Contract grinding
Description (definition)
Contract grinding is an industrial service process in which companies outsource the shredding of materials such as plastics, rubber, metals or organic substances to specialized service providers. Raw materials or waste are mechanically shredded in order to reduce them to a desired particle size. This process is particularly common in the plastics and recycling industry, where granulates, powders or recyclates are required for further processing.
An example
One example is the contract grinding of production waste from the plastics industry. Plastic waste is shredded and processed into granulate that can be used to manufacture new products.
Why does contract grinding make sense?
Contract grinding enables companies to process their materials efficiently without having to invest in their own machinery and infrastructure. It offers flexibility, saves resources and guarantees high quality, as specialized providers use modern technologies and expertise.
Which materials can be processed in toll grinding?
In addition to plastics such as polyethylene (PE), polypropylene (PP) and polyamide (PA), metals, glass, rubber, wood and organic materials can also be ground. The process is individually adapted to the material and the desired particle size.
How does the toll grinding process work?
First, the material is delivered and checked for quality. It is then crushed using granulators, ball mills or other crushing machines. After grinding, the material is sieved to ensure a uniform particle size and returned in the desired form (e.g. powder or granulate).