Dynapac CC 522C

The Dynapac CC 522C combination roller has an operating weight of 25,800 pounds. The machine's front drum is 77 inches wide and 55 inches in diameter. The four-tire module at the rear is 75 inches wide. Powered by a 125-hp Cummins diesel engine, this "combi" roller has dual amplitudes and operates at a frequency of 3,060 vpm. Centrifugal force is 31,050 pounds in high amplitude, and 15,750 pounds in low amplitude. Both the drum and wheel module propel the roller, which has a maximum speed of 7 mph.