What is Retractable Bollard?

• A post that is put in the middle or at the end of a road to keep vehicles off or out of a particular area which is going down and raising up.
• High Security Bollards, Crash Tested Bollards are mostly used to protect the places for suicide bomb attacks by vehicles.
• Hydraulic Bollards, Pneumatic Bollards, Automatic Bollards, Semi-Automatic Bollards, Collapsible Bollards, Removable Bollards are also used to controlled entry/exit at the gates.
• Retractable Bollards are used for vehicle entrances, army, industrial, governmental and commercial buildings or streets that are closed to vehicle traffic between certain hours of the day.
• Some companies achieved Crash Test Certificate from accredited laboratories like PAS:68, DOS K-12, ASTM F 2656, IWA 14-1.

What is Retractable Bollard made of?

• Road Bollards are made from heavy strong steel, hot dip galvanised and different colour options.
• Stainless steel bollards are also very common because of elegant appearance.
• Stainless steel crash rated bollards have a carbon steel core inside the stainless steel sleeves.
• The bollards steel are usually hollow sections.

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How does an Automatic Bollard seem?

• Bollards seem like a steel post stands on the ground which is going to underground if you want to open the way.
• They are usually circle section like a steel pipe.
• It is possible to mount LED Lights or Flashing Lights or Reflective Stickers top of the bollards to recognise the bollards at nights.

How is a bollard installation?

• It is installed in a reinforcement concrete pit.
• Hydraulic power unit is installed separately from bollard which is connected with hydraulic hoses. Some hydraulic or electromechanics bollard model have own control unit inside the bollard.
• Bollards can be installed alone but they are often installed in a group.

For more information, visit Optima Engineering

How does a Retractable Bollard work?

• Hydraulic operated bollards have a push button console which is placed to operate it. It is enough to push UP button once to raise it or DOWN button to lower it.
• Semi-Automatic Bollards are going to under ground with man power like pushing it down. Raising is with help of gas piston automatically.
• Removable bollards allow you to take out it for passage. After passage you can placed it then you can locked it.