A marine capstan is a mechanical device used aboard ships for various tasks related to handling ropes, cables, and anchors. It consists of a capstan head (sometimes called a barrel) mounted on a rotating shaft. Capstans can be powered manually by sailors turning the capstan bars inserted into sockets around the drum, or they can be powered by electric, hydraulic motors for larger vessels.

Marine composed of a capstan head, reduction device, brake, etc. The main shaft is generally perpendicular to the deck, and a cable reel made of cast steel is installed on the main shaft and rotates along with the main shaft. When winding the rope, the cable reel can slide up and down. There are several holes at its upper end, and a push rod is inserted when manually driven, and a pawl is installed at the lower end to prevent reverse rotation. Capstans are commonly used for mooring, lifting cargo, and anchoring. When tying the cable, tie the cable around the cable post or cable reel.

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