1. Use a master-slave machine with twin-screw feeding.
2. The gearbox must be of high quality; the gears inside must be heat-treated, and the bearings should be adjustable.
3. The gearbox, screw, barrel, die head, and wear parts must be strength-treated, with a service life of at least one year.
4. Major components must be made of standard materials.
5. Purchase gearboxes and motors from professional manufacturers as complete sets; do not buy sets assembled by the granulator manufacturer itself.
6. A power distribution cabinet is required.
7. The most critical components of the equipment are the high-quality screw and barrel.
8. The washing machine must operate continuously without stopping to change water; use a washing water tank, otherwise efficiency will be extremely low.
9. Heating should be segmented, and each segment should be heated evenly and controllably.
10. A matching waste plastic washing machine is required, using circulating water to avoid wastewater discharge.
11. High efficiency and energy saving.
12. The length-to-diameter ratio of the machine should not exceed 20 (ideally between 16:1 and 20:1, meaning the screw length is 16 to 20 times the screw diameter).
13. The model number should not be less than 100; larger numbers result in higher output.
14. Dual venting is required.
15. The heating power of the granulator flange (die head) is crucial; it should be designed at 2.5W per square centimeter (cross-sectional area).
