SJL series single acting mechanical self-locking hydraulic jack

Single acting mechanical self-locking hydraulic jack
Lifting capacity: 50-800 tons

Journey: 50-300mm

Maximum working pressure: 70MPa

characteristic:
Single acting, load return.

The painted surface has stronger corrosion resistance.

Nut locking makes the load safer and can maintain the load for a long time with absolute safety.

All models come with NPT3/8 "-18 quick couplings and dust caps.

● Overflow hole with limited stroke function.

The special guide ring design provides support for the offset center pressure and effectively prevents direct friction between the piston rod and the inner wall, reducing wear and extending the service life of the hydraulic cylinder.

High hardness, easy to replace with grooved top plate, durable and long-lasting.

Double acting mechanical self-locking can be customized according to customer needs.

Mechanical self-locking hydraulic jacks are mainly used in places where heavy objects need to be supported for a long time. They can still support heavy objects even when the oil pressure is removed, and are safe and reliable. Single acting, load retraction, and nut self-locking make the load safer, especially in large projects, it is an easy to operate and control hydraulic jack. It is designed with a safety pressure protection device and a built-in pressure relief valve to prevent overload and protect the jack for safe operation. The connection of this device adopts high-pressure rubber hose and threaded joint connection, which is fast to use and overcomes the disadvantage of oil leakage in traditional joints. Mainly used for equipment installation, lifting and dismantling operations in various industries such as power, construction, machinery manufacturing, mining, railway bridges, shipbuilding, etc.