Cholla Passive Barrier

The Cholla High Security Door System is designed to replace existing magnetically locked fire/metal security doors with a minimum of modifications and engineering to the existing facility. The Cholla incorporates a set of Mandall “Monster Magnetic Locks” which operate with the same voltage and current requirements as standard commercial magnetic door locks.

This door offers the simplest and most cost effective solution for the upgrading of physical security, while still retaining all existing fire and life safety requirements.

Core Benefits

  • Developed to defeat the “Dedicated Adversary”
  • Twelve years of advanced development testing and construction
  • Slip in retrofit without the removal of existing door frames
  • No re-engineering or seismic studies required for installation
  • Higher security solution engineered to exceed surrounding wall by a minimum factor of 1.5X
  • Torch and tool resistant internal barrier system
  • Meets Mandall Test Standard: MA-2002-241-5


Standard Equipment:

  • Multi-layered composite construction
  • Blister stand-off
  • Blast re-lockers
  • Full torch and hand tool resistance
  • Massive frame work construction
  • Two “Monster Magnetic” locking system
  • Exterior paint and coatings
  • Slip in retrofit framework
  • Door size 3’0” x 7’-0”
  • Meets emergency egress requirements


  • Blast absorbent matrix fill
  • Fire rating equivalency
  • Powder coat finish
  • Unlimited door sizes