Hydraulic Cylinders - Double Acting

		YH - Universal Cylinders Double acting with hydraulic return 5 to 200 tonnes Double-acting cylinder with height retraction speed. The long piston guidings and the outstanding material make the cylinders extremely robust and suitable even for the toughest jobs. Features Yale ChroMo Design Operating pressure 700 bar Double acting with hydraulic return Long bronze piston guidings Piston strokes from 30 up to 500 mm Cylinder body and piston are made from chromium-molybdenum steel and heat treated Generous double bronze bearing on the hard chromium plated version Metric mounting threads on cylinder housing, in the bottom of the cylinder body and in the piston rod Stop ring can bear full capacity (pressure) With Dirt Wiper Interchangeable hardened saddle Oil port thread: 3/8 NPT Incl. 2 female coupler halves CFY-1 From YH-30/200 with carrying handle From YH-50/350 with lifting rings Appliications These extremely robust double-acting cylinders are specially designed for universal heavy duty lifting and positioning applications as well as for industrial production and assembly jobs. The cylinders offer high pushing and pulling forces. The double-acting design assures a high piston-retraction speed. Major areas of application are bridge building and civil engineering, off-shore, ship building etc. They can also be used as power source in frame presses, stamping fixtures and other high-cycle industrial uses where pushing and pulling forces are required.

		YCH - Hollow Cylinders Double acting with hydraulic return 33 to 140 tonnes In connection with threaded rods, hollow cylinders can create extremely high forces which are helpful for various repair or assembly applications like removing press-fitted parts, pre-stressing of anchors etc. In addition, hollow cylinders are used as power source in puller sets and test rigs. By the use of long threaded rods and by re-adjusting the nut larger distances can be pulled even by the use of short cylinder strokes. Features Yale ChroMo Design Operating pressure 700 bar Double acting with hydraulic return Large centre hole diameter Cylinder body and piston made from chromium-molybdenum steel and heat treated Double bronze bearing of the hard chromuim-plated piston Metric mounting threads at cylinder body and inside of piston Interchangeable hardened saddle Inner and outer dirt wipers Oil port thread: 3/8 NPT Incl. 2 female coupler halves CFY-1 All cylinders with carrying handle, from YCH-62/250 with 2 lifting rings Applications Hollow cylinders are used as the power component within hydraulic puller sets, for pre-stressing of anchor bolts, removing of axles, shafts, bushings, extracting of tubes, as well as for heavy duty pulling apllications. Double acting cylinders have the advantage over single acting cylinders of being able to retract the piston quickly and are ideal therefore for high-cycle pulling apllications.

		YEH - High Tonnage Cylinders Double acting with hydraulic return 260 to 1100 tonnes Cylinders of series YEH are normally used for lifting, positioning or handling of heavy loads. Features Operating pressure 700 bar Double acting with hydraulic return Generous guiding bands ensure a robust piston guiding Hard chromium-plated Piston Stop ring as piston end stop Interchangeable hardened saddle With dirt wiper Oil port thread: 3/8 NPT Incl. 2 female coupler halves CFY-1 Mounting threads on request All cylinders have lifting rings Applications Double acting high tonnage cylinders are used for various lifting, positioning, supporting or levelling jobs in cases where heavy loads have to be handled. Lifting and moving of large machinery, steel construction, bridges or similar loads, supporting of buildings and foundations. Further applications are positioning, weighing, through pressing, stress testing or jacking of all kinds of loads. High tonnage cylinders are found in nearly all areas of industrial activity like steel production, heavy machine manufacturing, civil engineering, ship building, mining, off-shore industry or testing laboratories.

		ST - Hydraulic Stage Lifts Capacities up to 200 tonnes Stage lifts are compact "low head room" lifting devices for universal lifting applications. They are designed tolift and lower loads over high distances. Stage lifts overcome the usual limitations of the lifting height imposed by stroke length. Stage lifts operate with "double-acting" hydraulic cylinders (return stroke by hydraulic pressure) and are equipped with a load spreading plate and a piston support plate. Click here for a demonstration of how they operate. Features Yale ChroMo Design High quality materials ensure long service life Stage lift body made from high grade aluminium Low cost lifting systems possible, (3-point resp. 4-point) Low weight (e.g. 60kg for a 50 ton unit) Large diameter tilt saddle Incl. coupler halves and carrying handles Function A stage lift operates inverted and lifts the load via the bottom of the cylinder whilst it climbs on a pile of support bars (wood or aluminium). In principle the load can be lifted to any height although stage lifts are still compact and versatile for "low headroom" lifting applications. A further big advantage is that the load can be supported safely on the pile of support blocks at any stage. The simple "3-step operation" eliminates the need for additional holding arrangements and the repositioning or replacing of cylinders which are normally required for a higher lifting distance. A stage lift climbs up and down on its own. Depending on the power pack, selected stage lifts can be controlled individually (by hand or motor pump) or together in a synchronised arrangement with multi-flow pumps.
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