Instead of the procedure common up until now, in which the tubular columns had to be laboriously screwed together, re-usable pins are used in the RS 850 system. They can be simply inserted by hand and secured.
The placing boom can be set up in different ways:
Freestanding, on a ballastable cruciform base
Freestanding, on the compact cruciform base secured on the base plate with foundation anchor
Using a cruciform base, secured on a climbing framework
No cruciform base is required if a base plate and floor are present. The tubular column is held in place by four base plates and floor corner guides
Right side: Compact cruciform base secued with foundation achors.
Left: on a slip form, Top right: if there is already one floor, Bottom right: Ballasted cruciform base