Melt Flow Index Tester AUTO GBB-R

The GBB-R Melt Flow Index Tester is a precision testing instrument for packaging materials, developed and manufactured by the Guangzhou Standard Research and Development Team in accordance with ISO, GB standards, and market requirements. It is designed to measure thermoplastic melt mass flow rate (MFR) and melt volume flow rate (MVR).

Test Principle The instrument calculates the melt mass flow rate (MFR) and melt volume flow rate (MVR) by extruding molten material through a die with specified length and diameter under designated temperature and load conditions.

Standard GB/T 9643, GB/T 3682, JB/T 5456, ISO 1133

Technical Parameters

• Measurement Methods: Mass method (MFR), volume method (MVR)
• Mass Method Measuring Range: 0~200 g
• Volume Method Measuring Range: 0~80 cm3
• Mass Measurement Accuracy: 0.1 g
• Automatic Timing of Test Time: 0.1~999.9 s
• Temperature Control Range: Room temperature ~300℃
• Temperature Control Accuracy: ±0.5℃
• Temperature Fluctuation: 1℃
• Displacement Accuracy: 0.1 mm
• Cylinder Temperature Recovery Time After Feeding: ≤4 min
• Cutting Method: Automatic timing cutting (0.1~999 s), arbitrary cutting
• Die Inner Diameter: Φ2.095±0.005 mm
• Barrel Inner Diameter: Φ9.550±0.025 mm
• Standard Load: 3.187~211.82 N total 8 levels, load accuracy ≤±0.5%
• Size: 450 mm×200 mm×500 mm; 500 mm×280 mm×500 mm
• Power: 1000 W
• Power Supply: AC 220 V, 50 Hz

Features

• Advanced configuration with PLC control for fast and accurate temperature rise.
• Integration of mass method (MFR) and volume method (MVR) with manual and automatic cutting methods.

Application Fields

Polymer Plastic Raw Materials, suitable for determining the melt index of various high-polymer plastic materials such as polyethylene, polystyrene, polypropylene, ABS resin, polyoxymethylene resin, polycarbonate, nylon, and fluoroplastics at high temperatures.