CATERPILLAR CS431B STATIC SMOOTH DRUM ROLLER

Technical Description

The Caterpillar CS431B is a static smooth drum roller designed for efficient soil compaction in construction and roadwork applications. It features a robust Caterpillar T4.236 four-cylinder diesel engine with a displacement of 236.2 cubic inches, delivering a gross power output of 102 hp (76 kW). The machine’s operating weight is approximately 13,916 lbs, providing substantial ground contact for compaction. The steel drum, measuring 48.1 inches in diameter and 66.2 inches in width, generates a high centrifugal force of 24,746 lbs and a low centrifugal force of 19,333 lbs to ensure effective consolidation of materials. The drum vibrates at a frequency of 30 vibrations per minute to optimize compaction performance. The CS431B’s compact dimensions—10.1 feet height to cab top, 16 feet overall length, and 6.3 feet width—allow maneuverability in confined areas. Fuel capacity stands at 38.1 gallons with an equal capacity for hydraulic fluid, while engine oil capacity is 2.1 gallons. Tires sized 14.9x24 support stability and traction. The roller’s maximum speed is 8.3 mph (13 kph), enabling efficient movement across job sites. Built with quality Caterpillar components, including a durable vibratory smooth drum system and the reliable T4.236 engine known for direct injection technology and long service life, the CS431B delivers a balance of power, weight, and vibration frequency for effective soil compaction and operational productivity.