11
IP ST
In these folding doors the sheet is balanced by a counterweight
that slides within the side rails.
Ideal for medium and large size openings and for outdoor
installation.
Especially suitable to resist wind thanks to tubular reinforcing rods
inserted in the sheet.
The counterweight system allows manual opening in case of power
failure, simply by acting on the handle that releases the exhaust
brake.
IP ST folding high speed doors