Lifting System with Sockets
Lifting sockets with flat end complies with the safety rules for transport anchors for precast concrete units. The lifting socket may only be used in combination with a lifting loop (angle smaller than 45°) or Special Lifting Device (angle larger than 45°). The insert features an internal thread, a flat end and cross hole. The reinforcement steel stirrup inserted through this cross hole takes over transmission of power into the unit.
Load bearing capacities and dimensions
|Reference||Thread RD||Load bearing capacities|
|0° - 45°||Lateral tension||D||h||e||f|
On lateral tension, lifting sockets with flat end have just the half load bearing capacity compared to axial tension.
Lifting sockets are manufactured of precision steel in special quality. They are also available in stainless steel. Sockets are electro-galvanized and manufactured with a Rd thread.
Lifting sockets with flat end must always be used with a steel re-bar as follows:
Diameter and dimensions of reinforcement stirrups
|[mm]||[mm]||Length of stirrup L|
Lengths of the stirrups are defined for a concrete strength of minimum 15 MPa.