The HYPAC C350D (10-14 ton) static smooth drum roller is a robust compaction machine designed for road and foundation construction. It features tandem smooth steel drums with diameters of 4.1 ft (front) and 5.1 ft (rear), providing efficient ground contact and uniform compaction. The roller measures 16.6 ft in length, 5.3 ft in width, and has a ground clearance of 1.7 ft, with a height of 6.5 ft to the operator’s platform and 9.2 ft to the top of the ROPS/FOPS for operator safety and visibility. Powered by a 4-cylinder Cummins 4B3.3TAA diesel engine delivering 78 horsepower at 2100 rpm, the C350D ensures reliable performance and fuel efficiency. It has a fuel capacity of 30.2 gallons, hydraulic system fluid capacity of 15 gallons, and a coolant capacity of 4 gallons. The roller’s maximum speed reaches 10.2 mph, supported by a 12-volt electrical system. The water spray system has a capacity of 170.4 gallons to prevent soil adhesion to the drums during operation. Weighing 21,483 lbs standard, with a maximum ballast weight of 28,413 lbs, it offers high static linear loads: 304 pounds/inch on the drive drum and 223 pounds/inch on the guide drum, enabling excellent compaction force and penetration. This model is suited for compacting granular and mixed soils on highways, airports, embankments, and large-scale construction projects, providing operator safety, efficient compaction, and durability in demanding site conditions.