ISO 13729-2012 Closed Chock - Marine Chock - Hi-sea

ISO 13729-2012 Closed Chock

ISO 13729-2012 Closed Chock

Application: The closed chock is a type of ships mooring and towing fitting installed on the ship side to lead the mooring and towing rope from the ships inboard to outboard.The closed chocks are normally adopted for ships which use wire ropes.The radius of chock surface was designed based on the bending ratios of rope through the chock of not less than twelve times of the wire rope diameter.

Classifications:

The closed chock is to be classified by its installation site as follows:

-- Type A -Deck mounted closed chock

-- Type B -Bulwark mounted closed chock

Nominal size are :

250x200x214, 300x250x286, 350x250x333, 400x250x381, 450x250x381, 500x250x381, 400x250x428, 450x250x428, 500x250x428, 500x400x428, 500x250x525A, 500x400x525A, 500x250x525B,  500x400x525B.

Standard: ISO 13729-2012

Type A

ISO 13729-2012 Closed Chock

ISO 13729-2012 Closed Chock

Nominal size

L*H*D

l1

l2

l3

l4

H1

H2

H3

R

R1

R2

R3

R4

R5

R6

d1

T

Calculated

weight

(kg)

250*200*214

488

453

76

265

427

368

108

100

219

160

108

86

150

128

108

22

73

300*250*286

614

565

89

330

551

481

144

125

282

212

144

118

180

154

144

26

142

350*250*333

716

660

114

403

601

525

168

125

308

232

168

138

200

170

168

30

222

400*250*381

820

754

139

475

652

553

192

125

335

236

192

156

250

214

192

36

310

450*250*381

870

804

164

524

652

553

192

125

335

236

192

156

250

214

192

36

322

500*250*381

920

854

189

574

652

553

192

125

335

236

192

156

250

214

192

36

337

400*250*428

870

796

139

500

701

609

216

125

360

268

216

178

250

212

216

38

434

450*250*428

920

846

164

550

701

609

216

125

360

268

216

178

250

212

216

38

452

500*250*428

970

896

189

600

701

609

216

125

360

268

216

178

250

212

216

38

472

500*400*428

970

896

176

600

851

759

216

200

435

343

216

178

250

212

216

38

528

500*250*525A

1068

1000

190

652

798

675

264

125

409

286

264

224

320

280

264

40

657

500*400*525A

1068

1000

193

652

948

825

264

200

484

361

264

224

320

280

264

40

724

500*250*525B

1074

1000

176

652

801

680

264

125

412

291

264

218

320

274

264

46

753

500*400*525B

1074

1000

179

652

951

830

264

200

487

366

264

218

320

274

264

46

825


Type B

ISO 13729-2012 Closed Chock

Nominal

size

L*H*D

l1

l2

H1

H2

R

R1

R2

R3

R4

R5

R6

d1

d2

T

θ

Calculated Weight(kg)

250×200×214

516

441

466

306

100

233

153

108

96

150

138

108

80

12

44°

49

300×250×286

638

554

588

410

125

294

205

144

128

180

164

144

100

16

44°

100

350×250×333

736

646

636

449

125

318

224.5

168

150

200

182

168

120

18

55°

141

400×250×381

834

736

684

450

125

342

225

192

172

250

230

192

120

20

47°

184

450×250×381

884

786

684

450

125

342

225

192

172

250

230

192

120

20

47°

194

500×250×381

934

836

684

450

125

342

225

192

172

250

230

192

120

20

47°

202

400×250×428

882

778

732

515

125

366

257.5

216

194

250

228

216

120

22

56°

264

450×250×428

932

828

732

515

125

366

257.5

216

194

250

228

216

120

22

56°

276

500×250×428

982

878

732

515

125

366

257.5

216

194

250

228

216

120

22

56°

288

500×400×428

982

878

882

665

200

441

332.5

216

194

250

228

216

120

22

56°

311

500×250×525A

1078

976

828

551

125

414

275.5

264

240

320

296

264

120

24

53°

379

500×400×525A

1078

978

978

701

200

489

350.6

264

240

320

296

264

120

24

53°

408

500×250×525B

1078

976

828

554

125

414

277

264

238

320

294

264

120

26

53°

405

500×400×525B

1078

978

978

704

200

489

352

264

238

320

294

264

120

26

53°

442


Chocks in Factory:

Marine Mooring Chock

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