Name: Grade 100 Shortening Clutch Locking type SCL type
Brand: H-Lift Industries Co Ltd
SKU: 505019
Availability: InStock
Rating: 5 (1 reviews)

No.505019

The Grade 100 Shortening Clutch Locking Type (SCL Type) is a heavy-duty rigging component designed for the safe, non-destructive length adjustment of chain legs in overhead lifting slings.

Safety Locking Mechanism: Equipped with an integrated safety pin that securely traps the engaged chain link, preventing it from accidentally falling out or disengaging during slack conditions.
Full Capacity Retention: Engineered to perfectly cradle the chain without bending or distorting the links, ensuring the lifting assembly maintains 100% of its Working Load Limit (WLL).
Grade 100 Strength: Manufactured from premium quenched and tempered alloy steel, offering up to 25% higher lifting capacity compared to standard Grade 80 clutches.
Size & Load Range: Specifically designed for Grade 100 lifting chains from 6mm to 16mm, supporting WLL capacities ranging from 1.4 tons up to 10 tons.

Technical Data
G-100 Alloy Fittings

Grade 100 Shortening Clutch - Locking Type (SCL)

Secure Chain Shortener with Spring-Loaded Pin

Grade 100 Alloy Steel Positive Locking Pin 100% WLL Capacity Clevis Connection

G-100 Shortening Clutch Locking type SCL

*Spring-loaded pin prevents accidental chain release

Product Features

Positive Locking Mechanism: Unlike standard grab hooks, the SCL clutch features a spring-loaded locking pin. This secures the chain link within the clutch, preventing it from jumping out when the chain goes slack or vibrates.
100% Working Load Limit: The deep "chain pocket" design fully supports the chain link, allowing the sling to be used at its full rated capacity (100% WLL) without reduction. (Standard grab hooks often require a 20% reduction).
Direct Clevis Connection: Features an integrated clevis pin for direct attachment to the chain leg, creating a compact and secure assembly.
One-Handed Operation: The locking mechanism is designed for easy engagement and release, allowing for quick adjustments on the job site.
Grade 100 Strength: Manufactured from G100 alloy steel, providing 25% higher capacity than Grade 80 equivalents.
Standard: Compliant with EN 1677-1 and ASTM A952.

Shortener Comparison: Clutch vs. Grab Hook

Type	Safety	Performance
Locking Clutch (SCL) (This Product)	Maximum Safety	100% WLL. Chain is locked in and fully supported. No accidental release. No load reduction.
Grab Hook (CGH) (Standard Hook)	Basic	Standard Use. Economical but chain can fall out if slack. May require WLL reduction (-20%).

Technical Specifications

Item No.	Chain Size (mm)	WLL (ton)	Main Dimensions (mm)								Weight (kg)	Product Code
Item No.	Chain Size (mm)	WLL (ton)	A	B	C	D	M	N	φ	L	Weight (kg)	Product Code
10-SCL-06	6	1.4	38	7.5	27	7.5	29	16	7.7	73	0.25	505019006
10-SCL-08	8	2.5	50	9.5	33	9.5	36	23	9.2	92	0.41	505019008
10-SCL-10	10	4	60	11.7	43.5	11.7	45.4	36	13.3	115	0.75	505019010
10-SCL-13	13	6.7	79	15	55	15	54	34	16.3	149	1.67	505019013
10-SCL-16	16	10	98	19	70	19	70	40	19.7	184	4.2	505019016

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.