Dual-acting hydraulic jack is a kind of rigid lifting device with plunger or hydraulic cylinder. It is suitable for high-tonnage lifting operation. It requires precise control of object lifting and maintenance operation. In horizontal slip installation of tunnel pipeline, its hydraulic reset design can quickly and effectively retract the piston back to its original position, and prepare for the next pipe. Principle of Double-acting Hydraulic Jack

 

Hydraulic jacks of different types have different working principles. Hydraulic jacks play an important role in the industrial field. Using hydraulic oil transmission principle, the conventional problems encountered by hydraulic jacks in various channels can be or slightly less than their many advantages. When the manual oil pump keeps pressing oil into the cylinder, because the oil pressure keeps increasing in the cylinder, it will force the piston and the weight on the piston to move upward together. When the piston reaches the stroke, it will not continue to move upward. By working the pump station in the opposite direction, the reverse flow of the oil pipeline is promoted and the piston of the cylinder is driven to retract.

 

Application Method of Double-acting Hydraulic Jack

 

Connect the tubing: First check the connection of each component, the fast joint should be inserted firmly. Use manual pump or electric pump to supply oil to the hydraulic jack, and connect the jack with the pumping station through the tubing.

 

Strictly abide by the provisions of the main parameters, we must bear in mind that we can not be super-high overload, if not, the lifting height and the lifting tonnage will exceed the specified weight, the top of the cylinder will begin to leak oil.

 

Position leveling: to ensure the level of the bottom, while taking into account the soft and hard conditions of the ground, whether to pad tough wood or cushion blocks, whether to place smoothly, in order to avoid the weight sinking or tilting.