{"id":2789,"date":"2026-07-02T06:42:37","date_gmt":"2026-07-02T06:42:37","guid":{"rendered":"https:\/\/hydrauliccylindersprice.com\/product\/offshore-crane-folding-arm-tilt-cylinder\/"},"modified":"2026-07-02T06:42:58","modified_gmt":"2026-07-02T06:42:58","slug":"offshore-crane-folding-arm-tilt-cylinder","status":"publish","type":"product","link":"https:\/\/hydrauliccylindersprice.com\/pt\/produto\/offshore-crane-folding-arm-tilt-cylinder\/","title":{"rendered":"Offshore Crane Folding Arm Tilt Cylinder"},"content":{"rendered":"

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Offshore Crane<\/span><\/p>\n

Offshore Crane Folding Arm Tilt Cylinder<\/h2>\n

A knuckle-boom crane folds its arm at a joint \u2014 the tilt cylinder controls this joint angle. Push to extend the forearm outward (8,454 KN), pull to fold it back (3,589 KN). The dual-direction force allows the crane to extend over the vessel side for cargo operations, then fold compactly for storm stowage.<\/p>\n

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\u2264580mm<\/span>Bore<\/span><\/div>\n
\u22645,170mm<\/span>Stroke<\/span><\/div>\n
8,454 KN<\/span>Push<\/span><\/div>\n
3,589 KN<\/span>Pull<\/span><\/div>\n<\/div>\n<\/section>\n
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Technical Specifications<\/h2>\n
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Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Product Name<\/td>\nOffshore Crane Folding Arm Tilt Cylinder<\/td>\n<\/tr>\n
Features<\/td>\nAdjust horizontal angle of the crane forearm (knuckle joint)<\/td>\n<\/tr>\n
Bore Diameter<\/td>\nUp to 580 mm<\/td>\n<\/tr>\n
Rod Diameter<\/td>\nUp to 400 mm<\/td>\n<\/tr>\n
Stroke<\/td>\nUp to 5,170 mm<\/td>\n<\/tr>\n
Thrust Force<\/td>\nMaximum 8,454 KN (push)<\/td>\n<\/tr>\n
Pulling Force<\/td>\nMaximum 3,589 KN (pull)<\/td>\n<\/tr>\n
Working Pressure<\/td>\nUp to 32 MPa<\/td>\n<\/tr>\n
Application<\/td>\nOffshore Crane (Knuckle Boom)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
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How the Folding Arm Tilt Cylinder Works on a Knuckle-Boom Crane<\/h2>\n
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\"Offshore<\/p>\n

A knuckle-boom (folding) offshore crane has two boom sections connected by a knuckle joint. The main boom is raised and lowered by the main boom luffing cylinder (#17). The forearm (jib) is folded or extended by the tilt cylinder. When the forearm is extended, the crane reaches maximum radius \u2014 ideal for loading from supply vessels alongside the platform. When folded, the entire crane occupies minimum deck space \u2014 essential for storm survival stowage.<\/p>\n

The tilt cylinder requires significant force in both directions. The push stroke (8,454 KN) extends the forearm against the weight of the jib, hook block, and suspended load. The pull stroke (3,589 KN) folds the forearm back \u2014 overcoming the moment arm of the extended jib weight and any wind loading pushing the jib outward. Browse the offshore hydraulic cylinder<\/a> range for the main boom luffing cylinder (#17) and A-type mast cylinder (#19).<\/p>\n<\/section>\n

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Why Dual-Direction Force Matters for Knuckle-Boom Cranes<\/h2>\n
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Unlike the main boom luffing cylinder (#17) which primarily pushes, the folding arm tilt cylinder must produce near-maximum force in both push and pull directions. The reasons are specific to the knuckle-boom geometry:<\/p>\n