Tightly spaced high speed doors in airlock pharmaceutical project
3M Pharmaceuticals in north western Sydney, required high speed roll doors on either side of critical airlocks. The design issue was that the 12 airlocks were built in a line, and were closely spaced with a little over 300mm space available in between. This is not normally enough to fit adjacent high speed roll doors. But DMF were able to solve this by repositioning the motor above the roller assemblies.
The airlock was purposed to retain up to 25Pa of air pressure, of which the DMF RL3000 doors could hold with minimal air loss. The doors either side of the airlock required to be electrically interlocked to prevent both doors on either side of the airlock being opened at the same time.
The next design challenge was the activation was required to be by remote control, and so purpose designed multi frequency remotes were made by DMF. This allowed only one respective door at a time to be activated, as determined by the operator.
All of the high speed roll doors come with a variety of safety mechanisms. For the 3M project, the doors are fitted with inline photo electric light beams within the doorway, a touch sensitive bottom beam, and safety motion sensors guarding the vicinity of the door way. Each of these sensors work to quickly return the door to the open position if any obstruction or movement occurs within or near the doorway during the closing cycle of the door. DMF manufactured these specialised doors in their Sydney based factory, employing over 20 staff in various roles.