In creating chips there is a fundamental differentiation between two-step and direct chipping.
In two-step chipping, first the logs and industrial waste wood (rinds, splinters, cut-off pieces, etc.) are processed into chips. This is usually done using a drum chipper or a disc chipper.
In the chip production process, the wood, or resp. the chips, are cut to length. The raw material is mainly processed when it is damp. This means it is possible to produce more even chips. It increases the amount of usable chips and uses less energy. Especially when recycling wood is being used there are cleaning steps between the individual processing steps, to remove foreign or interfering objects.