JOHN DEERE 644H WASTE HANDLER WHEEL LOADER

Technical Description

The John Deere 644H Waste Handler is a robust wheel loader designed for heavy-duty waste and material handling applications. It features a 6-cylinder, turbocharged 6081H engine with aftercooler, displacing 496 cubic inches (8.1 L) and delivering a gross power of 205 hp (153 kW) and net power of 180 hp (134 kW) at 2200 rpm, with maximum torque of 745 lb-ft at 1300 rpm. The machine operates on a fully hydraulic power steering system with a piston pump providing 68 gallons per minute flow capacity at 3600 psi relief pressure. Its power shift transmission offers 3 forward and 3 reverse gears, enabling max speeds of 17.1 mph forward and 17.8 mph reverse. The loader has a breakout force of 37,606 lbs (17,058 kg) with a bucket capacity of 5 cubic yards heaped (4 m³) and 4.4 cubic yards struck (3 m³). It has a bucket width of 10.7 ft (3 m), a dump clearance of 12.6 ft (4 m), and a max hinge pin height of 15.3 ft (5 m). Overall dimensions include a ground clearance of 1.8 ft (0.55 m), cab height of 11.4 ft (3.47 m), length with bucket on ground of 26.7 ft (8 m), width over tires of 9.5 ft (2.9 m), and wheelbase of 10.5 ft (3.2 m). Operating weight is approximately 50,627 lbs (22,964 kg). Other capacities include a 90-gallon fuel tank and a 31-gallon hydraulic fluid reservoir. Tire size is 23.5-25, and the rear axle oscillates 18°. Dump, raise, and lower cycle times are 1.4, 6.2, and 3 seconds respectively, ensuring efficient material handling cycles.