E-mail: info@dohmeyer.com INFO: +32 9 2415222
E-mail: info@dohmeyer.com INFO: +32 9 2415222

Linear Tunnel - Top Lifting

For continuous cooling or freezing.


Cryogenic tunnels use liquefied carbon dioxide (LCO2) or liquefied nitrogen (LIN) for continuous cooling and freezing. A conveyor belt moves the product along the tunnel. Controlled injection of a cryogenic liquefied gas that immediately evaporates lowers the temperature in the tunnel. The latent heat of evaporation is the main source of cooling energy. Turbulence fans spread the gas in the tunnel in a controlled way and efficiently transfer the cold to the product’s surface. Exhaust fans extract the residual gases.


Cryogenic tunnels are used for many applications. You can process any flow of product that must be continuously cooled, frozen, or crustfrozen. The main applications are in the food industry.


Although Dohmeyer’s cryogenic tunnels exist in standard dimensions, it is possible to design tailor made tunnels that suit the specific needs of any individual application. Dohmeyer’s tunnels have 140 mm thick, high performance, thermal insulation.


Ask for our technical leaflet.

Dohmeyer top lifting tunnel

24h Technical help line:
Tel. +32 2 7877132

Dohmeyer Poland

Wojska Polskiego 3
39-300 Mielec, Poland
Tel. +48 17 788 98 18
Fax. +48 17 788 98 17

Dohmeyer Belgium

Kerkstraat 108
9050 Gent, Belgium
Tel. +32 9 2415222
Fax. +32 9 2205035