Zhida Plastic Machinery
| Still deciding? Get samples of $ ! US$ 100/Piece Request Sample |
Plastic crusher/granulator/grinding machine is used for size reduction, an essential step in plastic recycling. It has the ability to quickly break down plastic products such as plastic bottles, brackets, drums, and films into small, uniform pieces called "regrinds" or "flakes".
In the plastic grinding machine, cutting knives are installed on a high-speed rotating rotor driven by an electric motor. This rotor is encased in a cutting chamber where stationary knives are installed. As the plastic scrap enters this cutting chamber, the rotating knives come into contact with the stationary knives cutting the plastic into small pieces. A large screen mesh with many holes is placed at the bottom to control the output size.
A wet grinding machine uses water jets inside the cutting chamber. The water acts as a lubricant, lowering the temperature significantly below the plastic's melting point. This prevents plastic from melting and sticking to the knives, while also providing a preliminary cleaning of the material.
Wet grinding is proven to reduce knife dulling, extending the time between sharpening by up to three times. It is commonly used for PET bottles and PE/PP films.
| Model | 400 | 600 | 800 | 1000 |
| Rotor Blade Dia. (mm) | 250 | 380 | 400 | 650 |
| Qty of Rotating Blades | 12 | 18 | 24 | 24 |
| Blade Speed (rpm) | 560 | 560 | 560 | 560 |
| Qty of Fixed Blades | 2 | 4 | 4 | 4 |
| Screen Sieve Hole (mm) | Φ10-14 | Φ10-14 | Φ10-14 | Φ10-14 |
| Capacity (kg/h) | 80-100 | 250-350 | 400-500 | 700-800 |
| Power (kw) | 7.5 | 18.5 | 37 | 55 |
| Inlet Size (mm) | 260×400 | 400×600 | 420×800 | 600×1000 |
| Weight (kg) | 650 | 1200 | 1500 | 2000 |
Strict production steps are followed before packing and shipping to ensure every machine is delivered in optimal condition.



