2006-2012 DOOSAN DL550-5 WHEEL LOADER

Technical Description

The Doosan DL550-5 is a heavy-duty wheel loader engineered for high productivity and versatility in demanding construction and material handling environments. It features a Scania DC13 six-cylinder engine delivering a net power of 271 hp (202 kW) at 1800 rpm, with a gross power of 380 hp (283 kW), generating a peak torque of 1121.1 lb-ft at 1400 rpm. The loader's operational weight stands at approximately 69,900 lbs (31,711 kg), optimized for stability and robust performance. It is equipped with a large 7.5 cubic yard (5 m³) heaped capacity bucket, with an 11.2 ft (3 m) width, enabling significant material handling per cycle. The breakout force of the bucket reaches 55,303 lbs (25,085 kg), facilitating efficient digging and lifting operations. Dimensionally, the DL550-5 measures 31.8 ft (9 m) in overall length, 14.7 ft (4 m) in width over tires, and 12.5 ft (3.8 m) overall height. The machine has a ground clearance of 1.6 ft (0.5 m) and a wheelbase of 12.2 ft (4 m), supporting stability on varied terrain. Hydraulic system capacities total 65 gallons (246 liters), with a relief valve pressure of 3989 psi ensuring smooth and powerful hydraulic functions. Transmission fluid capacity is 14 gallons (53 liters), supporting a max forward speed of 22.4 mph (35 kph) and reverse speed of 16.1 mph (26 kph). Additional capacities include a 117-gallon (443 liter) fuel tank, 16-gallon (61 liter) coolant system, and 16 gallons (61 liters) for Diesel Exhaust Fluid (DEF), complying with emission regulations. Hydraulic cycle times include 6.4 seconds raise, 1.4 seconds dump, and 4.2 seconds lower. Equipped with 29.5-25 tires, the loader combines power, efficiency, and operator comfort for versatile heavy-duty applications.