Name: Grade 100 Oversized Master Link WMF type
Brand: H-Lift Industries Co Ltd
SKU: 505024
Availability: InStock
Rating: 5 (1 reviews)

No.505024

The Grade 100 Oversized Master Link (WMF Type) is an extra-large top rigging component specifically designed to connect 1-leg or 2-leg chain slings, wire ropes, or textile slings to exceptionally large crane hooks.

Oversized Dimensions: Engineered with expanded internal clearance to comfortably fit over large or non-standard crane hooks where standard master links cannot be used.
Grade 100 Strength: Manufactured from forged high-strength alloy steel, providing up to 25% higher lifting capacity than standard Grade 80 master links.
High Load Capacity: Available in multiple sizes to support heavy-duty lifting requirements, offering Working Load Limits (WLL) ranging from 4 tons up to 16 tons.
Versatile Compatibility: Acts as a reliable upper terminal point, ensuring secure attachment and proper load distribution for various types of lifting assemblies.

Technical Data
G-100 Alloy Fittings

Grade 100 Oversized Master Link - WMF Type

For Large Crane Hooks (Ramshorn / DIN 15401)

Grade 100 Alloy Steel Oversized Engineered Flats For 1-Leg & 2-Leg Slings

*Extra wide opening for large crane hooks

Product Features

Oversized Internal Dimensions: Specifically designed with extra width and length to accommodate large crane hooks (such as DIN 15401 Ramshorn hooks) that are too bulky for standard master links.
Engineered Flat Section: Features a machined or forged flat section on the bottom of the link. This is critical because the thick body of the link would otherwise be too large for standard Connecting Links (Hammerlocks) to close around.
Grade 100 Strength: Manufactured from G100 Alloy Steel, providing 25% higher capacity than G80. This ensures the link is strong enough for heavy lifts despite its larger geometry.
Versatile Application: Suitable for building 1-Leg and 2-Leg chain slings or wire rope slings that require a larger upper attachment point.
Identification: Proof tested and clearly marked with Grade and Traceability codes.
Standard: Meets the performance requirements of EN 1677-4 and ASTM A952.

Fitment Guide: Standard vs. Oversized

Model	Internal Dimensions	Best Application
Oversized (WMF) (This Product)	Extra Wide/Long	Large Crane Hooks. Designed for Din 15401 hooks, Ramshorn hooks, or large mobile crane blocks.
Standard (MKE) (Forged Link)	Standard	Regular Use. Optimized for standard hoist hooks. More compact and cost-effective if it fits.

Technical Specifications

Item No.	WLL (ton)	B.L (ton)	Main Dimensions (mm)			Weight (KG)	Product Code
Item No.	WLL (ton)	B.L (ton)	A	B	D	Weight (KG)	Product Code
10-WMF-1008	4	16	340	180	25	3.7	5050241008
10-WMF-1310	6.7	26.8	340	180	28	4.7	5050241310
10-WMF-1613	10	40	340	180	34	7	5050241613
10-WMF-2016	16	64	340	180	38	8.9	5050242016

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.