Patent ID: 6322012
Filing Date: 2001-11-27
Classification: B02C

Abstract:
In a cutting shaft (106) for cutting machine (101) for shredding particles of a first size, the cutting shaft (106) having knife seat grooves (129) spirally wound and distributed on the periphery of the cutting shaft (106), whereby cutting tools (1) with at least one cutting tooth having a cutting edge are placed in knife seat grooves (129) having a certain maximum of protrusion beyond the periphery of the cutting shaft (106), the cutting tools (1) having a first engagement depth with corresponding counter cutting means (108) of the cutting machine,the replacement improvement to the cutting tools with at least one cutting tooth for shredding particles of a second and smaller size comprising in combination:at least one cutting tool (20) having cutting teeth in excess of the cutting teeth of the cutting tools (1) provided for mounting in the knife seat grooves (129), the cutting tools, (20) having at least the same entire cutting edge length and the same maximum protrusion beyond the periphery of the cutting shaft (106) as the cutting tool having the at least one cutting tooth (1), the distal end of the cutting teeth in excess of the cutting teeth of the cutting tools (1) extending beyond the periphery of the cutting shaft (106), the cutting tools (20) having second and lower engagement depth with the counter cutting means (108) when compared with the cutting tools (1).