woodchipper

thumb|link=https://commons.wikimedia.org/wiki/File:Woodchipper.webm|Woodchipper (click for video)

A tree chipper or 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 . There are also high-power chipper models mounted on trucks and powered by a separate engine. These models usually also have a hydraulic winch.