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In today’s plastic manufacturing industry, precision and consistency are non-negotiable. Whether you're producing packaging materials, automotive parts, or consumer goods, ensuring that your raw materials meet performance standards is key. One of the most effective tools for evaluating the flow properties of thermoplastics is the Melt Flow Index Tester (MFI Tester). At Pacorr Testing Instruments, we offer highly accurate MFI testers designed to deliver reliable results for quality assurance and material analysis.
What is a Melt Flow Index Tester?
A Melt Flow Index Tester measures the melt flow rate (MFR) of thermoplastic polymers — essentially how easily a material flows when melted. This is expressed in grams per 10 minutes and provides insight into the material’s viscosity under specific conditions of heat and pressure.
During the test, a polymer sample is placed in a heated barrel and extruded through a standard-sized die using a defined weight. The amount of material that flows out over a set period helps determine its processing characteristics.
Why is Melt Flow Index Testing Important?
Quality Consistency
MFI testing ensures that each batch of plastic maintains uniform flow properties, which translates to consistent performance in final products.
Material Selection
Different applications require different flow behaviors. MFI testing allows engineers to choose the right polymer grade for injection molding, extrusion, or film production.
Process Optimization
Knowing the melt flow rate enables manufacturers to fine-tune machine settings, reduce waste, and improve production efficiency.
Industry Compliance
Industries often require MFI testing to comply with international standards such as ASTM D1238 and ISO 1133, ensuring materials meet performance and safety criteria.
Key Features of Pacorr’s MFI Tester
At Pacorr.com, our Melt Flow Index Testers are engineered for accuracy and durability. Key features include:
Whether you're testing polyethylene, polypropylene, or other thermoplastics, Pacorr’s MFI testers deliver dependable results you can count on.
Applications Across Industries
MFI testing plays a critical role in industries such as:
In all these sectors, understanding the material’s flow behavior helps ensure quality, safety, and performance.
Why Pacorr?
Pacorr Testing Instruments is a leader in quality control equipment, trusted by manufacturers for innovative, dependable, and standards-compliant testing solutions. Our Melt Flow Index Tester Price are backed by expert technical support and tailored solutions to fit your production needs.
What is a Melt Flow Index Tester?
A Melt Flow Index Tester measures the melt flow rate (MFR) of thermoplastic polymers — essentially how easily a material flows when melted. This is expressed in grams per 10 minutes and provides insight into the material’s viscosity under specific conditions of heat and pressure.
During the test, a polymer sample is placed in a heated barrel and extruded through a standard-sized die using a defined weight. The amount of material that flows out over a set period helps determine its processing characteristics.
Why is Melt Flow Index Testing Important?

MFI testing ensures that each batch of plastic maintains uniform flow properties, which translates to consistent performance in final products.

Different applications require different flow behaviors. MFI testing allows engineers to choose the right polymer grade for injection molding, extrusion, or film production.

Knowing the melt flow rate enables manufacturers to fine-tune machine settings, reduce waste, and improve production efficiency.

Industries often require MFI testing to comply with international standards such as ASTM D1238 and ISO 1133, ensuring materials meet performance and safety criteria.
Key Features of Pacorr’s MFI Tester
At Pacorr.com, our Melt Flow Index Testers are engineered for accuracy and durability. Key features include:
- Digital Temperature Control for precise testing conditions
- Robust Body Construction for long-term use
- Easy-to-Use Controls for smooth operation
- Compliance with Global Standards for versatility across industries
Whether you're testing polyethylene, polypropylene, or other thermoplastics, Pacorr’s MFI testers deliver dependable results you can count on.
Applications Across Industries
MFI testing plays a critical role in industries such as:
- Plastic and Polymer Manufacturing
- Automotive and Aerospace
- Medical Devices
- Packaging and Containers
- Consumer Electronics
In all these sectors, understanding the material’s flow behavior helps ensure quality, safety, and performance.
Why Pacorr?
Pacorr Testing Instruments is a leader in quality control equipment, trusted by manufacturers for innovative, dependable, and standards-compliant testing solutions. Our Melt Flow Index Tester Price are backed by expert technical support and tailored solutions to fit your production needs.