A leading manufacturer of melamine panels and components needed a replacement power take-off (PTO) clutch for one of its large mobile wood chippers. The chipper is located at the company’s primary wood chipping mill. The clutch, enclosed in a bell housing, is mounted directly to the flywheel on the Caterpillar diesel engine. Belt drives that power the chipper’s rotating blades and hydraulic pump are overhung on the clutch’s output shaft.

The PTO clutch’s air tube disc design provides smooth, shock-free start-ups. The high-speed air tube is not affected by centrifugal force. Bearing support eliminates sideload on the crankshaft. Units are dynamically balanced for high-speed operation. Simple air activation allows for remote control of both the clutch and the throttle. PTO clutch models are available for all popular diesel engines up to 700 HP.