Advanced Computerised Plastometer for Thermoplastic Characterisation
The MFI-500-AP is a fully computerised melt flow indexer engineered for laboratories that demand reliable, repeatable measurements. Supporting both gravimetric and volumetric test methods, this precision instrument delivers the accuracy your quality control and R&D work requires.
Overview
Melt flow index is one of the most practical indicators of how a thermoplastic will behave during processing. It correlates inversely with molecular weight and viscosity—higher flow rates signal lower viscosity and easier processing, while lower rates indicate higher molecular weight and greater mechanical strength.
The MFI-500-AP brings laboratory-grade accuracy to daily quality control without the complexity of research-only instruments. It's built for the workflow realities of busy QC departments—fast setup, straightforward operation, and results you can trust.
Key Features
Dual-Method Testing
Supports both Method A (gravimetric) and Method B (volumetric) per ASTM D1238 and ISO 1133. One instrument, full flexibility.
Computerised Operation
Integrated Mini PC with dedicated Melt Flow Index software handles test programming, timing, data acquisition, and results calculation—eliminating manual timing errors and streamlining documentation.
Precision Temperature Control
PID-regulated heating maintains barrel temperature within ±0.1°C across a range up to 325°C, ensuring consistent test conditions from polyethylene to high-temperature engineering resins.
Automatic Sample Cutting
Programmable cutting cycles remove operator variability from gravimetric measurements. Set your time interval and cut count—the instrument handles the rest.
Complete Weight Set
Seven chrome-polished weights ship standard: 1.2, 2.16, 3.8, 5.0, 5.0, 6.6, and 10 kg. Combine the larger weights to achieve 21.6 kg for high-load testing per ASTM specifications.
Corrosion-Ready Construction
Materials of construction accommodate aggressive polymers like PVC without compromising barrel integrity or measurement accuracy.
Digital Stopwatch
Built-in timer with 9999-second range and high resolution supports both automated and manual test protocols.
Data Connectivity
RS-232 output with USB converter enables data export to external systems for SPC integration or archival.
Technical Specifications
| Parameter | Specification |
|---|---|
| Test Methods | ASTM D1238 / ISO 1133 Methods A & B |
| Temperature Range | Up to 325°C |
| Temperature Resolution | ±0.1°C |
| Piston Stroke | Up to 25 mm |
| Stroke Resolution | ±0.1 mm |
| Timer Range | Up to 9999 seconds |
| Weight Loading | Motorized automatic |
| Data Interface | RS-232 with USB converter |
| Certification | CE marked |
Applications
Polymer Types
- Commodity resins: PE, PP, PS, PVC
- Engineering plastics: PET, PMMA, nylon (PA), PB
- Specialty polymers: PTFE and fluoropolymers
Industries
Packaging · Automotive · Aerospace · Medical devices · Construction · Textiles · Pipe and fittings · Furniture · Toys · Consumer products
Standards Compliance
- ASTM D1238
- ISO 1133
- DIN 1133
- EN 1133
- UNE 1133
What's Included
- MFI-500-AP plastometer with integrated Mini PC
- Melt Flow Index testing software
- Seven-piece chrome weight set (1.2–10 kg)
- Standard piston and capillary die
- Complete tool kit for operation and cleaning
- USB interface cable
Note: Gravimetric method calculations require weighing extruded samples to 0.001 g resolution. A precision analytical balance is recommended (not included).