SIEPEL designs, manufactures and implements high-performance shielded doors for shielded rooms of all kinds: steel (modular, bolted, soltered), copper or architectural.

Many references are available:

  • Leaf door: simple or double-leaf
  • Three-leaf door with retractable threshold
  • Lateral motion sliding door
  • Sliding door
  • Automatic actuation: manually / electrically / pneumatically / hydraulically
  • Clear opening adapted to personnel and equipment


Thanks to its organization and experience, SIEPEL is able to manufacture dedicated models of doors according to specific needs. For instance, we have references for applications needing large dimensions doors to allow the access to military vehicles or aeronautic equipment.