STONE SW770HF STATIC SMOOTH DRUM ROLLER

Technical Description

The STONE SW770HF is a high-performance static smooth drum roller designed for efficient compaction in paving and construction applications. It features a 67-inch wide steel drum that delivers effective surface coverage and smooth finishes. The roller operates with a variable vibration frequency range of 2,500 to 4,000 vibrations per minute, enabling precise adjustment for optimized compaction density depending on material and conditions. Powered by a robust Isuzu 4JJ1XDIA engine, a 3.0-liter, four-cylinder, water-cooled diesel with turbocharging and charge air cooling, the engine produces 131 horsepower at 2,500 RPM and peak torque of 310 lb-ft at 2,000 RPM, ensuring strong and reliable performance with low fuel consumption. The operating weight of the unit is 23,810 pounds (10,800 kg), distributing loads of 11,465 lb on the front drum and 12,345 lb on the rear drum for balanced compaction force. Dimensions include an overall length of 194.9 inches, width of 73.2 inches, and height of 115.7 inches, providing a stable footprint for enhanced maneuverability and operator control. The vibration system is hydrostatically driven with an eccentric shaft vibrator, optimized for smooth asphalt mat compaction and soil stabilization. This combination of advanced vibration technology and powerful engine performance makes the SW770HF suitable for demanding paving projects requiring high-density compaction and surface smoothness. The unit also incorporates operator comfort features and maintenance-friendly design elements, ensuring durability and ease of use on job sites.