The Grade 80 U.S. Type Welded Master Link (WML Type) is a heavy-duty alloy steel lifting component designed specifically as the primary top connection point for constructing highly secure 1-leg and 2-leg chain sling assemblies.
| Feature | Welded (WML Type) | Forged (MLK Type) |
|---|---|---|
| Manufacturing | Flash Butt Welded (Bent Bar) |
Drop Forged (Seamless) |
| Key Benefit | Economical Cost-effective for general use. |
Performance Superior fatigue properties. |
| Application | Standard 1-Leg / 2-Leg Slings. | High-cycle / Critical Lifts. |
1-Leg Sling Application
WML Master Link Detail
2-Leg Sling Application
Manufactured using advanced resistance welding technology. The weld seam is ground flush and positioned in the low-stress zone to ensure maximum structural integrity.
Built strictly to ASTM A952 dimensions. Designed to interface seamlessly with standard North American crane hooks, shackles, and connectors.
Individually Proof Load tested to 2.5 times the Working Load Limit. Features a 4:1 Design Factor and is Quenched and Tempered for superior durability.
| Item No. | Chain Size | WLL (Tonnes) | Main Dimensions (mm) | Weight | Product Code | ||||
|---|---|---|---|---|---|---|---|---|---|
| inch | 1 Leg | 2 Legs (0-45°) | Rope | A | B | D | kg | ||
| 8-WML-12 | 1/4 - 9/32 | 1.12 - 1.5 | 1.6 | 1.6 | 100 | 60 | 12 | 0.27 | 502044012 |
| 8-WML-14 | 9/32 - 5/16 | 1.5 - 2.0 | 2.12 | 2.5 | 100 | 60 | 14 | 0.38 | 502044014 |
| 8-WML-18 | 5/16 - 3/8 | 2.0 - 3.15 | 2.8 | 4.0 | 160 | 90 | 18 | 0.85 | 502044018 |
| 8-WML-20 | 3/8 - 1/2 | 3.15 - 5.3 | 4.25 | 6.5 | 160 | 90 | 20 | 1.20 | 502044020 |
| 8-WML-22 | 1/2 - 5/8 | 5.3 - 8.0 | 7.5 | 8.0 | 180 | 100 | 22 | 1.63 | 502044022 |
| 8-WML-25 | 5/8 - 3/4 | 8.0 - 11.2 | 11.2 | 11.5 | 180 | 100 | 25 | 2.13 | 502044025 |
| 8-WML-28 | 3/4 | 12.5 | - | 11.8 | 270 | 140 | 28 | 3.81 | 502044028 |
| 8-WML-32 | 3/4 - 7/8 | 11.2 - 15 | 16 | 16.0 | 270 | 140 | 32 | 5.05 | 502044032 |
| 8-WML-36 | 7/8 - 1 | 15 - 21.2 | 21.2 | 24.0 | 285 | 155 | 36 | 6.83 | 502044036 |
| 8-WML-40 | 1-1/8 | 25 | - | 25.0 | 300 | 160 | 40 | 8.90 | 502044040 |
| 8-WML-45 | 1 - 1-1/4 | 21.2 - 31.5 | 30 | 31.5 | 340 | 180 | 45 | 12.80 | 502044045 |
| 8-WML-51 | 1-1/4 | 31.5 | 45 | 45.0 | 390 | 215 | 51 | 17.30 | 502044051 |
Grade 80 Sling Components are the long-established industry standard for chain slings and heavy lifting. Fully compliant with international lifting regulations and designed for durability.
Used to connect the sling to a crane or hoist hook.
End fittings for secure load attachment.
Essential hardware to join chains or fittings.
The core lifting medium and adjustment tools.
| Feature | Grade 80 | Grade 100 |
|---|---|---|
| Strength Level | Standard Industry Standard | +25% Higher |
| Component Size | Larger | Smaller (for same WLL) |
| Weight | Heavier | Lighter |
| Cost | More Cost-Effective | Higher |
