MFR MVR MFI Melt Flow Index Equipment
Plastic Industry Melting Point Tester for determining melt flow rate of thermoplastics
Download Technical Brief (PDF) Equipment Overview
This Melt Flow Index Test Equipment is used to determine the melt flow rate (MFR) of thermoplastics in g/10min units. It is designed for testing polyethylene, polypropylene, polyoxymethylene, ABS resin, polycarbonate, nylon, and various fluoride plastics and other polymer materials.
Working Principle
The equipment operates by heating the test material to its molten state under specified temperature conditions. The molten material is then extruded through a standardized orifice under controlled load conditions. The melt flow rate represents the polymer material's fluidity and viscosity properties in the molten state, calculated as the average mass extruded over a 10-minute period.
Calculation Formula: MFR (θ, mnom) = tref * m / t = 600 * m / t (g/10min)
Where: θ = Test temperature, mnom = Nominal load (Kg), m = Average cut mass (g), tref = Reference time (10min): 600, t = Cut time interval (seconds)
Calculation Example
Sample cut masses: 0.081g, 0.086g, 0.081g, 0.089g, 0.082g
Average mass: m = (0.081 + 0.086 + 0.081 + 0.089 + 0.082) ÷ 5 = 0.084g
MFR = 600 * 0.084 ÷ 30 = 1.680 g/10min
Applications
Designed for industrial manufacturing facilities, quality control laboratories, and research institutions involved in plastic production and material development.
Standards Compliance
Manufactured in accordance with GB/T3682-2000 standard requirements.
Technical Specifications
| Model | Plastic MFI Melt Flow Index Test Equipment |
| Discharge Port Diameter | Φ2.095±0.005mm |
| Discharge Port Length | 8.000±0.025mm |
| Barrel Diameter | Φ9.550±0.025mm |
| Barrel Length | 152±0.1mm |
| Piston Head Diameter | 9.475±0.015mm |
| Piston Head Length | 6.350±0.100mm |
| Standard Test Load (8 grades) | - Grade 1: 0.325kg
- Grade 2: 1.200kg
- Grade 3: 2.160kg
- Grade 4: 3.800kg
- Grade 5: 5.000kg
- Grade 6: 10.000kg
- Grade 7: 12.500kg
- Grade 8: 21.600kg
|
| Load Test Relative Error | ≤0.5% |
| Test Method | Mass Method (MFR) |
| Temperature Range | Room Temperature - 450℃ |
| Temperature Accuracy | ±0.2℃ |
| Temperature Resolution | 0.1℃ |
| Timing Range | 0.1 - 999 seconds |
| Timing Accuracy | 0.1 seconds |
| Material Cutting | Automatic or Manual |
| Display | LCD |
| Printing | Equipped with printer for test reports |
| Working Conditions | Ambient temperature 10℃-40℃; Relative humidity 30%-80% |
| Dimensions | 250*350*510mm (L*W*H) |
Product Images
