The jacking system is widely used in various types of offshore self elevating platforms, such as self elevating drilling platforms, liftboats, wind power installation ship platforms, salvage/drilling/pile driving/stone throwing leveling and other construction operation platforms. It is a very complex device that can insert piles, pull piles, raise and lower the platform, and fix the platform at a certain height.

The types include gear rack jacking system, hydraulic pin jacking system, and heavy-duty friction winch jacking system. Gear and rack jacking systems are divided into electric gear and rack jacking systems driven by motors and hydraulic gear and rack jacking systems driven by hydraulic motors. The lifting mechanism of the hydraulic pin type jacking system can be in the form of a ring beam or a lifting yoke, and can be divided into single step, double step, and continuous types according to different lifting actions.

Generally, platforms in shallow waters that require frequent lifting and lowering use hydraulic pin type jacking systems, while platforms in deeper waters that require less frequent lifting and lowering use gear rack type jacking systems.

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