1、 Overview:

Suitable for measuring the melt index of various high polymer plastic materials such as polyethylene, polystyrene, polypropylene, ABS resin, polyoxymethylene resin, polycarbonate, nylon, fluoroplastics, etc. at high temperatures. Widely used in industries such as plastic raw material production, plastic products, petrochemicals, as well as relevant colleges, research departments, and inspection departments.

2、 Compliant with standards:

GB/T3682、GB/T9643、JB/T5456、ISO1133

3、 Instrument features:

（1） Electrical control system

This machine adopts the quality method（MFR）Basic model, usingPIDSpecialized temperature control instrument, used to replace the previous stageXNR-400AM、XNR-400GThe use of this temperature control instrument greatly improves the temperature control accuracy and service life of two models.

（2） Mechanical components

1. A complete set of eight specifications of weights to meet the load requirements of different material tests, with mechanical loading methods and reliable data.

2. The scraper tool is made of 65Mn material, which is wear-resistant, non deformable, and thoroughly scrapes without residue after long-term use.

3. Hard alloy high-temperature resistant material barrel, corrosion-resistant, and does not deform at high temperatures.

4. Brass thermal conductive rod has high thermal conductivity, short heating and recovery temperature time, and high testing efficiency.

5. The overall covered heating sleeve provides uniform heating with minimal temperature fluctuations.

6. The independent furnace body is filled with asbestos inside, and the hollow design between the outside and the box reduces heat transfer, energy consumption, and prevents burns.

4、 Main technical parameters:

1. Discharge port diameter: Φ 2.095 ± 0.005 millimeters

2. Discharge port length: 8.000 ± 0.025 millimeters

3. Loading cylinder diameter: Φ 9.550 ± 0.007 millimeters

4. Loading cylinder length: 152 ± 0.1 millimeters

5. Piston rod head diameter: 9.474 ± 0.007 millimeters

6. Piston rod head length: 6.350 ± 0.100 millimeters

7. Temperature range: Room temperature -450 ℃

8. Constant temperature accuracy: ± 0.2 ℃

9. Input method: key press

10. Display mode: LCD screen display

11. Printing test report: support

12. Scraping methods: manual, time controlled, automatic

13. Test method: Quality method

14. Standard Test Load (Level 8)

Level 1: 0.325kg; Level 2: 1.2kg; Level 3: 2.16kg; Level 4: 3.8kg; Level 5: 5kg; Level 6: 10kg; Level 7: 12.5kg; Level 8: 21.6kg

15. Instrument dimensions: 250mm x 350mm x 510mm (length x width x height)

5、 Configuration List: