Marine chocks

JIS F 2007-1976 Mooring Closed Chock 

  • Material: Cast Steel
  • Type: Type A & Type B
  • Shape: Type A: Oval; Type B: Circular
  • Nominal Size: Type A: 150/200/250/300/350/400/450/500mm
  • Nominal Size: Type B: 150/200/250/300mm
  • Weight: 15.1KG to 115KG
  • Finishing: one layer of shop primer after sandblasting 2.5
  • Installation site: on the bulwark.
  • Applications: Tugboats;Bulk carriers; Containers; Oil tankers; LNG tankers; Other ships or boats.

Introduction:

The JIS F 2007 mooring closed chock is also known as the JIS F 2007 mooring pipe, it is one of the bulwarks mounted marine mooring chocks, which is used to guide or lead the mooring ropes.  installed on the bulwark of the ships. The material of the mooring pipe is cast steel according to JIS G 5101 which is usually in ZG230-450 in China. Its inside shape of the mooring pipe makes the surface more smooth and can reduce the friction of the mooring ropes. And there are many stiffeners on the chocks to make the mooring chocks or closed chocks have higher SWL and much more stable on the bulwark during installation. It has two types according to its shape, which includes an oval-shaped mooring pipe and a circular shape one. The nominal size of the mooring pipe ranges from 150mm~500mm.

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 2007-1976 Oval Shape Mooring Closed Chock (Type A)
Nominal size Weight Dimensions(mm) Wire Rope Dia.
(mm) (kg) L L1 L2 H H1 H2 B C (mm)
150 15.1 150 300 270 110 260 202 129 40 16
200 20.5 200 368 334 150 318 250 143 42 18
250 26.9 250 430 394 200 380 308 155 44 20
300 42.7 300 500 460 250 450 372 169 52 22.4
350 50.8 350 560 518 250 460 378 179 55 24
400 76.3 400 632 586 250 482 394 195 60 26
450 102 450 700 650 250 500 406 209 62 30
500 115 500 760 708 250 510 412 219 65 35.5
JIS F 2007-1976 Circular Shape Mooring Closed Chock (Type B)
Nominal size Weight Dimensions(mm) Wire Rope Dia.
(mm) (kg) L L1 L2 B C R3 T (mm)
150 17.5 150 318 288 144 42 72 12 16
200 23.5 200 380 346 155 44 78 12 18
250 37.5 250 450 414 169 52 85 15 20
300 45.5 300 510 470 179 55 90 15 22.4

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