615147 JACK HYDRAULIC 55MM-STROKE, 20TON HYDRAULIC RETURN TYPE

Useful for operating a variety of hydraulic tools. It is most suitable as a hydraulic opener for ships hatch covers but is also used for a variety of purposes at shipyard construction and factory job sites. Lifting and lowering tests are executed at 100 % rated capacity. Horizontal capacity is guaranteed at up to 1/20 of the total rated capacity. The cylinder and piston are made of heat-treated, reinforced chromemolybdenum steel and the inner linings of the cylinder piston and the rod are plated with hard chrome. The couplings and screws for attachments are interchangeable. A wide variety of series and models are available. Please specify lifting capacity tons and stroke mm when ordering. Returning System by Hydraulic Force: 1. Horizontal extension or inverse extension (like press) feasible, because of hydraulic returning. 2. Most adequate for remote controlled operation.(Requires 2 pieces of hose, for returning purpose) 3. No damage occurs in Guide-part, even when strokes are extended to maximum.