Grade 100 Master Link Assembly with Integrated Shortening Hooks, MAQ type
No.505030
The Grade 100 Master Link Assembly with Integrated Shortening Hooks (MAQ Type) is an all-in-one top rigging component designed specifically for 3-leg and 4-leg chain slings.
Integrated Design: Combines a master link assembly with four built-in grab hooks, eliminating the need for additional connecting links or hardware.
Built-In Shortening: The attached grab hooks function as both direct chain connectors and shortening hooks for quick, safe leg length adjustments.
Multi-Leg Capability: Purpose-built to serve as the upper terminal for 3-leg or 4-leg slings, accommodating chain sizes from 6mm to 16mm.
Grade 100 Strength: Forged from premium alloy steel to deliver 25% higher lifting capacity than Grade 80, supporting Working Load Limits up to 21.2 tons.
Grade 100 Master Link Assembly with Integrated Shorteners - MAQ Type
All-in-One Adjustable Sling Solution
Grade 100 Alloy SteelIntegrated Grab HooksAdjustable Leg LengthLow Headroom
*Integrated hooks simplify 4-leg sling assembly
Product Features
All-in-One Design: Features built-in shortening hooks (grab hooks) integrated directly into the master link assembly. This eliminates the need for separate connecting links and shortening clutches, significantly reducing part count.
Adjustable Sling Solution: The ultimate component for constructing Adjustable 3-Leg and 4-Leg Chain Slings. Allows the operator to quickly adjust the length of each leg to balance irregular loads.
Maximized Headroom: By removing intermediate connecting links, the overall length of the top assembly is shortened. This is ideal for lifting operations with limited headroom.
Grade 100 Strength: Manufactured from G100 alloy steel, providing 25% more lifting capacity than G80 equivalents. This reduces the total weight of the rigging gear, reducing operator fatigue.
Cost & Time Efficient: Speeds up the sling assembly process and reduces inventory complexity (one part instead of many).
Safety: The integrated grab hooks cradle the chain securely, ensuring full load transfer without link deformation.
Building an Adjustable 4-Leg Sling: The Comparison
Method
Parts Required
Advantages
Integrated (MAQ) (This Product)
1 Component (MAQ Assembly Only)
Efficient. Hooks are built-in. Lighter, shorter vertical length, and faster to assemble.
Modular. Allows replacing individual parts, but heavy, bulky, and time-consuming to assemble.
Technical Specifications
Item No.
Chain Size (mm)
WLL (ton)
Included Parts
Weight (kg)
Product Code
Master Link
Shortener Sub-Assembly
10-MAQ-06
6
3.0
10-MLY-06
10-EGC-06 X 4
2.5
505030006
10-MAQ-08
8
5.3
10-MLY-08
10-EGC-08 X 4
5.09
505030008
10-MAQ-10
10
8.4
10-MLY-10
10-EGC-10 X 4
9.02
505030010
10-MAQ-13
13
14
10-MLY-13
10-EGC-13 X 4
15.94
505030013
10-MAQ-16
16
21.2
10-MLY-16
10-EGC-16 X 4
28.1
505030016
Grade 100 Sling Components
Grade 100 Sling Components are high-strength alloy steel lifting accessories designed for heavy-duty lifting applications. Compared with Grade 80, Grade 100 offers higher working load limits (WLL) at the same size, or the same WLL with a smaller, lighter component.
What Does "Grade 100" Mean?
High-Strength Alloy: Heat-treated, quenched, and tempered steel.
Increased Capacity: Typically 25% higher WLL than Grade 80.
Safety Factor: Minimum breaking force ≈ 4 × WLL.
Standards: EN 818-4 / EN 818-6, ASTM equivalents.
Common Sling Components
1. Master Links
Used to connect the sling to the crane hook.
Master Link (ML)
Master Link Assembly (2-leg, 3-leg, 4-leg)
Pear-shaped master links
2. Hooks
End fittings for attaching loads.
Clevis Self-Locking Hook (Common)
Eye Self-Locking Hook
Sling Hook with Latch
Foundry Hook
Shortening Hook (Eye/Clevis)
3. Connecting Links
Used to join chain or components.
Clevis Connector
Hammerlock / Coupling Link
Repair Link (Special use only)
4. Special Components
For complex rigging scenarios.
Swivels (Bearing/Non-bearing)
Chain Adjusters
Lifting Rings (Rotating)
Grab Hooks
Grade 80 vs Grade 100 (Quick Comparison)
Item
Grade 80
Grade 100
Relative Strength
Base
+25% Higher
Sling Weight
Heavier
Lighter
Typical Marking
G80 / 8
G100 / 10
Cost
Lower
Higher
Identification & Markings
Every Grade 100 component must be clearly marked with:
Grade: G100 or 10
Manufacturer's Mark
Size or WLL
Traceability Code (Batch / Heat Number)
⚠️ Safety & Compatibility Warning
❌ NEVER mix Grade 100 with Grade 80 components in the same sling assembly.
✅ Use only Grade 100 chain + Grade 100 fittings together.
Regularly inspect for wear (>10%), cracks, deformation, heat damage, or corrosion.
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