Strengthened Four-legged Chain Hook for Lifting Huge Cargo

The four-legged chain hook (four-legged chain sling) used to lift large cargo is a lifting tool consisting of four chains, hooks (or lifting rings), and connecting components. It is widely used in factories, ports, construction sites and other scenes, and is specially used for lifting large, heavy or irregular cargo (such as steel structures, mechanical equipment, precast concrete components, etc.). The core of its design is to evenly distribute the load through four chains to ensure a stable and safe lifting process.

Core advantages
Evenly distributed load
Four chains are lifted from all sides (or four corners) of the cargo, distributing the weight of the cargo evenly to each chain. Compared with single-leg or double-leg slings, it can significantly reduce the force on a single chain and reduce the risk of breakage. It is especially suitable for large cargo with irregular or offset center of gravity (such as special-shaped steel structures, large molds).
Strong stability
Multi-leg support forms "multi-point fixation", which can effectively limit the shaking, rotation or tilting of the cargo during the lifting process, ensure the smooth lifting, translation and landing process, and reduce the risk of collision damage or falling of the cargo.
Wide adaptability
The chain length can be flexibly adjusted to adapt to cargo of different sizes and heights;
The lower end connection components can be replaced (hooks, jaws, etc.) to meet the lifting needs of various cargoes such as steel, machinery, concrete components, etc.
High strength and durability
Using high-strength alloy materials and heat treatment processes, the minimum breaking load of the 80-grade chain can reach more than 4 times the rated working load (100-grade is higher), and can withstand heavy loads of large goods (usually rated loads range from 5 tons to 500 tons), and is wear-resistant, impact-resistant, and has a long service life.
3. Applicable scenarios
Heavy machinery manufacturing: hoisting machine tools, engines, large castings, etc., using the four-legged hook to hook the equipment's own lifting lugs to ensure smooth movement.
Steel structure engineering: lifting steel columns, steel beams, steel trusses, etc., four chains connect the four corners of the components to avoid deformation.
Ports and logistics: lifting containers, large wooden boxes (such as wind turbine blade packaging), heavy equipment (such as excavators, loaders).
Construction sites: lifting precast concrete beams, large formwork, steel structure embedded parts, etc.
Metallurgical industry: handling steel billets, steel coils, large rolling mills, etc., with special jaws to achieve lifting without lifting lugs.