Precision Sharpening Devices produce a tool that can sharpen chipper knives while still on the drum.The Bevel Buddy Max can be used on a variety of chipper knives and wood chipping equipment, including drum and disc chippers. It can be used on pocket style, face mounted, reversible and disposable knife systems. It is used by chipper owners and manufacturers, and pulp mills and saw mills. Using the tool allows the chipper knife to be sharpened two to three times while still on the machine. Therefore, the knife does not need to be removed for every sharpening. It is common knowledge that sharp chipper knives result in better quality wood chips, less fuel use, safer chipper operation and decreased production costs. Chipper knife life can be increased by between 50 and 70%, and downtime is reduced for chipper knife replacement and changes.
The sharpening of chipper knives with the Bevel Buddy is a counter grinding process. In this way, knife steel is conserved. Counter grinding allows easier sharpening of the knives. It takes approximately 30 seconds to sharpen each knife. Maintenance of the sharpening tool is quick. The metal filings and dust are blown off after each use. The abrasive surface used to sharpen the knives is replaced every 15 to 30 knives sharpened, but also depends on the pressure applied during sharpening. Source: https://www.natlarb.com/html/bevel_buddy.html