HALO ORION® and GUARDIAN® Automatic Retractable Barrier Systems collapse along their length.

The GUARDIAN® Retractable Defensive Barrier (RDB) is a military grade, dynamic, maritime gate designed to survive the harshest marine environment. The GUARDIAN system can be connected to existing infrastructure or to other HALO products.

The GUARDIAN system features a modular design that provides simplified maintenance and repair. Minor part replacements are quick and easy. The accordion style structure allows automatic operation in constrained waterways. The double wall barrier with diamond shaped segments forms an impassible vertical wall in the water and naturally dissipates energy from the environment and impacts. The gate can be operated automatically, power-assisted, or manually.


GUARDIAN® Performance Specifications

Parameter SI ** USC **
Freeboard (height off water) 2.4 m 8 ft
Beam (width) 4.4 m 14.4 ft
Maximum Kinetic Energy Capability * > 6,779 kJ * > 5,000,000 ft-lbf
US NAVY Specified Threat Boats Stopped >99.99%
Post Impact Displacement 2.8 m 9.2 ft
Meets or Exceeds United States Navy Requirements
Structurally Intact Post Impact
Gate Operationally Intact Post Impact
Maintains Protection Against Followup Attacks

* maximum kinetic energy customizable to customer needs. Please contact us for details.
** International System of Units (Système international d'unités) and United States Customary Units

Designed to Perform

MIL-STD-810G Environmental Engineering Considerations and Lab. Tests

United States Military Standard that emphasizes tailoring an equipment's environmental design and test limits to the conditions that it will experience throughout its service life, and establishing chamber test methods that replicate the effects of environments on the equipment rather than imitating the environments themselves. The MIL-STD-810 test series are approved for use by all departments and agencies of the United States Department of Defense (DoD).*

GUARDIAN® Integrations

The GUARDIAN® RDB can be fully integrated with existing third-party port security barrier systems or other HALO® port security solutions.