Morbark's1600 Tub Grinder, with a hammer mill nearly 6 feet long, can grind 10-foot stumps at what Morbark calls "unprecedented production rates." With a tub diameter of 11 feet 2 inches, the 1600 can be fed with a 13-yard bucket. The discharge belt is 60 inches wide. Changing from a standard 22-hammer pattern to a 30-hammer pattern takes about an hour. Operators adjust feed systems from the control panel using the Iqan system, and a wireless modemoption allows Morbark technicians to diagnose problems by phone. Estimated list price: $650,000–$725,000.