Hollow Ram Hydraulic Cylinder We offer you a high-quality hydraulic cylinder jack. Made of solid metal construction, it is heavy-duty and durable. Max capacity up to 30 T/66000 LBS, stroke up to 50 mm/2 inches. No stuck when lifting. Easy connecting head with dust cover, preventing the dust in. Portable handle on the body for easy moving and storage. A great helper for riggers, fabricators, welders, and automotive body and frame shops in electric power, chemical industry, steel, bridges, machinery, and other industries.