2016 - 2020 JOHN DEERE 644K HIGH LIFT WHEEL LOADER

Technical Description

The John Deere 644K High-Lift is a mid-size wheel loader engineered for versatile material handling and earthmoving operations. Powered by a John Deere PowerTech 6068H turbocharged diesel engine, it delivers 232 net horsepower at 1,700 rpm, providing impressive torque to maintain consistent boom and bucket speed even with heaped loads in challenging conditions. The loader features a 4.25 cubic yard bucket capacity with a maximum dump clearance of 10.8 feet at full raise, enhanced by the High-Lift linkage option that extends lift height by an additional 420 millimeters compared to standard configurations. Breakout force reaches up to 33,903 pounds, enabling efficient digging and loading of dense materials. The transmission is a five-speed powershift unit with lockup torque converter in gears 2–5, optimizing acceleration and fuel efficiency during transport and ramp climbing, with a maximum travel speed of 40 km/h. Equipped with 40 degrees of articulation in each direction and a 5.57-meter turning radius, it delivers exceptional maneuverability in confined job sites. The operational weight of approximately 40,799 pounds provides stable performance while maintaining mobility. Standard features include an automatic differential lock for enhanced traction in demanding applications, power hydraulic steering with full articulation capability, and an integrated tire-pressure monitoring system to maximize tire life and fuel efficiency. The 644K High-Lift is ideal for quarrying, demolition, waste management, and general construction applications requiring a balance of power, lift capacity, and operational efficiency.