New engine and hydraulic pump. <br> The new Vermeer BC900XL brush chipper was designed to eliminate the guesswork out of chipping. No chucking. No ducking. Just smooth chipping performance. Able to chip heavily branched material up to 9 inches (23 cm) in diameter and 14 inches (35.5 cm) wide,the BC900XL is ideal for line clearing and general clean-up needs. In combination,the Vermeer exclusive SmartFeed system,and its 37 hp (27.6 kW) Kohler engine,pulls in and processes difficult material.