Introduction:
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. It is similar to the type B DIN81915 Panama chock but with larger SWL. Therefore, the mooring chock is applied for Russian vessels and boats much more. It is one of the commonest marine mooring chocks 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. In China, the material always is cast steel (ZG230-450). And the material should have the heat-treatment in normalization. For the storage of the chocks under the open sky, it should be in holding primer cover.
Features Of GOST25056 Deck Mounted Chock
Qualified material with normalized heat treatment;
High SWL for mooring and towing;
Wide range of application;
RMRS class approved;
Strict surface treatment requirement.
The marine chock is an important mooring 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.
Marine mooring chock has two types: deck mounted chock & bulwark mounted chock. The material is casting steel ZG230-450 normally. IACS approved quality to withstand all conditions. Certificated by BV, ABS, LRS, DNVGL, RS, IRS, CCS, KR, NK, etc. We could also provide you with a customized design with CAD drawings.
