MFI Testers | Capillary Rheometers | Visco Sensors & Indicators
ASTM D1238, ISO 1133-1/2, ASTM D3835 & ISO 11443 Compliant
Trusted by Reliance, Foxconn, Gharda, Syensqo, Avient, and Celanese
Globally Recognized, Locally Trusted
Contact us to learn how top recycling customers use the LMI 5500 for Intrinsic Viscosity (IV) of PET & rPET materials
Advanced Technical Capabilities
ASTM D1238
MFI Testing Standard
ISO 1133-1/2
Global Compliance
±0.1°C Precision
Temperature Control
Dual Range Options
Load Cell Configurations
PVT Data Collection
Rheological Analysis
Real-time Monitoring
Process Control Integration
Dynisco LMI5500 Series Melt Flow Indexer
ASTM D1238
Testing Standard
ISO 1133-1/2
Standard Compliance
±0.1°C
Temperature Precision
0.1 - 50 g/10min
MFR Measurement Range
±0.5%
Measurement Accuracy
LCD Touchscreen
User Interface
Manual & Auto Cut
Operation Modes
USB & LAN
Data Interface
Automatic Cleaning
Maintenance Feature
Precision Melt Flow Testing
- • Advanced MFI Testing: High-precision temperature control with ±0.1°C stability for accurate and repeatable measurement of melt flow rate and melt volume rate.
- • Comprehensive Testing: Supports all test procedures A, B, C and D according to ASTM D1238 and ISO 1133 standards with measurement accuracy of ±0.5%.
- • User-Friendly Operation: Intuitive touchscreen interface with automatic testing parameters and built-in standard testing conditions for common polymers.
- • Industry-Leading Reliability: Robust design with automatic barrel cleaning system and easy maintenance features trusted by industry leaders including Reliance, Foxconn, and Avient.
Dynisco LCR7000 Series Capillary Rheometer
ASTM D3835
Primary Standard
ISO 11443
ISO Compliance
25-400°C
Temperature Range
0.001-5000 1/s
Shear Rate Range
7,500 - 30,000 psi
Pressure Range
1-50 mm/min
Piston Speed
0.5-3.0 mm
Capillary Diameters
Multi-Bore Testing
Testing Capability
PVT Measurements
Additional Feature
Complete Polymer Characterization
- • Advanced Rheological Analysis: Comprehensive characterization of polymers with precise viscosity measurements across a wide range of temperatures and shear rates.
- • Multi-Functional Testing: Supports multiple testing configurations including capillary rheometry, PVT measurements, and extensional viscosity testing in a single instrument.
- • Superior Data Acquisition: High-resolution pressure transducers and precise temperature control ensure accurate measurements compliant with ASTM D3835 and ISO 11443 standards.
- • Versatile Applications: Used for R&D, quality control, and process optimization in polymer manufacturing, with dedicated software for comprehensive data analysis and reporting.
Dynisco ViscoIndicator & Process Sensors
0-30,000 psi
Pressure Range
±0.5% Full Scale
Accuracy
Up to 400°C
Temperature Range
0.01-10 VDC
Output Signal
NaK Filled
Sensing Technology
Hazardous Area
Certifications
Real-Time Monitoring
Process Control
Digital Display
Indicator Interface
Industry 4.0 Ready
Connectivity
Process Control Excellence
- • Real-Time Process Monitoring: High-performance pressure and temperature sensors for continuous monitoring of extrusion and injection molding processes with excellent accuracy and response time.
- • Superior Durability: NaK-filled sensing technology ensures long sensor life and reliable operation in harsh processing environments with abrasive materials and temperature fluctuations.
- • Quality Control Improvement: Enhances product consistency and reduces scrap by providing accurate pressure and temperature data for process optimization and troubleshooting.
- • Integrated Solutions: Complete systems including sensors, indicators, and control software with Industry 4.0 connectivity for seamless integration with existing plant infrastructure.
Explore Our Dynisco Range for Precision Testing
Accurate Intrinsic Viscosity (IV) Measurement – Dynisco LMI 5500
Focus your QA upgrades with the proven Dynisco LMI 5500 Series, delivering reliable, repeatable Intrinsic Viscosity (IV) correlation through stable melt flow / apparent viscosity data. Plants across PET resin, recycling and preform segments rely on the 5500 for day‑to‑day IV trending, with optional multi‑weight sequencing (where configured) supporting advanced rheology studies. Dynisco solutions are widely adopted across India and within OEM-linked recycling ecosystems (Starlinger / EREMA).*
LMI 5500 Advantage: Immediate deployment, proven correlation stability, simplified operation, and lower acquisition cost. Consistency still begins with disciplined sample preparation—follow the controlled pre‑drying & handling workflow below for every IV (or correlated melt flow / apparent viscosity) run.
Recommended PET Sample Preparation (Baseline Guideline)
- Pre‑Dry Resin: Use a calibrated vacuum oven at 120 °C (typically 120 ± 2 °C) for 4 hours (extend to 4–6 h if initial moisture is high) until moisture ≤ 0.005% (50 ppm) or per your internal spec.
- Moisture Verification: If available, confirm with a moisture analyzer immediately after drying. Reject / re‑dry if above spec.
- Cool & Transfer Quickly: Minimize ambient exposure (hydrolysis risk). Move material in a warmed, sealed container to the instrument feed.
- Clean Barrel & Tooling: Purge previous material, inspect for carbonization.
- Stabilize Temperature: Allow the Dynisco LMI barrel to equilibrate at 285 °C.
- Charge & Preheat: Load the specified mass, insert piston, allow the preheat dwell (per method / standard) before initiating the test sequence.
- Multi‑Weight / Shear Profiling: Where equipped, use automated multi‑weight sequencing to gather shear‑rate dependent data correlatable to IV and broader rheological fingerprints.
Reducing Hazardous Solvent Use
The move from classical solution viscometry (phenol based / regulated solvent systems) to a correlated melt rheology workflow with the LMI 5500 reduces chemical handling while maintaining actionable IV trend visibility. Maintain a validated correlation curve and re‑check after formulation, additive package, or molecular weight distribution changes.
Note: Parameters above are general PET guidelines; always follow Dynisco official manuals, safety data, and internal validated methods. Adjust temperatures, dwell times, and drying conditions for copolyesters or additives. *Brand and OEM references denote common industry pairing; verify specific endorsement or specification language independently.