Product Description

I. Product Introduction

The ST-6ABC automatic loading melt flow rate tester complies with GB/T 3682-2018, ISO 1133:2011 and ASTM D 1238-2010 standards for the determination of melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics.

It is applicable to high-melting-point plastics such as polyethylene, polyarylsulfone and nylon, as well as low-melting-point materials including PE, PP, PS, ABS and POM. Widely used in universities, research institutes, quality inspection agencies, plastic manufacturers, plastic product factories and petrochemical enterprises.

II. Product Features

Equipped with automatic rotating and lifting weight loading system and integrated high-precision weighing module. With advanced circuit design and software algorithm, it can automatically read sample weight and calculate melt flow index intelligently.

• Mutual conversion between MFR and MVR results, built-in melt density testing function
• Full automatic test flow: auto timing, auto cutting, auto weight loading, intelligent weighing, report printing
• Supporting control software for parameter setting, constant temperature control, auto cutting, calibration, automatic weight loading, timing, MFR/MVR display and melt density calculation; test data can be queried and exported after testing
• Password protection for critical operations to avoid misoperation
• 7-inch full-color touch screen with bilingual Chinese & English operation interface
• Fast heating speed, minimal temperature overshoot, high constant temperature accuracy; rapid temperature recovery after sample loading
• Upper temperature limit protection, audio reminders for constant temperature stabilization and recovery time
• Volume method test: measure MVR within set time, calculate MFR after inputting melt density

III. Main Technical Specifications

1. Extrusion Assembly

• Die orifice diameter: Φ2.095±0.005 mm
• Die orifice length: 8.000±0.025 mm
• Barrel inner diameter: Φ9.550±0.025 mm
• Barrel length: 152±0.1 mm
• Piston head diameter: 9.475±0.015 mm
• Piston head length: 6.350±0.100 mm

2. Flow Rate Measuring Range

• MFR: 0.01 ~ 200 g/10min
• MVR: 0.1 ~ 2500 cm³/10min

3. Temperature Control

• Temperature range: 50℃ ~ 450℃
• Constant temperature accuracy: ±0.2℃
• Temperature resolution: 0.01℃
• Barrel temperature recovery time after feeding: ≤4 min

4. Timing System

• Timing range: 1 ~ 999.9 s
• Timing accuracy: 0.001 s

5. Displacement Test (Volume Method)

• Displacement range: 50.00 mm
• Displacement accuracy: 0.01 mm

6. Weighing Module

• Weighing range: 320 g
• Readability: 0.001 g

7. Test Modes: Mass Method, Volume Method (Time-based), Volume Method (Displacement-based)
8. Display: 7-inch full-color LCD touch screen
9. Operation Language: Chinese / English
10. Weight Loading Mode: Electric automatic loading
11. Sample Cutting: Manual & automatic dual cutting modes
12. Output: Support test report printing
13. Power Supply: 220V±10%, 50Hz
14. Operating Environment

Ambient temperature: 10℃ ~ 40℃

Relative humidity: 30% ~ 80%

No corrosive gas, strong airflow, vibration or strong magnetic field; place on horizontal stable platform