These drum-style chippers are powered by diesel engines, offering from 84 to 1,200 horsepower. Units are ideal for tree services, landscape contractors, forestry and logging operations, municipal departments, recycling yards, biomass facilities and rental stores. Both, hand-fed and loader-assisted, hydraulic-fed, drum-style chippers are available. Models include the 750, 770 and 790 (shown), and are available with track undercarriages to allow for off-road use.