{"id":2779,"date":"2026-07-02T06:42:37","date_gmt":"2026-07-02T06:42:37","guid":{"rendered":"https:\/\/hydrauliccylindersprice.com\/product\/ro-ro-platform-main-operating-cylinder\/"},"modified":"2026-07-02T06:42:52","modified_gmt":"2026-07-02T06:42:52","slug":"ro-ro-platform-main-operating-cylinder","status":"publish","type":"product","link":"https:\/\/hydrauliccylindersprice.com\/hi\/product\/ro-ro-platform-main-operating-cylinder\/","title":{"rendered":"Ro-ro Platform Main Operating Cylinder"},"content":{"rendered":"

<\/p>\n
\n Ro-Ro Platform<\/span><\/p>\n

Ro-ro Platform Main Operating Cylinder<\/h2>\n

Cars, trucks, buses, and trailers drive on and off a ro-ro vessel via a ramp. The main operating cylinder raises, lowers, and retracts this ramp \u2014 a multi-tonne steel structure that must align precisely with quay heights ranging from 1 to 12 metres above waterline.<\/p>\n

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100\u2013400mm<\/span>Bore<\/span><\/div>\n
\u22647,300mm<\/span>Stroke<\/span><\/div>\n
3,500 KN<\/span>Thrust<\/span><\/div>\n
28 MPa<\/span>Pressure<\/span><\/div>\n<\/p><\/div>\n<\/section>\n
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Technical Specifications<\/h2>\n
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\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Product Name<\/td>\nRo-ro Platform Main Operating Cylinder<\/td>\n<\/tr>\n
Features<\/td>\nRetract and extend the springboard and ramp<\/td>\n<\/tr>\n
Bore Diameter<\/td>\n100 mm \u2013 400 mm<\/td>\n<\/tr>\n
Rod Diameter<\/td>\n50 mm \u2013 180 mm<\/td>\n<\/tr>\n
Stroke<\/td>\nUp to 7,300 mm<\/td>\n<\/tr>\n
Thrust Force<\/td>\nMaximum 3,500 KN (bore 125 mm \/ 28 MPa)<\/td>\n<\/tr>\n
Working Pressure<\/td>\nUp to 28 MPa<\/td>\n<\/tr>\n
Application<\/td>\nRo-Ro Platform (Roll-on\/Roll-off Vessel)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
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How the Ro-Ro Ramp System Works<\/h2>\n
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\"Ro-ro<\/p>\n

A ro-ro vessel loads and discharges vehicles through one or more ramps \u2014 large steel platforms that bridge the gap between the vessel’s vehicle deck and the quay. The ramp must adjust to varying tidal heights, quay elevations, and vessel draft changes as cargo is loaded. The main operating cylinder is the primary actuator that controls all ramp movement.<\/p>\n

The 7,300 mm stroke covers the full range of ramp extension needed for deep-water berths (low quay) through to high-freeboard terminals. The wide bore range (100\u2013400 mm) allows Korea Ever-Power to match the cylinder to the ramp weight \u2014 from small passenger ferry ramps (100 mm bore) to large ocean-going cargo vessel ramps (400 mm bore). Browse the offshore hydraulic cylinder<\/a> range for the complete ro-ro cylinder system.<\/p>\n<\/section>\n

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Ro-Ro Hydraulic Cylinder Family<\/h2>\n
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The ramp system on a ro-ro vessel uses four cylinder types working together. The main operating cylinder is the largest and most powerful:<\/p>\n

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\n Main Operating (#13) \u2190 this product<\/strong><\/p>\n

Raises, lowers, extends, and retracts the ramp. The primary actuator \u2014 bore up to 400 mm, thrust up to 3,500 KN.<\/p>\n<\/p><\/div>\n

\n Latch Cylinder (#14\/#15)<\/strong><\/p>\n

Locks the ramp in the stowed position during sea transit. Available with mechanical or hydraulic self-locking.<\/p>\n<\/p><\/div>\n

\n Jacking Cylinder (#16)<\/strong><\/p>\n

Fine-adjusts the ramp height to match the quay elevation. Smaller bore (50\u2013125 mm), shorter stroke (\u22641,000 mm).<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n

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Key Advantages of the Main Operating Cylinder<\/h2>\n
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\"Ro-ro<\/p>\n