Key Considerations When Purchasing a Granulator
Time：
2018-06-21
1. Use a master–slave configuration with dual-screw feeding; 2. The gearbox must be of high quality, with heat-treated gears and adjustable bearings; 3. The gearbox, screw, barrel, die head, and other wear parts should undergo strength‑enhancing treatments, ensuring a service life of over one year; 4. Key components must be made from standard materials; 5. It is preferable to purchase the reducer from a reputable manufacturer and have the pelletizing machine factory assemble it in-house, which facilitates after-sales maintenance; 6. A dedicated electrical control cabinet is required; 7. The critical factors are the quality of the screw and the barrel; 8. The washing unit should enable continuous operation without requiring shutdowns for water changes, utilizing a dedicated washing tank—otherwise, efficiency will be low; 9. Heating should be staged, with uniform and controllable temperature distribution across each stage; 10. Supporting equipment must be provided.
1. Uses a master–slave configuration with dual-screw feeding;
2. The gearbox must be of high quality; its gears are heat-treated, and the bearings are adjustable.
3. The gearbox, screw, barrel, head, and wear parts shall undergo strength‑enhancing treatment and have a service life of at least one year.
4. Key components shall be made of standard materials;
5. The reducer is manufactured by the supplier and assembled in-house by the pelletizer manufacturer, which facilitates after-sales service and maintenance.
6. A distribution switchgear cabinet is required;
7. The key to the equipment is that the screw and barrel must be of high quality.
8. The washing machine must operate continuously without stopping to change the water; it should use a dedicated washing tank; otherwise, efficiency will be low.
9. Heating should be carried out in stages, with each stage being uniform and controllable.
10. A dedicated waste‑plastic washing machine must be provided, using recirculated water and eliminating the need to discharge wastewater.
11. High-efficiency energy saving;
12. The length-to-diameter ratio of the extruder should be appropriate (the screw length is a multiple of the screw diameter);
13. The larger the model, the higher the output;
14. It must have dual exhausts;
15. The heating power of the granulator flange (die head) is extremely important and should be designed at 2.5 W per square centimeter of cross-sectional area.
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Shuangda
Hebei Shuangda Rubber Machinery Co., Ltd.
Tel：400-0319-386
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