The 1600 tub grinder is capable of grinding 10-foot stumps with a 6-foot hammermill. The base diameter is 11 feet 2 inches with a tub capacity of 20 cubic yards. It can be fed using a 13-cubic-yard bucket, the company says. The discharge system has a 60-inch belt. Standard three-auger system eliminates damage from steel contamination and provides for a pressure sensor that stops the tub if overloaded.