Advantages ---[Ultra-thin & Portable] This low profile hydraulic ram 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. ---[Wide Range of Applications] This hydraulic jack cylinder is a great helper for riggers, fabricators, welders, and frame shops in electric power, chemical industry, steel, Bridges, machinery, and other industries. ---[Multiple Options] We have 5-30T hydraulic single-section and multi-section jacks, which can meet your needs in different places. 10T and 20T jacks are suitable for CP-180 pump and 30T is suitable for CP-700 pump. ---[Can be used with multiple tools] Manual hydraulic pump can be used with split hydraulic products, such as punching machine, cutting machine, bending machine, hydraulic jack, hydraulic puller, split hydraulic clamp, flange expander, split ram and other separate hydraulic equipment. PLEASE READ THE PARAMETER CAREFULLY BEFORE BUYING IT!（ESPECIALLY STROKE） SMOOTH LACQUER SURFACE The surface of hydraulic ram cylinder is painted with lacquer, which is not easy to rust.Made of heavy-duty metal construction, our hydraulic cylinder jack is durable and designed for long-lasting use. ANTI-DUST COVER & ZG3/8 CONNECTOR Anti-dust cover can reduce pollution, thereby prolonging the service life of hydraulic cylinder. The joint adopts threaded ZG3/8" joint and has a compact structure. EFFECTIVE STROKE It has the advantages of smaller size and greater working capacity, especially in a small space location.This hydraulic jack has the functions of portability, flexibility, and large lifting force. Q&A How to use it? -First, connect the joint of the manual pump to the jack; then, select the position and tighten the drain screw of the hydraulic pump to work. To lower the piston rod, please loosen the manual oil handwheel slightly counterclockwise, and the cylinder will discharge and the rod will gradually descend. Or the drop speed will be very fast, which is very dangerous. Why must it be placed on a flat surface? -All cylinders must be placed on a flat and resistant ground. If they are placed on sandy ground or on loose surfaces, the cylinder will be damaged. Why doesn't the piston fall back automatically? -After the pressure is relieved, the piston can only retract with the help of heavy gravity. It is recommended to pressed directly by hand. Is it safe to use this hydraulic jack? -This cylinder has a spring return structure. After lifting, it can be removed fastly, but the connected hose cannot be used to pull the cylinder. Since the jack's lift stroke is short, please never exceed the rated stroke to avoid defective. Does the hydraulic pump come with hydraulic oil? -Yes, this hydraulic pump is shipped with hydraulic oil.