Woodchipper is a machine used for reducing wood (generally tree limbs or trunks) into smaller woodchips.
They are often portable, being mounted on wheels on frames suitable for towing behind a truck or van. Power is generally provided by an internal combustion engine from 3 horsepower (2.2 kW) to 1,000 horsepower (750 kW). There are also high power chipper models mounted on trucks and powered by a separate engine. These models usually also have a hydraulic crane.
Tree chippers are typically made of a hopper with a collar, the chipper mechanism itself, and an optional collection bin for the chips.