastic manufacturing, petrochemical sectors, alongside accredited laboratories, research institutes and commodity inspection authorities.

Melt mass flow rate (MFR) and melt volume flow rate (MVR) are obtained by extruding molten test material out of the plastometer barrel under predefined temperature and loading conditions.

To acquire the MFR value, extrudate fractions collected within set time intervals are weighed, and the extrusion rate is computed and documented in g/10 min.

For MVR testing, the system detects either the piston travel distance over a fixed duration or the time consumed for the piston to travel a designated displacement; the final MVR output is expressed in cm³/10 min.

A mutual conversion between MVR and MFR can be realized provided the melt density of the sample under the specified test environment is available.

This instrument complies with the test specifications of GB3682, ISO1133, JB/T5456, ASTM D1238 and ASTM D3364.

Comprehensive technical support and after-sales services are accessible for all Melt Flow Index Testers we supply. Our technical specialists stand by round-the-clock through telephone, email and online instant messaging channels to address your inquiries and technical issues.

We supply thorough operation guides and tutorial videos to assist operators in maximizing the testing performance of the Melt Flow Index Tester.

Multiple warranty schemes and custom service agreements are also available to sustain the optimal operating state of your equipment. Our warranty coverage extends to material and manufacturing defects for a maximum term of 5 years. Service agreements encompass on-site maintenance, troubleshooting and replacement of faulty components.

Should you require further information regarding the technical support and service packages for our Melt Flow Index Testers, feel free to reach out to our team.