Made of heavy-duty metal construction, our hydraulic cylinder jack is durable and designed for long-lasting use. Paint spraying at the surface, prevent scratching and corrosion. Our ram hydraulic cylinder is designed to provide reliable support during operation. No stuck when lifting, large 30 T/66000 LBS tonnage, enough stroke(150 mm/6 inches). Quick connecting head with dust cover, preventing the jack’s inside from dust, features the firm connection with no leakage. A portable handle increases flexibility and convenience. The hydraulic ram cylinder features a smooth surface with circle texture, provide reliable support during working. 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. 30 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.