The lifting beam, hooked to the building yard crane, is needed for the lifting and erection of the concrete elements.
The extension of the telescopic arms is done manually.
It consists of the following:
- Fixed main beam;
- Telescopic beams with clamp supports adjustable over the length of the beam;
- Pair of clamps with opening and closing mechanism complete with safety chains.
- The extension of the telescopic arms is done manually.