Modular moulds for elevator shafts

The assembly and the opening of the mold are performed manually, joining the number of necessary elements or modules in accordance with the dimensions of the frame to produce. Depending on the supplied set of formworks, it is possible to reach up to 7m in width (distance between the pillars of the box culvert). The same fixing system is used to add additional supplements to the outer mold. That allows adjusting the thickness of the precast box culverts.
The bases are assembled by screw-nut unions, while the inner and outer molds are assembled on these bases by bolt-wedge unions.
When demolding the piece, it is possible to remove the inner and the outer mold in four parts each, which implies that they don’t have to be totally disassembled and simplifies the production process for series of pieces with the same measures.
Spacing tubes with Dywidag rods and nuts are used as locking system in the upper part.
The formwork panels have sealing gasket to ensure the sealing of the mold. Like an option, the mold can count with special formwork panels to cast corbels for supporting slabs. It is usual to design the modular mold to cast the elevator shafts with male-female joints.