Back in 1952, Gunnebo Industries launched the Coupling G-link. This invention changed the industry of lifting equipment. Prior to the G-link, the standard was to use all-welded chain slings, an expensive and time-consuming process as each and every chain sling ordered had to be assembled in the chain factory. With the G-link chain slings could be assembled in local sling shops closer to customers, creating more effective and flexible processes.
Besides a perfect design, the G-link is equipped with a special pin retention system. The pin has a recession in the middle where the locking bush holding a Helicoil shaped spring lies. The design of the pin, spring, and bush guarantees safe retention of the locking bush, in case the wire of the spring should break.