The Bobcat 8B chipper attachment is designed to reduce wood-waste from trees, branches and limbs by a factor of 10:1. The attachment is available for use on Bobcat machines with a high-flow hydraulic system, including skid-steer models (S160H-S300H), compact track loaders (T180H-T300H) and the Toolcat 5600H utility work machine. The chipper’s variable gpm setting allows it to operate within two flow ranges: 26-31 and 32-37 gpm. A “smart valve” slows the chipper’s feed roller when its chipping-disc speed diminishes, then restores feed-roller speed when the disc recovers to full speed. The feed-roller system also is equipped with an auto-reverse/auto-forward feature to control material flow.