Liquid pressurized cylinder is generally referred to as the pressurized cylinder. Liquid pressurized cylinder is a combination of the advantages of the cylinder and cylinder and an improved design, strict isolation of hydraulic oil and compressed air cylinder piston rod contact with the work piece automatically leave, movement speed and more stable than pneumatic drive cylinder means simple, easy to adjust output under the same conditions of hydraulic machines can reach high output power, low energy consumption, a soft landing without prejudice to mold, easy to install and the special pressurized cylinder 360 degree angle installation, the space occupied by small, less failure temperature liters of distress, long life, low noise, and other core features.