This MMNZE 30-ton hydraulic cylinder jack kit is serious heavy-duty equipment for professionals who need reliable lifting power! The 2-stroke design with automatic retraction makes operation efficient - after pressure release, the jack retracts on its own without manual effort. The CP-700 hydraulic hand pump is specifically matched for this 30-ton cylinder, providing the right pressure and flow for optimal performance. The entire system is built from heavy-duty metal with smooth surfaces and excellent sealing to prevent oil leaks. What's really versatile is how you can use this system - vertical, horizontal, or even inverted orientations are possible, and the quick coupling allows fast setup changes. This kit is perfect for riggers, fabricators, welders, and frame shops working in construction, petroleum, electric power, metallurgy, chemical plants, ships, bridges, and steel industries. The tonnage is sufficient for serious lifting tasks, and the stroke provides good working range without getting stuck or risking cylinder burst. It's particularly useful in narrow spaces where traditional jacks won't fit. The manual pump includes a ZG3/8 connector, anti-slip handle, oil return switch, and oil hose for complete functionality. Important safety note - always use on firm, flat surfaces, not soft or rough ground, and incorrect use can damage the jack or cause serious accidents. This isn't for automotive use but rather industrial applications where real power is needed. With a one-year quality assurance, you can purchase with confidence knowing you're getting professional-grade equipment that delivers when you need it most!