Safe Zone cab on the Revolution Series single-platform underground bullwheel puller keeps operators comfortable, safe and off the ground when the machine is in use. The company says the cab is an industry first and features a cage-type enclosure designed to reduce the risk of contact with energized environments. It has a digital touch-screen display for diagnostics, machine operations and pull status. A 35-horsepower, water-cooled diesel engine provides the U7500 model with 7,500 pounds of pulling power and can be configured with an air compressor. Twin capstan bullwheels are hydraulically driven. Sherman and Reilly also offers an optional 10,000 pound winch configuration with heat and air-conditioning available in the cab.