Improvements in or relating to shredder cutters

摘要

The present invention relates to improvements in or relating to cutters for shredders, in particular to cutters for shredders, in particular for vegetation shredders, suitably of the type used for shredding tree branches and garden waste. The present invention relates to a cutter (33) and method for manufacturing the cutter by means of investment casting. We describe a cutting element (33) for a vegetation shredder, the cutting element being a hollow unitary element comprising a plurality of elongate blades (45) arranged in a generally cylindrical configuration between a proximal and distal support elements (43, 44). The cylindrical configuration has a generally frusto-conical form, the distal support element (44) forming a base of said frusto-conical form. The cutting element is formed with elongate aperture s (51) between adjacent blades (45).