Marine chocks

JIS F 2030-1978 Single Point Mooring Pipe  

  • Material: Cast SteelZG230-450
  • Type: Type A & Type B
  • Nominal Size: 400mm to 800mm
  • Weight: Type A: 210kg to 880kg; Type B: 190kg to 830kg.
  • Finishing: the mooring pipes shall be coated externally with an anti-corrosion protective finish.
  • Installation site: on the bulwark.
  • Certifications: BV, CCS, ABS, DNV, etc. 


The single point mooring pipe is a bulwark mounted type marine chock and is made according to the standard of JIS F 2030-1978 (Japan Industrial Standards F). They are part of standard mooring setup, between ship bitts and the mooring bollards, suitable for temporary mooring and used especially for the guidance of rope mooring lines onboard a large vessel. The JIS F2030 mooring pipe is found at the vessel’s bow bulwarks, below the gunwale, to avoid wear and tear of the mooring line. B type JIS F2030 mooring pipes are welded at the vessel bow. It is manufactured by steel according to the requirement of standard JIS G 5101. It has two types, which are oval single point mooring pipe (Type A) and the oval inclined one (Type B).

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

JIS F 2030-1978 Oval Single Point Mooring Pipe (Type A)
Nominal Size Dimensions(mm) Weight
(mm) L L1 H H1 B C (kg)
400 400 780 300 680 350 65 210
500 500 940 400 840 400 70 340
600 600 1100 450 950 450 75 490
700 700 1260 500 1060 500 80 600
800 800 1420 600 1220 550 85 880
JIS F 2030-1978 Oval Inclined Single Point Mooring Pipe (Type B)
Nominal Size Dimensions(mm) Weight
 (mm) A B C D E H I (kg)
400 800 320 300 350 300 800 400 190
500 960 370 350 400 400 960 500 310
600 1120 420 400 450 450 1120 600 460
700 1280 470 450 500 500 1280 700 660
800 1440 520 500 550 600 1440 800 830

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