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DNV Certified Master Links

Arctic Offshore Master Link
Arctic Offshore Master Link M
Arctic Offshore Master Link
Arctic Offshore Master Link MT

Engineered to Excellence

The Master Links have been engineered to be resistant towards environmental hydrogen embrittlement failures which is always a risk due to the corrosive environment present at sea. High quality steel that is homogeneous with favorable microstructure, small grain size and low amount of impurities is being used in order to produce this high end component. In addition the hardness of the Master Links is below 38 on the Rockwell C scale giving high impact strength even at low operating temperatures (≥ 27J at -40 °C in the weld) and increased resistance towards hydrogen embrittlement failures in an offshore environment.

100% Proof Loading

All lifts require reliable products with the highest safety to ensure a safe working environment as well as to protect the load. Gunnebo Industries perform rigorous testing in their factories before the product is released. Every single one of the components are proof loaded 2.5 times their working load limit and visually inspected by competent personnel. This is done without exception to guarantee highest quality and safety for the end user. To make the master links as suitable as possible for the harsh marine environment, an additional stress relieving heat treatment is performed before the master link is delivered to the end user. This is executed in order to remove stresses that might have formed during the proof loading, which could decrease the life length of the product.

Improved Working Load Limits

The Arctic Offshore Master Links comes in an optimized range where each Master Link will have a wider and higher working load limit span than the old range. This makes it easier from a purchasing point of view, as well as decreasing the risk of incorrect use. A table for the container ratings and recommended master links can be found at the back of this leaflet.

Design Temperature -40 °C

The Arctic Offshore Master Links are highly suitable to withstand shock loads and fatigue, even in extremely cold conditions. The new master link range has a design temperature of -40 °C, making it suitable for even the harshest weather conditions such as in the North Sea.

Arctic Offshore Master Link

Arctic Offshore Master Link M
DNV 2.7-1 and DNV 2.7-3 Type Approved.

Arctic Offshore Master Link

Arctic Offshore Master Link MT
DNV 2.7-1 and DNV 2.7-3 Type Approved.

Product Description
Arctic Offshore Master Link M
Art. No. Code Working Load Limits L E D Weight kgs
DNV 2.7-1 EN 1677-4
EN 13414-1
A-952/A952M
ASME B30.26
(tonnes) Max Container rating* (kgs) SF 5:1 (tonnes) SF 5:1 (tonnes)
Z101486
M-9T- OS 9.3 4500 9.3 9.3 270 140 25 3.0
Z101487
M-12T- OS 12.5 7500 12.5 12.5 270 140 28 3.8
Z101488
M-18T- OS 18.5 13500 18.5 18.5 270 140 32 5.1
Z101489
M-24T- OS 24.0 21000 24.0 24.0 270 140 36 6.5
Z101490
M-30T- OS 30.5 25000 30.5 30.5 270 140 40 8.2
Z101491
M-40T- OS 40.0 N/A 40.0 40.0 300 180 45 11.9
Z101492
M-50T- OS 50.0 N/A 50.0 50.0 300 200 50 15.3
Z101493
M-65T- OS 65.0 N/A 65.0 65.0 350 200 55 20.7
Z101494
M-90T- OS 90.0 N/A 90.0 90.0 450 250 70 42.7
Z101495
M-125T- OS 125.0 N/A 125.0 125.0 450 260 80 57.5
Arctic Offshore Master Link MT
Art. No. Code Working Load Limits L1 L E D I e d Weight kgs
DNV 2.7-1 EN 1677-4
EN 13414-1
A-952/A952M
ASME B30.26
(tonnes) Max Container rating* (kgs) SF 5:1 (tonnes) SF 5:1 (tonnes)
Z101586
MT-9T- OS 9.3 4500 9.3 9.3 430 270 140 25 160 95 22 6.0
Z101587
MT-12T- OS 12.5 7500 12.5 12.5 430 270 140 28 160 95 25 7.8
Z101588
MT-18T- OS 18.5 13500 18.5 18.5 460 270 140 32 190 110 28 10.8
Z101589
MT-24T- OS 24.0 21000 24.0 24.0 540 270 140 36 270 140 32 16.7
Z101590
MT-30T- OS 30.5 25000 30.5 30.5 540 270 140 40 270 140 36 21.2
Z101591
MT-40T- OS 40.0 N/A 40.0 40.0 570 300 180 45 270 140 40 28.3
Z101592
MT-50T- OS 50.0 N/A 50.0 50.0 600 300 200 50 300 180 45 39.1
Z101593
MT-65T- OS 65.0 N/A 65.0 65.0 650 350 200 55 300 200 50 51.2

* For further information, see DNV 2.7-1

Master Link Selection Chart
Container rating (kgs) Enhancement factor Min. required WLL (t) Recommended Masterlink M Recommended Masterlink MT
500
7.00 M-9T OS MT-9T OS
1000
7.00
1500
7.00
2000
7.00
2500
2.880 7.20
3000
2.600 7.80
3500
2.403 8.41
4000
2.207 8.83
4500
2.067 9.30
5000
1.960 9.80 M-12T OS MT-12T OS
5500
1.873 10.30
6000
1.766 10.60
6500
1.733 11.26
7000
1.700 11.90
7500
1.666 12.50
8000
1.633 13.07 M-18T OS MT-18T OS
8500
1.600 13.60
9000
1.567 14.10
9500
1.534 14.57
10000
1.501 15.01
10500
1.479 15.53
11000
1.457 16.02
11500
1.435 16.50
12000
1.413 16.95
12500
1.391 17.38
13000
1.368 17.79
13500
1.346 18.18
14000
1.324 18.54 M-24T OS MT-24T-10 OS
14500
1.302 18.88
15000
1.280 19.20
15500
1.267 19.64
16000
1.254 20.06
16500
1.240 20.47
17000
1.227 20.86
17500
1.214 21.24
18000
1.201 21.61
18500
1.188 21.97
19000
1.174 22.31
19500
1.161 22.64
20000
1.148 22.96
20500
1.143 23.44
21000
1.139 23.92
21500
1.135 24.39 M-24T OS MT-24T-10 OS
22000
1.130 24.86
22500
1.126 25.33
23000
1.121 25.79
23500
1.117 25.79
24000
1.112 26.70
24500
1.108 27.15
25000
1.104 27.59

Pacific Gulf Wire Rope, Inc.
Corporate Address: 1504 Engineers Road
Belle Chasse, LA 70037
Phone: (504) 341-0066
Website: www.pacificgulfwirerope.com


Golden Meadow
Address: 580 A.O. Rappelet Road
Golden Meadow, LA 70357
Phone: (985) 396-2364

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