Melt Index Tester

MFR and MVR for determining the melt mass flow rate (MFR) and melt volume flow rate (MVR) of plastics, plastic materials, and resin raw materials: Melt mass flow rate (MFR) and melt volume flow rate (MVR) of thermoplastic melts

Used for measuring the melt flow rate (MFR) and melt volume flow rate (MVR) of various plastics and resins in the viscous flow state at a certain temperature and load, per 10 minutes through a standard orifice. It is suitable for engineering plastics with higher melting temperatures such as polycarbonate, polyarylsulfone, fluoroplastics, and nylon, as well as plastics with lower melting temperatures such as polyethylene (PE), polystyrene (PS), polypropylene (PP), ABS resin, polyformaldehyde (POM), and polycarbonate (PC) resins. It is widely used in the plastic production, plastic products, petrochemical, and other industries.

Melt Flow Rate (MFR) refers to the extrusion rate of molten resin through a die of specified length and inner diameter under prescribed temperature, load, and piston position conditions. The mass extruded in a specified time is defined as Melt Mass Flow Rate (MFR), with units of grams per 10 minutes (g/10min); the volume extruded in a specified time is defined as Melt Volume Flow Rate (MVR), with units of cubic centimeters per 10 minutes (cm3/10 min). Melt Flow Rate can characterize the flow properties of thermoplastics in their molten state.

Applicable standards:

Determination of Melt Mass Flow Rate and Melt Volume Flow Rate of Thermoplastics - GB/T 3682-2000

Measurement of Melt Mass Flow Rate (MFR) and Melt Volume Flow Rate (MVR) of Thermoplastics - ISO1133:1997

Standard Test Method for Determining the Melt Flow Rate of Thermoplastics by Extrusion Plastometer  - ASTM D1238

Product Introduction:

Color LCD display (Chinese, English, bilingual operating system).
Manual, automatic cutting and feeding integrated.
Dual temperature control system, more precise temperature control accuracy, higher heating efficiency.
Dual import sensors, more precise vertical temperature gradient, can be used independently, extending service life.
The barrel is made of imported Haynes alloy with nitriding treatment, the die is made of carbon tungsten steel.
The insulation bucket is made of full SUS304 stainless steel.

Automatically calculate the result and print it out.

Main technical parameters:

Display type: Color LCD screen

Temperature range: 0°C-450°C

Temperature control accuracy: ±0.5°C
Temperature fluctuation: ±0.1°C
Temperature uniformity: ±1℃
Temperature display resolution: 0.1°C                             

Time display resolution: 0.1S
Barrel diameter: Φ2.095±0.005mm                                   

Feeding port length: 8.000±0.025mm
Diameter of the loading tube: Φ9.550±0.025mm             

Hopper length: 152±0.025mm

Piston rod head diameter: Ф9.474±0.007mm                   

Piston rod head length: 6.350±0.100mm
Test load/weight accuracy: 325-21600g non-contiguous，A full set of 8-level weights (accuracy ≤ ±0.5%)

Testing range: MFR: 0.1~100g/10min                                MVR：0.1～3500cm³/10分钟
Output method: Automatic print output
Cutting method: manual and automatic cutting integrated

Test load: 8 levels, 8 sets of weights

Temperature recovery time: ≤4min

Timing range: 0~6000s

Timing resolution/precision: 0.001s/0.01s

Countdown time setting: can be freely set (300s/240s)

Automatic cutting device: set interval time (can be set arbitrarily from 1 to 2000 seconds), automatically completes cuttingPower supply voltage: AC220V±10% 50HZ, AC110/60Hz, customized according to requirements

Net weight/Gross weight: Approximately 41KG/61KG

Measurement result: MFR/MVR

Weight loading method: manual loading