The IFEX tunnel truck carries 2 x 12 or 2 x 15 litres impulse cannons. In addition, hose reel units with the one liter handheld IFEX impulse gun are mounted. The truck is provided with a 1000 litre water reservoir, motor driven water pump and air cylinders for powering of the impulse cannons and the impulse guns.

The cannons are equipped with a pan and tilt mechanism for shooting in all directions and are operated from the driver’s cabin. For accurate shooting the mechanism has a locking system that is activated upon triggering. In a tunnel fire situation, the trucks will enter the tunnel openings and shoot frequently to reduce the temperature, reach the site of the fire and extinguish. The Tunnel FireHunter is equipped with an inline foam injector for effective extinguishing of liquid fuel fires.