SN-RR1E Melt Flow Index Tester

The melt index tester is used to measure the melt mass flow rate (MFR; unit: g/10min) of thermoplastic plastics. It is suitable for the determination of the melt index at high temperatures of various polymer plastic raw materials such as polyethylene, polystyrene, polypropylene, ABS resin, polyoxymethylene resin, polycarbonate, nylon, fluoroplastic, etc.

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Product Introduction

Standards

GB/T9643,GB/T3682,JB/T5456,ISO1133

Application Fields

Intended Use

The Melt Flow Indexer is designed to determine the Melt Mass-Flow Rate (MFR) (Unit: g/10min) of thermoplastics. It is suitable for measuring the melt index of high-polymer raw materials at high temperatures, including PE, PS, PP, ABS, POM, PC, Nylon, and Fluoroplastics. It is extensively utilized in plastic raw material production, plastic products manufacturing, the petrochemical industry, universities, research institutions, and commodity inspection departments.

Operating Principle

Under specified temperature conditions, a high-temperature furnace melts the specimen. The molten material is then extruded through a calibrated die (orifice) under the gravitational load of a standardized weight. In industrial production and scientific research, the Melt (Mass) Flow Rate is commonly used to characterize physical properties such as fluidity and viscosity of polymers in a molten state. The Melt Flow Index represents the average weight of the extrudate segments converted to a 10-minute discharge volume.

Product Features

Determined via Gravimetric Method (MFR) and Volumetric Method (MVR).

Technical Parameters

Item	Parameter
Test Methods	Mass Method (MFR) / Volume Method (MVR)
Temp. Control Range	Ambient+10~450°C
Temp. Error	±0.2℃
Temp. Uniformity	≤0.5℃
Temp. Resolution	0.1℃
Recovery Time	≤4min
Cutting Method	Automatic timed cutting (0.1-999s) and manual cutting
Die Diameter	Φ2.095±0.005mm
Barrel Diameter	Φ9.550±0.025mm
Standard Loads	8 levels (3.187~211.82N); Load accuracy ≤±0.5%
Operating Environment	10℃-40℃,30%-80%RH

Equipment Configuration

Mainframe, One set of Weights, Die, Cleaning Rod, One set of Tools, Micro-printer.

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