Information on the most widely used ASTM standards within the materials testing industry
Model: MFI402, Plastometer ISO 1133, MFI test MFR, MVR
MFI402 Plastic Melt Flow Index Meter is for melt mass-flow rate (MFR), determined by extruding molten material from the cylinder of a plastometer through a die of specified length and diameter under preset conditions of temperature and load. Used to measure the melt mass flow rate of thermoplastic plastics under specific temperatures and pressures, reflecting the flow performance of materials through standardized testing.
Feature of MFI402:
LCD display, Economical price, MFR method, motorized cutting, with micro-printer.
General introduction
MFI402 Plastic Melt Flow Index Meter is for melt mass-flow rate (MFR), determined by extruding molten material from the cylinder of a plastometer through a die of specified length and diameter under preset conditions of temperature and load. Used to measure the melt mass flow rate of thermoplastic plastics under specific temperatures and pressures, reflecting the flow performance of materials through standardized testing.
Feature of MFI402:
LCD display, Economical price, MFR method, motorized cutting, with micro-printer.
There are two main procedures:
Procedure A (for MFR): This involves manually cutting and weighing the extruded plastic at timed intervals.
Procedure B (for MVR): Instead of weighing, this method tracks how far the piston moves using displacement sensors, giving you volume flow.
Accuracy is everything in these tests. Small changes in temperature, load, or die size can skew the results. That’s why standardized test conditions—like those in ASTM D1238 or ISO 1133—are followed strictly.
Model MFI402 is for only MFR, so deduct the related parts with MVR and reduced the cost.
Main Features
Mainframe is desk-top model, with beautiful appearance and stable performance, high accuracy, easy to use.
With high sampling, and high control rate.
With Micro-printer to print test result.
Only remain MFR method to meet many kinds materials, reduce cost to make this model economical price and budgetary project.
Manual and motorized both way cutting sample.
Approximately 7 grams of the material is loaded into the barrel of the melt flow apparatus, which has been heated to a temperature specified for the material. A weight specified for the material is applied to a plunger and the molten material is forced through the die. A timed extrudate is collected and weighed. Melt flow rate values are calculated in g/10 min.
ISO 1133 Plastics - Determination of the Melt Mass-Flow Rate (MFR) and Melt Volume-Flow Rate (MVR) of Thermoplastics
ASTM D1238 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer
ASTM D3364 (for PVC), BS 2782, DIN 53735, JIS K7210
Main technical specification
| Model | MFI402 (XNR-400A) |
| Temperature range | Ambient temperature to 450℃ stepless adjustable, fixed point temperature control |
| Temperature fluctuation | ±0.5℃ |
| Temperature resolution | 0.1℃ |
| Weight | 8 levels, total 21.6kg mass |
| Measuring method & range | MFR (0.1-100)g/10min |
| Heating power | 450W |
| Extruding part spec. | |
| Inner diameter of die | φ2.095±0.005mm |
| Length of die | 8.000±0.025mm |
| Inner diameter of filling canister | Φ9.550±0.025mm |
| Weight | Frame: 30kg Standard weights: 25kg |
| Power | 220V, 50HZ/110V, 60HZ |
| Display | LCD display temperature, time, sampling number etc. |
| Micro-printer | YES |
| Specimen cutting mode | Automatic |
Main Accessories
| Item | Quantity |
|---|---|
| Frame | 1 set |
| Die (φ2.095) tungsten carbide material | 1 pc |
| No. 1 weight (piston rod + weight tray): 325g | 1 pc |
| No. 2 weight: 875g | 1 pc |
| No. 3 weight: 1835g | 1 pc |
| No. 4 weight: 3475g | 1 pc |
| No. 5 weight: 4675g | 1 pc |
| No. 6 weight: 5000g | 1 pc |
| No. 7 weight: 2500g | 1 pc |
| No. 8 weight: 2915g | 1 pc |
| Scraper | 1 pc |
| Sample loading hopper | 1 pc |
| Water level | 1 pc |
| Die cleaning rod | 1 pc |
| Cylinder cleaning rod | 1 pc |
| Sample loading rod | 1 pc |
| Sample plate | 1 pc |
| Electric wire | 1 pc |
| Cleaning gauze and gloves | 1 pc |
| Accessories containing case | 1 pc |
| Documents (Manual, packing list, certificate) | |
Standard
ISO 1133: Plastics -- Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics.
ISO 1133 standard specifies two procedures for the determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastic materials under specified conditions of temperature and load. One is a mass-measurement method. The other is a displacement-measurement method. Normally, the test conditions for measurement of melt flow rate are specified in the material standard with a reference to ISO 1133. The test conditions normally used for thermoplastics are listed in annexes.
ASTM D1238 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer
ASTM D1238 test method test method covers the determination of the rate of extrusion of molten thermoplastic resins using an extrusion plastometer. it is particularly useful for quality control tests on thermoplastics. The data produced by ASTM D1238 test serves to indicate the uniformity of the flow rate of the polymer as made by an individual process. It is not to be used as an indication of uniformity of other properties without valid correlation with data from other tests.
ASTM D3364: Standard Test Method for Flow Rates for Poly(Vinyl Chloride) with Molecular Structural Implications
ASTM D3364 test method is an extension of Test Method D1238 specific to the measurement of flow rates of poly(vinyl chloride) (PVC) compounds while detecting and controlling various polymer instabilities associated with the flow rate. it is useful for quality-control tests on PVC compounds having a wide range of melt viscosities. Measurements are made at shear rates close to 1 s−1.
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