China Panama Chock Deck Mounted for Ship Mooring Fitting

China OEM Customized Bulwark Mounted Mooring Chock

ISO13729 Closed Chock

The closed chock is made according to the standard of ISO 13729. It is normally applied for the ship which uses wire ropes. The radius of the closed chock surface was designed based on the bending ratio of rope through the chock of not less than twelve times the wire rope diameter. The closed chocks can also be classified into two types by its installation site including deck-mounted closed chock and bulwark mounted one.

ISO13728 Panama Chock

The Panama chocks are made according to the ISO 13728 standard and are normally adopted for ships passing through the Panama Canal, which are normally assisted by locomotives using steel towing wire. They meet normal mooring requirements and Panama Canal requirements. The nominal size the Panama chock is denoted by reference to the width of the opening, in millimetres, which are 310mm and 360mm. It can be classified as deck-mounted Panama chock and bulwark mounted one according to their installation site.

ISO13713 Mooring Chock

The mooring chock is made according to the ISO 13713 standard and is a type of ship's mooring and towing fitting installed on the shipside to lead the mooring and towing rope from the ship's inboard to outboard. The mooring chocks are normally adopted for ships which use nylon or other synthetic ropes rather than wire ropes considering the small bending ratio. It has two types depend on its installation including deck mounted one and bulwark mounted one.

Bulwark (EU Type) Towing Chock

Bulwark towing chock also known as EU type towing chock, is installed on the bulwark. It is made of cast steel. The surface of the towing chock is fine polished by 2-layer of shop primer anti-rust painting after sandblasting 2.5and well painted without any bur and the edge is to protect the towing ropes from broken during work. It is similar to NS 2589 chock, not often used in Asian ships.

DIN81915 Panama Chock

The Panama chock is made according to German Standard DIN 81915. The Panama chock, mounted on deck or bulwark, is closed chock which is used to control the position of mooring ropes. The material of the chock is GS-38 (material 1.0420) according to DIN1681 (cast steel). All the edges of the Panama chock must be ground smooth, especially where the rope is in contact with the chock. And it is required to be a blast and primed for the surface treatment. It is used for vessel, tug, cargo ship, military ship, industrial ships etc.

NS2587 Bulwark Mounted Mooring Chock

NS2587 bulwark mounted mooring chock sometimes also called NS2587 mooring pipe, follows the strict quality control system. Its surface is smooth without burs or sharp edges. It helps reduce the friction of the mooring rope. But this type of chock cannot satisfy the requirements of the Panama Canal Commission (PCC). For this chock, it has two optional nominal dimensions. Type A is a welded mooring chock. It is more often used in European countries than in Asia.

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