OKal Bollards

Robotech Pty Ltd is an authorised OKal Sentry Bollards agent. OKal Sentry Bollards are made in South Australia and are patented.

OKal Sentry Bollards can provide solutions to your vehicle access, parking control, Ram Raiding, Car Thieves, Hoodlum Drivers and other traffic control problems.

OKal Sentry Bollards have a range to suit all types of traffic control.


  • Pivoted Sentry Bollard To end “Parking Bay “ poaching.
  • Lock-in Sentry This is a car port theft deterrent.
  • Flexi Sentry A removable plasticised rubber bollard for positive highway lane-change delineation.
  • Retractable Sentry This bollard comes in three sizes:- 470mm, 650mm or 800mm,and is designed for “RAM RAID” protection.
  • Automatic Sentry This is an automatic sentry that can be powered by air or water. It can be controlled by Rf transmitter, Swipe card or logic controller.

Robotech Pty Ltd can arrange for installation or you can install the range of OKal Sentry Bollards your self.

For more information you can download the following brochures, available in pdf format. To view you must have the adobe acrobat reader installed on your computer. To download the reader click here.

Protect your Car from Car Theft.

Protect your Property from Damage and Ram Raids.


Retractable Locked Up Sentry Bollard Retractable Locking Down Sentry Bollard

Retractable Lock Up/Lock Down Sentry. Tough steel bollard with 3 to 4 tonne force resistance locks 'up' during hoodlum driving hours and locks 'down' flush with pavement surface during operating hours.Easily operated by heavy duty clutch tool.