[Short & Portable]- This small hydraulic lifting cylinder is small in size, strong in load-bearing capacity. It is especially suitable for use in narrow spaces and has the characteristics of lightness and flexibility. And the surface is finished with chrome plate to protect the using of longevity of the product. [Split Design]- The split cylinder jack is easy to disassemble for storage. But it must be used with a hydraulic pump. The 10T/20T must be used with CP-180 hydraulic pump (ASIN: B08QTXY2D2); the 30T/50T must be used with CP-800 hydraulic pump (ASIN: B08QV222RP). [Convenient Operation]- The cylinder ram has the ability to automatically retract. As long as the switch is released, the protrusion can be leveled automatically, which is simple and convenient to operate. [Wide Applications]- The hydraulic jack can be widely used in power, chemical, steel, bridges, shipbuilding, machinery and other industries. However, it does NOT apply to cars! 20 US Ton Capacity. 6″ Stroke Connector Type: 3/8″ NPT CR-400 quick hydraulic coupler with dust cap Max Pressure 10,000 PSI. Single acting – Pressure extend, Spring return. Hard black oxide plated high carbon steel ram. Proprietary heat-treated steel shell. This hydraulic jack cylinder has the advantages of small size, suitable for narrow space position. A great helper for riggers, fabricators, welders, and automotive body and frame shops in electric power, chemical industry, steel, Bridges, machinery, and other industries.