Grille doors have large diameter steel bars. The 800 S doors have opening and closing times of 5.5 to 15.5 seconds depending on door width. The fast cycle time also reduces heat loss. Safe operation is always important. The Q-Fold 800 S pneumatic safety edges will instantly reverse the door to the open position when the leading edge contacts an obstruction.
Dependability is the watchword for any public safety installation.
The Q-Fold 800 S will deliver years of dependable service. The heart of the 800 S is the opener. Built to withstand the rigors of high cycle operation. These trouble free operators require no floor space or extended hydraulic plumbing. They fit unobtrusively above the door opening, protected from unauthorized access.