Single-acting hollow hydraulic jack The special hollow piston design allows the drawbar or cable to run through the entire cylinder for mechanical traction systems. It can also be used as a regular jacking. In operations that require traction, the special hollow piston design allows the tow bar or cable to pass through the entire cylinder operation, and is often used for backward traction and forward squeezing operations in various press-fit and mechanical traction system operations. When equipped with interchangeable steel reinforced piston saddles, it can also be used for routine lifting operations.

When purchasing such jacks, we need to consider the following aspects.

To confirm the required force (tonnage), it is recommended to choose a hydraulic jack with a tonnage 20% higher than the load. Distinguish between maintenance grade and industrial grade according to the requirements of working conditions, if the hydraulic jack is used for production or particularly high frequency use, please specify. According to the actual working conditions, put forward high temperature or anti-corrosion requirements, our company will use special surface treatment methods and special material seals. Whether a hydraulic jack needs to be resistant to bias loads, you can choose a special load-bearing design or an optional hydraulic jack with a tilting saddle. When the customer purchase order acts as a hollow plunger hydraulic jack, it is clearly stated that the cylinder needs to withstand a certain degree of partial load, so our sales engineers also gave the equipped saddle when giving the product sales list. In addition, when choosing a supporting hand pump for a jack, it is necessary to choose the most suitable pump according to the cylinder oil capacity of the jack.