The Dynaco S-559 Atex Category 2* All Weather high speed door is built for outside usage in explosion sensitive environments. Its structure and all metal parts are made out of stainless steel. All non-metallic parts are made of antistatic or electrical conductive materials.
Together with a standard earth kit, this specific door construction avoids the build up of static electricity that could generate sparks. Therefore this high speed door is officially approved by Apragaz, an official inspection authority for equipment used in potentially explosive atmospheres.