These devices typically include a pneumatic motor and a piston pump, operating on a pressure conversion principle. They often employ a dual-oil-circuit, dual-cylinder design. They feature a compact structure, high safety, and adaptability to harsh environments (especially explosion-proof performance). Some models have operating valves with load-holding functions, and the force indicator is rotatable. Radial piston pumps offer convenient venting and long service life.
Automatic pressure control function; this patent remained valid as of 2022. Its structural stability, heat dissipation, and quiet operation are also noteworthy.
The pneumatic transmission device drives the hydraulic mechanism, converting compressed air energy into high-pressure hydraulic energy. The pneumatic oil pump amplifies pressure through the area ratio of the pneumatic and hydraulic components, thus outputting high-pressure oil. When using a bidirectional hydraulic pipeline design, the pneumatic reciprocating cylinder can automatically switch oil circuits to achieve continuous oil supply, with a check valve controlling unidirectional oil flow during this period. A directional valve is used to control the oil flow direction to adapt to different working requirements.
