Which Boom Gate Do I Really Need?

A Simple Guide to Key Automation Boom Barrier Systems & Accessories

If you’re securing a driveway, car park or commercial site entrance, choosing the right boom gate doesn’t have to be confusing. Key Automation’s ALT series of boom barriers are designed for intensive use - robust, reliable and engineered for both private and public applications.

Let’s walk through your options, how to pick the right boom gate for your opening, and which accessories will take your installation from good to great.

1. Choosing the Right Boom Gate for Your Access Point

Key Automation’s ALT barriers are available in several models — each suited to specific boom lengths and duty types. All include a 24 V DC motor, encoder for obstacle detection and integrated dual red/green LED lights.

It is important that you choose the Boom Gate based on the measurement of the boom arm length.  


 up to 3M 3 - 4M 6 - 8M 
Model ALT4324KF ALT424K ALT6K
Torque 40Nm 200nM 305nM 
Cycles/Hour 500 410 240/120
Opening Time at 90° 1 sec 3.5 sec 6/12 sec
Rated Power 30W 40W 40W
Maximum Input Power 60W 90W 100W
Dimensions (mm) 400 x 280 x 1188 320 x 220 x 1110 400 x 280 x1188
Weight 62 47 67

 

2. Must-Have Accessories — What Goes With What

Once you’ve chosen the right boom gate, the next step is equipping it with accessories that add safety, convenience, and control.

Here’s a breakdown of recommended add-ons and how they enhance each ALT barrier system:

Boom Arms & Profiles

These customise the physical barrier length and durability of your boom:

  • AST3F, ASTL4, ASTL6, ASTL8 Arms – Replaceable aluminium boom arms sized to match your gate opening.  These Boom Arms can be cut to your desired length. 

  • PROFT Rubber Boom Profiles (PROFT, PROFT6, PROFT8) – Flexible, protective profiles that provide visible delineation and protection on longer arms. These must be matched to the length of your boom arm.   

Boom Arm PROFT  KLIGHT  Outcome
AST3F Not Available Not Available Not Available
ASTL4

 

PROFT x 1

 

KLIGHT 4
ASTL6 PROFT6

KLIGHT 6
ASTL8

PROFT8

KLIGHT 8

 

 

Back to blog