The mooring chock is a very important marine equipment. There’re different types of mooring chocks with different standards including ISO, JIS, DIN, NS. SWL will be from 8KN to 3000KN according to your requirements. In the process of mooring ship, it bears huge loads. Usually, the ship bollards and mooring chock are for the whole ship mooring use. The general bow and stern of ship block the bollard fairlead, quantity large. Of intermediate section above without or bollards, fairlead rarely. Fairlead is oblique chock more insurance, because it is closed, the cable will not jump out. The triangle chocks are widely used for small boats and different vessels, such as container vessels, tankers, bulk carriers, tug, dry cargo vessels, etc.
JIS F 2030-1978 Single Point Mooring Pipe
The mooring pipe is a bulwark mounted type and is made according to the standard of JIS F 2030-1978 (Japan Industrial Standards F). It is manufactured by cast steel JIS G 5101. It is a kind of closed chock and is an important part of standard mooring setup, between ships bitts and the mooring bollards. It is used to control the position of mooring ropes on board for large vessels. It has two types, which are oval single point mooring pipe (Type A) and oval inclined one (Type B).
GOST25056 Deck Mounted Mooring Chock
The marine mooring chock is deck mounted type and the manufacturing method should be the requirement of GOST25056 standard. It is a type of ship’s mooring and towing fitting installed on the board to belay the mooring and towing rope, which is widely used in Russia. The yield strength and tensile strength for the material of GOST25056 chock should be more than 216MPa and 412MPa according to the requirements. YSmarines provides you with the best quality deck mounted chock with high quality cast steel for heavy use and high working load.
Triangle Type Mooring Chock
The mooring chocks are triangle types. They will be towed on deck with towing bitts. The shape of the towing chock is a triangle. And the surface of the mooring chocks is fine polished and well painted without any bur. The inside of the triangle type mooring chock can also be covered by 3mm or 5mm SS316L plate to protect the chock and mooring ropes both. They are widely used for small boats and different vessels, such as container vessel, tankers, bulk carriers, etc.
NS2590 Deck Mounted Mooring Chock
NS2590 mooring chocks are deck mounted types and are approved by Panama Canal Commission(PCC). They are welded mooring chocks. The chocks shall be cleaned to Sa2.5 in accordance with Swedish standard SIS 05 59 00 and painted with an anti-corrosive primer. Surfaces coming into contact with the mooring the line shall be smooth. Furthermore, burrs or sharp edges shall not occur.
NS2589 Bulwark Mounted Mooring Chock
The mooring chocks are the bulwark mounted types and are made according to the NS 2589 standard. They are approved by the Panama Canal Commission (PCC). They also are casting mooring chocks.The Nominal Size of 300*250mm is designed as a single chock in PCC and shall be capable of withstanding a strain of 445KN on a towing wire. The Nominal Size of 400*250mm is designated as double chock in PCC and shall be capable of withstanding a strain of 625KN on a towing wire.
JIS F 2017-1982 Panama Chock
The Panama chock is made according to the JIS F 2017-1982 standard and is popular as mooring equipment, which can stand great loads when mooring ships and vessels. It is made of high quality cast steel. It can be either mounted directly onto or into the hull or be supplied with a base plate to be bolted to the plinth. It is used for ships passing through the Panama Canal. There will be two types of the Panama chocks according to their installation site, which includes deck mounted (AC type) Panama chock and bulwark mounted (BC type) one.
JIS F 2007-1976 Mooring Pipe
JIS F 2007-1976 Mooring Pipe is a bulwark mounted chock, which is used to guide or lead the mooring ropes. The material of the mooring pipe is cast steel according to JIS G 5101. Its inside shape of the mooring pipe makes the surface more smooth and can reduce the friction of the mooring ropes. It has two types according to its shape, which includes oval-shaped mooring pipe and circular shape one. The nominal size of the mooring pipe ranges from 150mm~500mm.
JIS F 2006-1976 Open Chock
The Open Chock is made according to the standard of JIS F 2006-1976 and is a special model of the marine mooring chock used for small boats to lead the mooring rope from ship’s inboard to outboard. It also can be applied for military and industrial ships, operating effectively throughout the world. The open chocks have two types according to their material including the SC type one made by cast steel and the FC type made by cast iron. Both types are deck mounted open chock.
JIS F 2005-1975 Closed Chock
The closed chock is made according to the JIS F 2005-1975 standard of the Japanese Standard Association. The closed chock is made of cast steel. Its surface is galvanized, polished and painted to be smooth, which can reduce the friction of the mooring and towing ropes. It is welded at a bow ship. It is used for temporary mooring to guide rope from inboard to outboard a large vessel and applied at the vessel’s bow bulwarks to prevent wear and tear of the mooring line.
For more detailed information, please visit the website of YSmarines marine equipment, in which the users can get the detailed professional knowledge about the marine mooring chock.
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