Welded master link / main ring available with engineered flat up to 32mm. Range from 3.2 to 67 Tonne.
Model:
A-344
Quick Ref:
CAGW-5689
More from:
A344 Series Welded Master Link Main Rings: Grade 8/80
Alloy steel - Quenched & Tempered.
Individually proof-tested to the values shown, with certification.
Design Factor of 5 to 1.
Proof-tested with 70% inside width special fixtures sized to prevent localised point loading per EN1677.
Each main link is marked with Product Identification Code (PIC) for material traceability, Grade, CE, chain size and the "CG" (Crosby Group).
A-344 master links are type-approved to DNV Certification Notes 2.7-1- Offshore Containers. These Crosby master links are 100% proof tested. Every batch is impact tested. The tests are conducted by Crosby, and 3.1 test certification is available upon request.
Engineered Flat for use with S-1325A coupler link.
Fatigue rated to 20,000 cycles at 1.5 times the Working Load Limit.
Meets or exceeds all requirements of ASME B30.26, including identification, ductility, design factor, proof load and temperature requirements. Importantly, these links meet other critical performance requirements including fatigue life, impact properties and material traceability, not addressed by ASME B30.26.
13mm through 32mm have Engineered Flat.
Dimensions & Specifications
Stock No.
Weight (kg)
Grade 100 Chain Sling
Grade 100 Chain Sling
WLL (t)
Proof Load (t)
Dimensions (mm)
Engineered Flat Size for S-1325A (mm)
Single Leg Chain Size (mm)
Double Leg Chain Size (mm)
Single Leg Chain Size (mm)
Double Leg Chain Size (mm)
A
B
C
G
1256988
0.36
6, 7
6, 7
6, 7, 8
6, 7, 8
3.2
8
13
60
120
6.5
6, 7, 8
1257002
0.84
8, 10
8
8, 10
8
4.1
10.2
17
90
160
8.5
10
1257072
1.06
10, 13
10
10, 13
10
6.7
16.7
19
90
160
8.5
10, 13
1257268
2.34
10, 13
10
10, 13
10
7
17.5
22
145
275
10.5
13
1257212
1.63
13
10
13, 16
13
8.8
22
22
100
180
10.5
13
1257332
3.04
13
13, 16
13
8.9
22.2
25
145
275
13.5
16
1257282
2.41
13, 16
13
16
16
11.5
28.7
25
115
210
13.5
16
1257382
3.86
13, 16
13
16
16
13
32.5
28
145
275
13.5
16
1257422
4.82
16
16
19, 20
19, 20
17
42.5
32
145
275
16.7
-
1257492
6.88
20
20
20, 22
20, 22
24
60
36
155
285
-
-
1257502
7.31
22, 23
22, 23
23, 26
23, 26
31.5
78.7
40
140
270
-
-
1257562
12.89
26
26
26
26
38.3
95.7
45
180
340
-
-
1257632
19.12
26
26
32
32
45
112.5
51
215
390
-
-
1257573
25.1
32
32
32
32
67
167.5
55
203
406
-
-
5:1 Design Factor. Applications with wire rope and synthetic sling generally require a Design Factor of 5. Based on a single-leg sling (in-line load), or a resultant load on multiple legs with an included angle less than or equal to 120 degrees. Proof Test Load equals or exceeds the requirement of ASTM A952(8.1) and ASME B30.9. Chain slings require that the Design Factor be 4:1. Refer to applications & warnings to determine the product's actual Ultimate Load. There are no manufactured flats on links over 1 1/4" (32mm). The two largest sizes are available globally.
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