DYNAPAC CC422 STATIC SMOOTH DRUM ROLLER

Technical Description

The Dynapac CC422 is a robust vibratory smooth drum roller designed for efficient compaction tasks. It features a powerful 124.8 hp (92 kW) 4AA BT 3.9-C engine delivering peak power at 2200 rpm. The roller’s operating weight is approximately 22,928 lbs, with an overall length of 16.3 ft, wheelbase of 12 ft, and a ground clearance of 11.9 inches. Its compaction is achieved through dual smooth drums, each 51.2 inches in diameter and 66.2 inches wide. The machine offers high and low centrifugal forces of 31,023.7 lbs and 15,736.7 lbs respectively, with a nominal amplitude of 0.1 inches at both vibration settings and a frequency of 51 vibrations per minute. Static linear load measures 443.8 pounds per inch, ensuring effective surface pressure. Fuel capacity is 60.8 gallons, supporting extended operation, and the maximum travel speed reaches 6.9 mph (10 kph). The roller uses articulated steering for maneuverability and features drive, brakes, and vibration on both drums, enhancing control and compaction uniformity. With its combination of high centrifugal force, vibration frequencies, and weight distribution, the CC422 is suited for road construction and other large-scale paving projects requiring smooth, dense surfaces.