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Our semi-automatic melt flow index tester (GC-MI-DP) measures MFR of thermoplastics (PC, nylon, PP) under controlled temp/load. It has dual temperature control (RT-400℃), imported sensors, and a Hastelloy alloy barrel. Compliant with GB/T3682-2018, ISO 1133, and ASTM D1238, it enables electric loading/unloading and auto-cutting. The touchscreen displays data, and a micro printer outputs results. Ideal for plastic production, petrochemicals, and research labs needing efficient batch testing.
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Product Description
Model: GC-MI-DP
Items | Semi-Automatic Melt Flow Index Tester |
Temperature Range | RT-400℃ |
Temperature drift | 4hour， ≤0.5℃ |
Display Device | Touch screen controlled |
Temperature fluctuation | ± 0.2℃ |
Temperature uniformity of 10mm-70mm above the die | ± 1℃ |
Temperature display resolution | 0.1℃ |
Time display resolution | 0.1S |
Cutting timing range | 1-999S adjustable |
Mouth mold diameter | Φ2.095±0.005mm ( Mouth Radius : 1.05 mm + 0.005 ) |
Discharge hole length | 8.000 ± 0.025mm |
Piston rod diameter | 9.474 ± 0.007mm |
Piston rod length | 6.35 ± 0.13mm |
Loading container diameter | Φ9.550 ± 0.007mm |
Test range | 0.1-150g / 10min |
Farmar precision | ± 0.5% |
Displacement measuring encoder | Omron photoelectric rotary encoder |
Testing scope of mass method | 0.1-150g /10min |
Test range by volumetric method | 50-5000cm³/10min（It can measure up to 5000 cm3/10min by using the plugging die） |
Output way | Micro automatic printout |
Blanking way | Hand automatic cutting can be switched |
Test farmar ( weights) | total 8 grades, 8 sets of weights |
Power supply | AC220V±10% 50HZ |
The Semi-Automatic Melt Flow Index Tester (Model: GC-MI-DP) is a precision instrument designed to measure the Melt Flow Rate (MFR) of thermoplastics and gums. It calculates the mass of molten material extruded through a standard die in 10 minutes under controlled temperature and load—critical for evaluating material processability. What sets it apart is its balance of automation and flexibility: it reduces human error with electric loading/unloading and automatic material cutting/timing, while still allowing manual adjustments for specific test needs. It handles both high-temperature engineering plastics (e.g., polycarbonate, fluoroplastics) and low-temperature resins (e.g., polystyrene, polypropylene), making it a versatile tool for quality control and research.
Equipped with a double temperature control system and two imported sensors, the tester ensures stable heat distribution. It maintains a temperature range of RT-400℃, with a fluctuation of ±0.2℃ and a 4-hour drift of ≤0.5℃. The 10mm-70mm zone above the die has a temperature uniformity of ±1℃, guaranteeing consistent test conditions for reliable MFR results.
The motor-driven system automates heavy lifting (weight loading/unloading), material cutting, and timing (resolution 0.1s, adjustable 1-999s). This eliminates manual errors from hand-cutting or stopwatch use, while the option to switch between manual and automatic blanking lets operators adapt to non-standard samples.
The barrel is made of imported Hastelloy alloy (nitrided) to resist corrosion from humic acid, hydrochloric acid, and aggressive plastics. The die uses tungsten carbon steel, ensuring wear resistance even with frequent high-temperature testing. These components extend the instrument’s lifespan, ideal for high-frequency use.
In factories manufacturing plastic pellets, films, or injection-molded parts, the tester performs real-time quality checks to ensure raw materials meet MFR standards—preventing defective products due to poor material flow.
Researchers use it to characterize new polymer formulations, testing how additives or processing changes affect melt flow. Its ability to handle diverse plastics (from nylon to ABS) supports studies in material science.
Inspectors rely on its compliance with GB-T3682-2018, ISO1133:1997, and ASTM D1238 standards to verify imported/exported plastic materials, ensuring they meet international trade requirements.
No. | Name | Unit | Quantity | Remark |
1 | counterweight | Set | 1 | 0.325㎏、1.2㎏、2.16㎏、3.8㎏、5.0㎏、10.0㎏、12.5、21.6k g（in a load within） |
2 | counterweight tray | Set | 1 | in a load within |
3 | charging hopper | Set | 1 | |
4 | die cleaning load | Set | 1 | |
5 | loader bar | Set | 1 | |
6 | barrel cleaning load | Set | 1 | assemblies |
7 | rod | Set | 1 | （in a load within） |
8 | die | Set | 1 | |
9 | gauze | Roll | 2 | |
10 | printer paper | Roll | 2 |
