The requirements associated with grinding injection mouldings, blow mouldings or thermoformed parts are manifold. Whereas the process itself sometimes calls for blow mouldings to be ground while hot, the focus in the field of injection mouldings or thermoformed parts is somewhat different. Here, the main focus is on good cleanability of the systems and the reliable intake of bulky parts. What they all have in common is that a closed material circuit is becoming increasingly important because in this way, valuable raw materials can be replaced by carefully prepared feed material. This makes both economic sense as well as being environmentally sustainable.
In order to return the ground product to the production process without problem, a number of different requirements placed on the end product and system must be fulfilled:
- Homogeneous and dust-free ground product
- Retention of the material properties
- Electrostatic charging
- Varying grindability