The Melt Flow Index Tester is designed according to authoritative standards for measuring Melt Flow Rate (MFR) and Melt Volume Rate (MVR) of thermoplastics and resins in molten state.
Widely used in plastic production, plastic products, petrochemical industries, as well as universities, research institutes, and quality inspection departments.
Features simple structure, easy operation, accurate measurement, and stable performance.
Melt Flow Rate (MFR) & Melt Volume Rate (MVR)
MFR: Mass of molten polymer extruded through a specified die under defined temperature, load, and piston position in 10 minutes (g/10min).
MVR: Volume of molten polymer extruded under the same conditions (cm³/10min).
MFR and MVR reflect viscosity and flow characteristics of thermoplastic materials in the molten state.
| Method | Application |
|---|---|
| Mass method (MFR) | Suitable for materials with slow flow |
| Volume method (MVR) | Suitable for materials with high flow (e.g., meltblown materials, PC, thin films) |
| Combined | Both methods can be performed simultaneously; flow rate ratio can be calculated |
Manual/automatic cutting: Automatically or manually cut extrudate for flexible testing.
Automatic cutting settings: Adjustable cutting times and intervals.
Accurate extrusion system: Standard die and piston dimensions ensure reliable results.
Fast temperature recovery: <4 minutes.
Result storage: Up to 20 MFR test results can be stored.
LCD display & key operation: Clear Chinese display, easy operation.
Mini thermal printer: Automatic printing of results.
| Parameter | Details |
|---|---|
| Extrudate Die | Diameter: Φ2.095±0.005 mm, Length: 8.000±0.025 mm |
| Loading Cylinder | Diameter: Φ9.550±0.025 mm, Length: 152±0.100 mm |
| Piston Rod | Diameter: 9.475±0.015 mm, Length: 6.350±0.100 mm |
| Standard Loads | 8 levels: 0.325kg – 21.600kg (3.187N – 211.82N) |
| Temperature Range | Room temperature – 450°C (500°C optional) |
| Temperature Accuracy | ±0.2°C |
| Temperature Resolution | 0.1°C |
| Cut Mode | Manual or automatic |
| Measurement Range | 0.1–300 g/10min (MFR) |
| Timing Accuracy | 0.1 s |
| Piston Displacement Accuracy | 0.01 mm |
| Storage | 20 automatic test results |
| Display | Chinese LCD, key operation |
| Dimensions (L×W×H) | 290×410×630 mm |
| Power Supply | AC 220V ±10%, 50Hz |
| Maximum Power | 600W |
| Industry | Usage |
|---|---|
| Plastic Production | Quality control, polymer characterization |
| Petrochemical Industry | Resin flow property testing |
| Research & Universities | Material research, polymer development |
| Quality Inspection Departments | Standard compliance testing for MFR/MVR |
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