Marine chocks

Bulwark Chock (EU Type) Towing Chock 

  • Material: Cast Steel
  • Nominal Size: 315*250mm to 1000*800mm
  • Weight:198KG to 1580KG
  • Finishing: the mooring chocks shall be coated externally with an anti-corrosion protective finish. 
  • Installation site: on the bulwark


The bulwark towing chock also known as EU type towing chock is installed on the bulwark. The bulwark towing chock is the towing fittings applied for the towing purpose by towing lines. It is made of cast steel, generally by ZG230-450 in Chinese standard. Both the material and types of marine chocks can be customized according to your requirements and design. The design mostly has high SWL. The surface of the towing chock is fine polished by a 2-layer of shop primer anti-rust painting after sandblasting 2.5 and well painted without any bur and the edge is to protect the towing ropes from broken during work. It is similar to NS2589 chock, not often used in Asian ships.

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.

Machine Specifications

EU Type Towing Chock
Nominal size(mm) Weight(kg) Dimensions(mm)
315*250 198 315 250 695 630 432 342 168 497
425*280 358 425 280 925 780 516 450 224 661
600*315 547 600 315 1160 876 571 504 250 866
600*450 850 600 450 1160 1010 706 504 260 856
800*600 1200 800 600 1500 1300 860 580 290 1060
1000*800 1580 1000 800 1760 1560 1250 700 350 1450

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