Defender K4 Certified Bollards

Strengthen perimeter security with crash rated bollards capable of stopping a 15,000 lb truck traveling at 30 mph

Defender anti-ram security bollard

Ameristar's Defender anti-ram security bollards combine an open, aesthetic appearance with the highest level of perimeter control.


  • Low operating & maintenance costs
  • Ideal for securing large perimeter entrances
  • Available in a variety of operating sets & formations
  • Flush with the roadway when retracted
K4 Crash Test Certified

The Defender security bollard is K4 certified by the U.S. Department of State, meaning it's capable of stopping a 15,000 lb medium-duty truck traveling at 30 mph.

The Defender bollards are made of retractable, 10 3/4" diameter, round tubular columns with a full guard height of 30".


The Defender anti-ram retractable bollards, available in automatic, are excellent for sites where the pathway access changes often.

When retracted, the Defender security bollards are flush with the roadway and provide free movement of pedestrians and vehicle traffic.

Utilizing the highest cycle duties available, the Defender automatic hydraulic rising bollards are an economical and effective way of securing any access point.


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  • Freedom C2 | ACPCS

  • Bollard Finish

    • Custom powder coated finish available on request.
    • Reflective banding options available as needed.
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  • Optional Add-ons

    • Main operator control panel
    • Remote operator control panel
    • Barrier-up position sensor
    • 5 HP Hydraulic Power Unit
    • Hydraulic oil heater/cooler
    • Emergency Fast Operate (EFO)
    • Dual channel vehicle detector module
    • Traffic signal lights
    • Custom painted finish or Decorative sleeve
    • Reflective banding
    • Battery backup
    • Touch screen controls
    • Integrated traffic arm or sliding gate
    • PC Based Controls

    Electrical Power Voltage Options:

    • 120 VAC / 60HZ / Single Phase
    • 208-240 VAC / 60HZ / 3 Phase
    • 415-480 VAC/ 60HA / 3 Phase
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