4* 4 Off-road Rescue of Pintle Hook

In the field of heavy-duty towing and lifting, the pintle hook, with its unique design and reliable performance, has become a key "hub" for connecting wire ropes, shackles, and equipment. It is not only a transmitter of power, but also a manifestation of safety redundancy design, widely used in scenarios such as 4 * 4 off-road trailer rescue.

Core process: Combining forging and casting, combining rigidity and flexibility

A true heavy-duty tiger head hook cannot be achieved by a single process. Its main structure is usually forged with precision, eliminating internal metal defects and refining grain size through forging, thereby obtaining extremely high overall strength and impact toughness to withstand dynamic loads and instantaneous impacts during dragging. The complex reinforcing ribs or non load bearing accessory structures inside the hook body are often formed by casting technology to ensure the complexity of the shape and the flexibility of the design. This combination of the "forging main casting auxiliary" process achieves the optimal configuration of structure and function while ensuring absolute safety strength.

Selected materials and specifications

This type of heavy-duty tiger head hook generally uses 45 # high-quality carbon steel as the base material. After heat treatment, this material has excellent comprehensive mechanical properties - high strength, good plasticity, and moderate hardenability. It can achieve ideal strength toughness matching through quenching and tempering treatment, meeting the strict requirements of heavy load and repeated use. Common specifications include multiple levels such as 5 tons, 10 tons, and 15 tons, corresponding to different safe working loads. Users must choose specifications with sufficient safety margin based on the actual maximum load demand, and overloading is strictly prohibited.

Surface protection and safety warning

To cope with complex outdoor working conditions, the finished tiger head hook needs to undergo strict surface spraying treatment. This dense plastic film can effectively isolate moisture and corrosive media, preventing rust and wear. The prominent part of the hook body must be permanently stamped or laser engraved with its rated working load, material code, and production identification to ensure clear and traceable information.

Guidelines for Safe Use

When using a tiger head hook, it is important to ensure that the load is applied at the center of the hook cavity to avoid lateral forces. Before each use, carefully check whether the hook body has cracks or deformations, and whether the rotating parts are flexible. Once any damage or permanent deformation is found, it must be immediately scrapped and cannot be repaired for use.