Pre shredder for ferrous scrap single-shaft series for shredding metal scraps are the ideal solution for a fine refining of metals, cables and other types of materials. Metal separation requires refinement to grain sizes under 15-20 mm to improve the efficiency of magnetic separators or eddy current separators. The metals pre-crusher one-shaft consists of a cutting chamber inside which there is a rotor on which the cutting plates are fixed. A pusher operated by a hydraulic pump, the pusher moves forward to push the materials towards the rotor for smooth grinding. A PLC allows you to manage and control the movements of the rotor and pusher according to the forces that are generated inside the cutting chamber. In case of over-loading the rotor will stop and reverse the rotation and then restart in the cutting direction avoiding damage to the cutting teeth. The single-shaft shredder for ferrous scrap is equipped with a classifier screen positioned under the rotor. The classifier screen of the primary shredder allows to control the size of the output material according to the customer's needs. The separation of metals will then be simpler and more effective.
The industrial pre-shredders for ferrous scrap range made by Stokkermill are in three models:
These are extremely versatile, robust and efficient pre shredder with extremely low consumption. The maintenance required is extremely simple and is reduced to the simple replacement of the cutting teeth which is carried out in an extremely simple way. The teeth are reversible to give more their duration and cutting performance.
Industrial pre-shredders are indicated for the following activities: