KOMATSU GD655-7 MOTOR GRADERS

Technical Description

The Komatsu GD655-7 Motor Grader is a high-performance machine engineered for precision grading and demanding earthmoving tasks. Powered by a Tier 4 Final-compliant Komatsu SAA6D107E-3 engine, it delivers 221 horsepower (165 kW) for robust performance in all operating conditions. The grader features a dual-mode powershift transmission with eight forward and four reverse gears, providing seamless, full-power shifting and enhanced control for operators of all skill levels. Its operating weight is 33,951 lbs (15,400 kg), ensuring stability and traction during heavy-duty applications. The standard blade width is 8.42 ft (2.57 m), optimized for efficient grading and material handling. The GD655-7 is equipped with Komatsu’s innovative electro-hydraulic fingertip controls, which reduce operator fatigue and improve response and accuracy. The machine’s closed-center load-sensing hydraulic system allows for simultaneous operation of multiple circuits, independent of engine speed, for smooth and responsive control. Additional features include a spacious, ergonomic cab with air suspension seating, adjustable consoles, and a multi-monitor system for real-time machine data and rearview monitoring. The grader also offers selectable power modes for improved fuel efficiency and productivity, as well as blade lift accumulators to absorb shock loads and protect critical components. Designed for durability and operator comfort, the GD655-7 is a reliable choice for road maintenance, site preparation, and other grading applications.