Concentric Security semi-automatic bollards are designed for preventing high speed vehicular attacks. Our Model GS-05-B30-SA bollards are intended for infrequent use and are ideal for high security and low traffic or emergency only traffic applications.

These barriers are crash tested to Department of State specifications (STD 02.01) and have obtained a K8/L1 certification.

Each bollard consists of a rectangular cast in place frame which houses a retractable steel bollard, actuator, cylinder guides, and all other necessary hardware. There is a removable top plate to allow for on-site maintenance and removal of components or the complete assembly may be removed from the concrete.

Our semi-automatic bollards are designed with a key lock in the top plate which allows personnel to manually deploy or retract bollards.

All Concentric Security bollards come standard with a rust inhibitive epoxy coating and are available in a wide variety of standard colors.

Standard Features

Bollard Dimensions : 10” diameter x minimum 30” above grade Frame Dimensions : 14” x 25” x 46” deep Recommended Power Supply: None Required Mode of Operation : Key Lock, Manual Operation

More Information

For more information about semi-automatic bollards download one of the following documents: Specification (MS Word format, 22 KB) Drawing (PDF format, 418 KB)

Documents provided on this site may require additional software to be viewed. These applications can be downloaded from the following companies:
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