Automatic Melt Flow Indexer (MFI) - QualiFi™ 6000 Series
Automatic Melt Flow Indexer (MFI) – QualiFi™ 6000 Series
The QualiFi™ 6000 Series is a high-end extrusion plastometer range designed for modern quality control laboratories and high-throughput testing environments. It includes two models: the semi-automatic QualiFi™ 6000SA and the fully automatic QualiFi™ 6000A, both built as floor-standing systems to deliver highly accurate measurements of thermoplastic resin flow properties.
This Melt Flow Index Tester measures both melt mass-flow rate (MFR) and melt volume-flow rate (MVR) with strong consistency and repeatable results. It supports a wide temperature control range from 50°C to 450°C, making it suitable for testing standard polymers as well as high-temperature engineering materials.
With a measurement capacity ranging from 0.1 to 100 g/10min for MFR and up to 3000 cm³/10min for MVR, the QualiFi™ 6000 Series is engineered for precise polymer characterization. Integrated pneumatic control systems and advanced safety features streamline operation, reduce manual handling, and enhance testing efficiency while maintaining reliable Melt Flow Index results.
Application
A highly automated Melt Flow Indexer is critical in laboratory and industrial environments where testing speed, safety, and high sample throughput are key operational requirements. The QualiFi™ 6000 Series is well-suited for a wide range of polymer testing applications, including:
High-Frequency Production Quality Control:
Efficiently supports incoming and outgoing inspection of polyolefins and specialty resins. Pneumatic cleaning functionality helps reduce turnaround time between tests and improves workflow efficiency.
Engineering Plastics Evaluation:
Delivers stable performance for high-viscosity and high-temperature materials such as nylon, polycarbonate, and fluoropolymers, ensuring consistent flow measurement under demanding conditions.
Petrochemical & Compounding Operations:
Supports continuous process monitoring of polymer melts directly from production streams, enabling quick sample transitions without the need for barrel disassembly.
Plastics Manufacturing Quality Assurance:
Used for validating production batches and verifying supplier material consistency against defined MFR specifications in accordance with ISO 1133 and ASTM D1238 standards.
Regulated & Accredited Testing Laboratories:
Provides traceable and reliable test data for certification and third-party analysis, supported by detailed data logging, user access control, and measurement accuracy verified under CNAS-aligned systems.
Product Table Comparison
| Feature | QualiFi™ 6000SA | QualiFi™ 6000A |
|---|---|---|
| Automation Level | Semi-automatic with pneumatic features | Fully automatic with full pneumatic operation |
| Weight Selection Mode | Manual pre-selection | Software-controlled multi-weight selection |
| Preload / Weight System | Electric loading - weight preset manually, auto lifted/lowered | Electric loading with programmable multi-stage variable load function |
| Pneumatic Compaction & Extrusion | Yes (10-50 kg adjustable load) | Yes (10-50 kg adjustable load) |
| Pneumatic Barrel Cleaning | Yes, compressed air assisted | Yes |
| Timer Resolution | 0.001 s | 0.0005 s |
| Safety Features | Weight fall-prevention guard | Weight safety guard & movable protective cover |
| Dimensions (L×W×H) | 580 × 480 × 1450 mm | 600 × 500 × 1450 mm |
| Main Unit Weight | 100 kg | 120 kg |
Why Choose the QualiFi™ 6000 Series for Melt Flow Index Testing?
Pneumatic Workflow Automation:
Integrated pneumatic force control (10–50 kg) manages material compaction and residual extrusion with high consistency. This removes variability linked to manual rod handling, improves repeatability for high-viscosity polymers, and reduces operator effort during routine testing.
Improved Operational Safety:
Designed as floor-standing instruments, both models include a dedicated weight fall-prevention guard that physically restricts uncontrolled weight descent during operation. A protective movable cover also helps isolate operators from high-temperature zones.
Fully Automated Testing – QualiFi™ 6000A:
The QualiFi™ 6000A offers software-driven multi-weight selection, removing the need for manual weight handling. Users can configure multi-stage load sequences directly through the interface, supporting advanced and multi-step test protocols with ease.
High Thermal Stability Control:
A dual PID temperature regulation system maintains tight thermal consistency with a gradient within ±0.1°C along the barrel above the die. Rapid thermal recovery—under 2 minutes after loading—helps maintain test efficiency and cycle speed.
Compliance and Measurement Traceability:
The QualiFi™ 6000 Series is CE certified (EN 61010-1, EN 61326-1) and has demonstrated strong performance in CNAS inter-laboratory proficiency testing, with Z-scores between -0.07 and +0.11. This ensures dependable results aligned with ISO 1133 and ASTM D1238 standards.
