Self-climbing formwork
MAC
MEVA Schalungs-Systeme
MAC – short for MEVA Automatic Climbing – provides complete protection for workers with full cladding surrounding the external hanging platforms. Working space inside the external platforms is generous. No external trailing platforms are required on the MAC. This allows the contractor to follow closely with the slab construction.
Fully automatic hydraulics
The MAC system is supported by jacking and shear key beams inside the shafts. They sit on these beams and lift the whole system in one continuous operation. The MAC’s long-stroke, heavy-duty hydraulic system has a capacity of 20 tons per ram and a non-return ratchet that locks on each cylinder. The beams rest inside pockets set in the walls that were previously cast. Thus, the climbing load is carried by concrete that has already set: one of the system’s most conspicuous benefits in terms of safety and speed.
Adjusting in 3 directions: tolerance of only +/- 3 mm
Inside the MAC system an intermediary platform gives access to the 3-way adjustment devices. The latter gives the MAC system an extreme accuracy of +/- 3 mm. It also allows the system to be quickly plumbed and speeds up the stripping and setting-up process. The top of the ram rests against the beams of the main grid.
Shutters or panlised formwork systems
When a panel system is used such as the hand-set AluFix formwork panels or the heavy duty Mammut 350 system, the suspension connects directly to the main grid covering the whole system. Alternatively, MAC successfully works with shutters made from aluminium beams and plywood facing.
Shutters moved by hand, without force and without special tools
