Mobile hydraulic hammer

The Arrow Hammer Model 1350T is a pneumatic-tired mobile hydraulic hammer that operates both on and off paved surfaces. An 80-hp John Deere, Tier-3 turbocharged diesel engine powers the Arrow Hammer, which breaks, cuts and scores concrete, rock and asphalt into sizes suitable for excavation, recovery or cracking and seating. The standard synchromesh transmission allows the machine to be driven at speeds up to 20 mph. During operation, the unit propels itself through a hydraulically controlled creeper gear, providing speeds up to 63 feet per minute.

http://www.arrowmaster.com/