SSI - Advanced Cutter Locking System (ACLS)
Normally, with simple nut and bolt tightening, the shredder cutters and spacers gradually loosen during operation. This traditional locking method requires frequent and tedious maintenance to prevent loosening, damage and poor performance.
SSI has solved this problem with patented ACLS - Advanced Cutter Locking System™ technology that locks the cutters and spacers onto the shaft so they won`t loosen during operation. The ACLS pre-load hub assembly eliminates shaft threads. It uses a series of sequentially tightened bolts (secured to the shaft with a segmented locking ring) to apply a force of approximately 100,000 lbs. (45,000 kg) to the end of the cutter stack, almost 850% greater than most threaded nut arrangements. (Most threaded nut arrangements provide only 10,000 - 15,000 lbs. or 4,500 - 6,750 kg of force). This increased stack loading permits compressing cutters and spacers into a tighter cutter stack—improving cutter performance and reducing the likelihood of shaft damage or failure. Operators and maintenance personnel appreciate ACLS as it eliminates frequent (often daily) cutter stack tightening, saving both time and money.