Aerzener Maschinenfabrik builds new production hall / high-speed doors meet highest quality demands

They are like heart valves for logistics: doors. Critical spots as far as noise emission and thermal bridges are concerned. They are the interface between internal and external logistics. Doors make life pulsate in the industry. If they get stuck, they cause an infarct. The successful partnership between two companies doing business worldwide shows how doors meet highest quality demands and how they have contributed to the approval of a 65 million Euro project because they were installed in the right place. These two companies were Aerzener Maschinenfabrik and Efaflex, specialist for door and safety systems.

“Therefore, we have installed high-quality sound insulating materials everywhere, from the ceiling to the doors.” The planning team had searched for doors which are especially noise insulating. Bartels explains: “Because we had already fared very well with the high-speed doors of Efaflex in other areas of our works, we also rely on the partnership with the door specialist from Bruckberg for our new building.” “Utmost care with regard to consultation and the selection of the seven doors has resulted in tailored solutions for our project”.
By using these doors, the builder-owner has not only ensured best sound insulation but the planners have killed several birds with one stone:
“Our rotary blowers, compressors and gas metres are produced to the thousandth part of a millimetre. Even the slightest changes in temperature would already cause inaccuracies”, says Stephan Fahrenkamp, head of production planning. Therefore, the new production centre was fully air-conditioned and its temperature was constantly maintained at 22 degrees centigrade.
“Doors can also be unwelcome thermal bridges and can considerably affect the constant temperature within the hall”, he says. Bartels adds: “Five of the seven hall doors are spiral doors of the new SST generation. They have double-walled insulation laths which are thermally separated. By guaranteeing heat transfer coefficients of 0.8 W (m²K) for their entire surface, they even exceed the required heat insulation parameters.” Since they move with a speed of up to 2.5 m/sec, the loss of heat during opening and closing the doors could nearly be ignored. Lock-like solutions even intensified this effect. For constructional reasons, four of the doors were installed as low-header versions.