Fully Automated Plastometer with Motorised Weight Loading
The MFI-500-AUTO is an advanced computerised melt flow indexer featuring motorised automatic weight application. Designed for high-throughput laboratories, this instrument maximises reproducibility while minimising operator intervention—delivering consistent, reliable results test after test.
Overview
Melt flow index measurement is essential for characterising thermoplastic materials, particularly when reliability, precision, and repeatability are critical. The MFI-500-AUTO elevates standard melt flow testing by automating the weight loading process, eliminating a key source of operator variability.
Program your test parameters and the instrument automatically applies the correct load. This motorised system reduces handling time, increases throughput, and ensures consistent weight placement across every test cycle—making the MFI-500-AUTO the ideal choice for demanding QC environments.
Key Features
Motorized Automatic Weight Loading
The defining feature of the MFI-500-AUTO. The motorised system automatically applies test weights according to programmed parameters, reducing operator dependency and maximizing test-to-test consistency.
Dual-Method Testing
Supports both Method A (gravimetric) and Method B (volumetric) per ASTM D1238 and ISO 1133. Full compliance with international standards in one automated platform.
Computerised Operation
Integrated Mini PC with dedicated Melt Flow Index software manages test programming, automated weight application, timing, data acquisition, and results calculation.
Precision Temperature Control
PID-regulated heating maintains barrel temperature within ±0.1°C across a range up to 325°C, ensuring consistent test conditions for the full spectrum of thermoplastic materials.
Automatic Sample Cutting
Programmable cutting cycles with adjustable time intervals and cut counts. Combined with automatic weight loading, this enables true semi-automated operation.
Optimised Weight Set
Seven chrome-polished weights configured for automatic loading: 0.15, 0.875, 0.96, 1.2, 1.64, 5.0, and 11.6 kg. Combine all weights plus the 0.175 kg piston weight to achieve 21.6 kg for high-load testing.
Corrosion-Ready Construction
Engineered to handle aggressive polymers like PVC without compromising barrel integrity or measurement accuracy.
Digital Stopwatch
Built-in timer with 9999-second range supports precise timing for all test protocols.
Data Connectivity
RS-232 output with USB converter enables seamless data export for SPC integration, reporting, and 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 Motorised 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-AUTO plastometer with integrated Mini PC
- Motorised automatic weight loading system
- Melt Flow Index testing software
- Seven-piece chrome weight set (0.15–11.6 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).
Ideal For
- High-throughput QC operations with repetitive testing schedules
- Facilities seeking maximum reproducibility and reduced operator variability
- Laboratories requiring semi-automated or unattended operation
- Production environments where testing speed and consistency directly impact workflow
Why Choose Automated Weight Loading?
Manual weight placement introduces subtle variations—different positioning, timing delays, handling inconsistencies. Over hundreds of tests, these small differences accumulate into measurable variability.
The MFI-500-AUTO's motorised system applies weights identically every time, delivering the consistency that rigorous quality control demands. For laboratories running high test volumes or operating under strict reproducibility requirements, automation isn't a luxury—it's a practical necessity.