This 20-ton air hydraulic bottle jack delivers dependable lifting performance for heavy machinery, trucks, construction equipment, and workshop applications. Built with a reinforced hydraulic structure, it offers strong lifting force in a compact, portable design.The jack features a lifting range from 10.2 in. to 20.1 in., along with a 3.2 in. adjustable screw for precision height control. A built-in handle allows easy transport and convenient on-site positioning.With pneumatic lifting capability, the jack operates quickly and effortlessly using a simple press of the air-powered switch. Dual heavy springs ensure smooth lowering and fast resetting, improving efficiency in repeated lifting tasks.A safety valve prevents overloading and enhances secure operation. The rust-resistant steel body, combined with an integrated cylinder and piston structure, ensures long-term durability in demanding work environments.