The Ammann ASC90D is a static smooth drum roller designed for efficient soil compaction across a variety of applications, including clayey and stabilized soils. It features a front drum diameter of 51.2 inches and width of 66.2 inches, providing a static linear load of 177 pounds per inch to ensure deep and uniform compaction. The roller delivers high centrifugal forces of approximately 32,597 lbs and 35,970 lbs at low and high vibration frequencies of 30 and 40 vibrations per minute, respectively, with a nominal amplitude of 0.1 inch. Powered by a B4.5-C99 engine producing 101 hp (75 kW), the ASC90D offers reliable and consistent performance. The machine’s operating weight is approximately 19,445 lbs, with a maximum travel speed of 6.9 mph (10 kph), making it suitable for varied terrain and jobsite conditions. Key dimensions include a ground clearance of 15.2 inches, overall length of 17.1 ft, width of 6.4 ft, height to the top of the cab at 9.5 ft, and an 8.4-inch wheelbase, ensuring maneuverability and operator comfort. The roller is equipped with 14.9-24 tires and a fuel capacity of 72.7 gallons for extended operation times. Designed for durability and operator ease, the Ammann ASC90D balances compaction force, vibration control, and mobility for superior soil compaction efficiency on diverse sites.