Bad Soden, Germany,

Orientation for pilots

Dry ice blasting at the airport

Airport runways are marked with thousands of lights that serve as an orientation aid for pilots. These lights need to be cleaned on a regular basis in order to ensure that they shine brightly at all times. In the past, this was done manually in what was a rather laborious process. Today, it can be done using time-saving and efficient technology. Zurich Airport uses an ASCOJET dry ice blasting unit to clean the majority of its approximately 8,000 runway lights. This unit sits on a mobile structure on the vehicle, with the compressor towed behind as a trailer. In front of the vehicle is a front-mounted hydraulic structure fitted with a sensor and a jet nozzle. The sensor detects each light and triggers the dry ice jet as well as the movement of the front-mounted hydraulic structure, so the driver can simply keep on driving during the cleaning process. Thanks to the automatic system, the driver can perform the cleaning job on his own.