With a 48-inch-wide smooth drum, the AC 30 roller can deliver 19,783 pounds of compactive force. The vibration system offers dual frequencies and amplitudes controlled from the dashboard. Dual drive motors at the rear come equipped with a flow divider to deliver good traction without an axle. The hydrostatic braking, drive and vibratory systems are powered by individual pumps. It is powered by a 41.5-hp four-cylinder Kubota diesel.