This portable tub grinder is powered by a rebuilt 400HP Mack engine. It has newer hammers, bearings & rollers, hydraulic pump, & tub chain. It also has a new twin disc clutch. It has 4,000 frame hours & only 1,000 hours on the rebuilt engine. It will work great for grinding wood waste up to approx. 18” diameter as well as processing pallets, bark, brush, sheetrock, construction waste, and more. It is in good mechanical condition and ready to go to work.