Closed body turnbuckle مهارکش لوله ای is a rare type of turnbuckle that is used less often in industrial applications. Closed body turnbuckle is shaped like a closed cylinder and the anchors are placed inside. in order to produce the body of closed body turnbuckles the hot forging is the most common method. two nut shaped ends are designed also at both ends of the body for the anchors to be attached. there are different shapes of anchors with eye end, socket end and hook end for various types of wire rope slings with different rigging.
depending on the tension and the environmental condition different materials are used to shape closed body turnbuckles.