MICHIGAN L320 LONG BOOM WHEEL LOADER

Technical Description

The Michigan L320 Long Boom is a heavy-duty wheel loader designed for demanding material handling tasks. Powered by a turbocharged and aftercooled Cummins KTA 19C engine, it delivers a gross power of 452 hp (337 kW) and a net power of 417 hp (311 kW) at 2100 rpm, with peak torque measured at 1500 rpm. The machine operates at 24 V with a 100 A alternator supply. Its robust hydraulic system features a three gear type pump with a flow capacity of 194 gallons per minute (734 l/min), enabling efficient bucket cycling with a raise time of 9 seconds, dump time of 2.1 seconds, and lower time of 5.4 seconds, maintained at a relief valve setting of 2900 psi. The L320 Long Boom can handle bucket capacities of 7.5 cubic yards (heaped) and 6.2 cubic yards (struck), with a breakout force of 110,200 lbs (49,986 kg) and a bucket width of 13 feet (4 meters). It provides a dump clearance of 13.8 feet (4 meters) at maximum raise and a hinge pin lift height of 17.9 feet (5 meters). The machine's dimensions include a ground clearance of 1.9 feet (0.6 meters), an overall length of 35.3 feet (11 meters) with the bucket on the ground, a wheelbase of 13.4 feet (4 meters), and a width across tires of 12 feet (4 meters). The loader’s operating weight is approximately 100,540 lbs (45,605 kg), with a fuel capacity of 212.2 gallons (802 liters) and hydraulic fluid capacity of 160.1 gallons (606 liters). Transmission is a Clark 6421-11 countershaft powershift type with four forward and three reverse gears, allowing maximum forward and reverse speeds of 22.1 mph (35 kph) and 13 mph (21 kph), respectively. The machine’s turning radius is 30.1 feet (9 meters) with 24° rear axle oscillation, and it is equipped with 35/65-33 (30PR) L-4 tires, providing stability and traction in demanding environments.