The JCB 446ZX High Lift wheel loader is a robust machine designed for heavy-duty material handling with a breakout force of 36,868.7 lbs (16,723 kg). It features a heaped bucket capacity of 3.7 cubic yards (2 m³) and a struck capacity of 3.3 cubic yards (2 m³), with a bucket width of 9.4 ft (3 m). The loader offers a maximum dump clearance of 11.2 ft (3 m) and a hinge pin height reaching 15.4 ft (5 m), enabling high lift operations. The overall machine length with the bucket on the ground is 28 ft (9 m), with a wheelbase of 10.9 ft (3 m), width over tires at 8.9 ft (2 m), and a turning radius of 22.3 ft (7 m). Ground clearance stands at 1.6 ft (0 m), and the cab height is 11.1 ft (3 m). Powered by a turbocharged 6-cylinder 6CT8.3C engine with a displacement of 506.5 cubic inches, it delivers 193 hp (144 kW) gross power and 185 hp (138 kW) net power at 2200 rpm with peak torque at 1400 rpm. The hydraulic system uses twin variable displacement piston pumps providing 43.1 gal/min (163 l/min) flow, with fast cycle times including a 1.2-second dump and 5.8-second raise time under a relief valve setting of 3625 psi. The loader runs on a smooth shift powershift transmission offering 4 forward and 3 reverse gears, achieving maximum speeds of 23.3 mph forward and 15.2 mph reverse. Operating weight is approximately 45,492 lbs (20,635 kg). Fuel capacity is 84.6 gallons (318 l), with substantial fluid capacities for engine oil, hydraulic fluid, and axle differentials to ensure reliability and durability under demanding conditions. Tire size is 23.5R25 HXA (L3), providing traction and stability for versatile job site applications.