Semi-Automatic Bollard

Semi-Automatic bollard is suitable for higher security but low frequency access control system. Proceed from the economy, it is usually used together with automatic Bollard with the same appearance, it has higher security protective effect and avoid of complex High/Low Voltage construction. As the safety requirement increased, the bollard size becomes bigger, the air pressure assistant system of Semi-automatic Bollard of Delou will afford more load.

The decline process of Semi-automatic bollard is realized mainly by its own weight. When the top of cylinder arrives the ground level, the mechanical lock will lock if automatically, but the rise of Semi-Automatic bollard is realized 100% by the air pressure assistant system of Semi-automatic. After use the special key of Deloul to lose the lock, the cylinder will rise automatically to a certain level and locks automatically. There are various of pressure assistant system can depend on the main part and customers' special requirement.

The recommended Semi-Automatic bollard of Delou maximum install spacing is 1.4, the depth of excavation have to depend on the different specifications cylinder. For special needs please contact local dealers.

More sizes of cylinder for choosing

Higher security level

Affordable price

Easy and convenient operation

Without the High/Low voltage construction (except for lighting and other accessories)

Unified with other series of Deloul Bollard.