• Industrietor Rolltor
  • Industrietor Rolltor
  • Industrietor Rolltor
  • Industrietor Rolltor
  • Industrietor Rolltor
  • Industrietor Rolltor

High-speed spiral door EFA-SST® ATEX


Schnelllauf-Spiraltor EFA-SST® ATEX
  • Schnelllauf-Spiraltor EFA-SST® ATEX
  • Schnelllauf-Spiraltor EFA-SST® ATEX

Explosion-Proof Spiral Doors

EFA-SST® ATEX at a glance

  • For use in explosion protection zones 1, 2, 21 and 22
  • Highest wind load capacity
  • Up to 200,000 operating cycles p.a.
  • Suitable for external and internal applications
  • Opening up to 1.0 m/s
  • Closing up to 0.5 m/s
  • Standard sizes up to w=4,000mm x h=5,000mm

Additional information

The classic hall door for potentially explosive atmospheres

The EFA-SST® ATEX is excellently suited for both internal and external use. In addition to high operating speeds, it also offers a solid door blade with high wind resistance and optimal sealing. The standard door blade consists of double-walled aluminium laths, which can be supplemented all in or part with optional transparent laths. The door blade is guided by a spiral, without contact minimising wear.

The EFA-SST® ATEX has been developed in accordance with ATEX Directive 2014/34/EU specifically for use in potentially explosive atmospheres for Zone 1 (II 2G IIB T4 Gb), Zone 2 (II 3G IIB T4 Gc), Zone 21 (II 2D IIIB 135°C Db) and Zone 22 (II 3D IIIB 135°C Dc). The control cabinet must be installed outside the explosion protection zone.