Qingdao Haosail Machinery Co., Ltd.

In lifting and rigging operations, safety hooks are widely used to connect chains, wire ropes, and slings to loads. While the hook body carries the main load, the latch (also called the safety tongue) plays a crucial supporting role. Its function is to prevent accidental disengagement of the lifting component, reducing the risk of load release during handling.

Although the latch itself is not designed as a load-bearing part, its structural design and manufacturing method directly affect durability, safety, and service life. In the market, two main types of latches are commonly used on safety hooks: stamped latches and cast latches.

Stamped latch:

A stamped latch is produced by pressing and forming steel plate through a cold stamping process. The material is cut and shaped using dies, resulting in a lightweight and flexible component. Because this method allows high production efficiency and stable dimensional consistency, stamped latches are widely used in standard-duty lifting hooks. They are economical, easy to replace, and suitable for general lifting applications such as G80 clevis hooks, eye hooks, and grab hooks. For operations where cost control and routine use are priorities, stamped latches offer a practical and reliable solution.

Cast latch:

In contrast, a cast latch is manufactured by pouring molten steel into a mold and allowing it to solidify into shape. This process creates a thicker and more robust structure. Compared with stamped versions, cast latches are typically heavier and provide greater resistance to impact, bending, and deformation. They are commonly used on heavy-duty G80 or G100 safety hooks, offshore lifting equipment, and high-capacity crane hooks. In demanding environments where lifting conditions are harsh and safety margins must be higher, cast latches provide enhanced durability and long-term performance.

When comparing the two types, the key differences lie in manufacturing process, weight, strength, cost, and application range. Stamped latches are lighter and more economical, making them ideal for general-purpose lifting. Cast latches, while more expensive, deliver higher structural strength and are better suited for heavy-duty or industrial lifting scenarios.

It is important to remember that the latch functions as a retaining device rather than a primary load-bearing element. Operators should always inspect the latch before use to ensure it closes completely and shows no signs of cracks, deformation, or spring failure. Any damaged latch should be replaced immediately to maintain safe working conditions.

About us:

As a professional manufacturer in the lifting and rigging industry, Qingdao Haosail Machinery Co., Ltd. specializes in the production of G80 and G100 safety hooks, chain fittings, and forged lifting components. Qingdao Haosail offers both stamped and cast latch options to meet different application requirements and international standards. With strict quality control, advanced production technology, and a commitment to reliability, Qingdao Haosail provides safe and durable lifting solutions to customers worldwide.

Choosing the right latch type is not only about cost—it is about ensuring safety, performance, and long-term operational efficiency.