High Strength D Shackle

Wanluo supplies you with High Strength D Shackles, which are manufactured through an overall forging process. This process eliminates internal structural gaps, enabling the shackles to withstand axial and partial lateral tensions without deformation or fracture. Equipped with detachable safety pins, they facilitate quick assembly, locking, and disassembly, effectively connecting steel cables, ropes, chains, and lifting accessories. With a high safety factor, strong load-bearing capacity, and wide applicability, they are the core standard fasteners for engineering lifting, offshore mooring, and mechanical tensioning and fixation.

Product details

The High Strength D Shackle adopts one-piece die-forging integral forming process, with a standard closed D-shaped arc main body and matched precision straight bolt pin. The smooth arc structure realizes 360° uniform stress dispersion, avoiding local stress concentration and structural damage during heavy-load tension. The pin body is precisely matched with the pin hole, featuring tight fitting, no shaking and no slipping after locking. All products undergo overall quenching and tempering heat treatment to improve structural toughness and tensile strength, effectively resisting instantaneous impact load and long-term static tension. The surface is treated with hot-dip galvanizing, electro-galvanizing or polishing process to achieve excellent rust and corrosion resistance. Strict destructive sampling testing ensures stable mechanical performance, no fatigue deformation after long-term repeated use, meeting industrial high-standard safety load requirements.

Product Parameter

Core Selling Points

1. Professional integral die-forged structure with dense internal metal texture, no porosity or crack defects. Compared with cast shackles, forged D shackles have higher structural strength and toughness, effectively avoiding sudden fracture during heavy-load lifting.

2. Standard D-shaped stress design achieves omnidirectional uniform force bearing. The arc transition structure disperses tension and impact force, solving the problem of local stress damage of U-shaped shackles in narrow assembly spaces, with higher structural stability.

3. Precise matching safety pin locking system. The straight pin fits tightly with the pin hole, not easy to loose or fall off during vibration and swinging. It ensures 100% safety locking during dynamic lifting and tension operation.

4. Excellent environmental adaptability. Hot-dip galvanized and stainless steel models have strong anti-corrosion and rust-resistant performance, adapting to outdoor, marine, humid and harsh industrial environments, with long service life.

5. Wide industrial coverage, widely used in engineering machinery lifting, marine mooring, port cargo handling, power equipment installation, stage rigging, transportation tension fixing and heavy mechanical connection projects.

FAQ

Q1: What is the difference between High Strength D Shackle and U shackle? 

A1: D shackle features narrow D-shaped structure, suitable for narrow space installation and single-direction tension bearing with higher positioning stability; U shackle has wider opening for multi-angle connection. D shackles have stronger overall rigidity and are more suitable for precise heavy-load lifting scenarios.

Q2: What is the safety factor of forged D shackles? 

A2: Our standard D shackles adopt industrial-grade safety design with a breaking load 6 times the rated working load, passing strict sampling impact and tension tests, meeting international lifting safety standards.

Q3: Can D shackles be used in marine environments? 

A3: Yes. Hot-dip galvanized and 316 stainless steel D shackles are specially optimized for salt spray and humid environments, with excellent corrosion resistance, very suitable for ship mooring and marine engineering operations.

Q4: Are forged shackles better than cast shackles? 

A4: Definitely yes. Forging refines the metal internal structure, making the shackle tougher and more pressure-resistant, not easy to break under instantaneous impact load. Cast shackles are brittle and have hidden fracture risks, not suitable for heavy-load safety lifting.

Q5: Can high-load customized D shackles be produced? 

A5: Yes. We support customizing super-large load-bearing specifications, special-sized opening widths, high-strength alloy materials and customized anti-corrosion treatments for special engineering rigging needs.