Heavy Duty Dee Shackle

 

The Heavy Duty Dee Shackle is a precision-forged steel connecting hardware designed for heavy-duty lifting, towing, and structural rigging. Featuring a compact D-shaped profile, it establishes a direct, aligned load path between wire rope slings, chain slings, lifting lugs, and equipment anchor points. Its tight internal dimensions minimize play, making it ideal for high-load applications with strict clearance requirements.

 

 

Model	Working Load Limit (WLL)	Pin Diameter (mm)	Inside Width (mm)	Inside Length (mm)	Approx. Weight (kg)
DS-0.75T	0.75 t	10	13	26	0.10
DS-1.5T	1.50 t	13	19	37	0.22
DS-3.25T	3.25 t	19	27	51	0.65
DS-6.5T	6.50 t	25	37	73	1.52
DS-12.0T	12.00 t	35	51	100	4.31
DS-25.0T	25.00 t	51	73	146	13.80

 

 

Forged High-Strength Steel: Body and pin are precision-forged and quenched/tempered to guarantee structural integrity under extreme dynamic loads.

Compact Aligned Profile: Narrow D-body minimizes axial alignment error and delivers maximum strength in limited clearance spaces.

Precision Machined Pin Threads: Smooth thread engagement ensures quick field installation and secure pin seating.

Complete Batch Traceability: Every shackle is permanently stamped with WLL, size, material grade, and production batch code.

Corrosion Protection: Heavy hot-dip galvanizing exceeds international marine standards for long-term outdoor exposure.

 

 

Heavy Machinery Installation: Securing wire rope slings to machine bed lifting lugs during factory relocation and precision placement.

Structural Steel Fabrication: Direct inline attachment for hoisting structural beams, trusses, and prefabricated modules.

Marine & Offshore Rigging: Mooring line connections, anchor handling, and deck cargo securing (HDG finish required).

Construction & Infrastructure: Heavy crane block connections, pylon erection, and bridge girder lifting.

Mining & Heavy Towing: High-load pulling points and recovery rig connections under severe field conditions.

 

 

Hot-Dip Galvanized (HDG): Thick zinc layer (typically 85 µm or thicker) providing maximum corrosion protection in marine, coastal, and offshore environments.

Electro-Galvanized: Smooth, bright finish suitable for indoor industrial applications and light-duty environments.

Powder-Coated / Painted: Distinct color-coding (e.g., orange, red, yellow pins) for instant visual capacity identification on site.

 

 

Raw Material Control: Verified carbon/alloy steel grades with complete chemical and mechanical traceability.

Closed-Die Forging: Grain flow optimization ensures uniform strength without internal structural flaws.

Quenching and Tempering: Heat treatment develops the required ductility, hardness, and ultimate tensile strength.

Machining and Threading: CNC-machined bearing surfaces and threads ensure effortless pin engagement.

 

 

Screw Pin Type : Ideal for temporary or non-permanent applications where quick assembly and frequent disassembly are required.

Safety Bolt and Nut Type: Features a threaded bolt, nut, and split cotter pin for long-term or permanent installations where pin backing-out due to vibration must be prevented.

 

 

All production batches undergo rigorous quality control:

Dimensional and Visual Checks: Critical body and pin dimensions verified against technical drawings.

Proof Load Testing: Tested up to 2 times WLL in accordance with EN 13889 or ASME B30.26 guidelines.

Non-Destructive Testing (NDT): Magnetic Particle Inspection (MPI) available upon request for high-risk offshore/marine applications.

 

 

Packaging Type: Heavy-duty burlap bags / inner cartons on ISPM-15 compliant heat-treated wooden pallets or steel crates.

Protection: Anti-rust oiled coating, plastic-wrapped pallets with corner edge protectors.

Commercial Terms: MOQ starting from 100 pcs (size dependent); Standard Lead Time 15–30 days; OEM/ODM custom marking supported.

 

 

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