Dohmeyer developed a range of large capacity freezers, known as the OptifreezeTM freezers. Optifreeze is the registered trade mark of Dohmeyer, representing a unique Spiral Freezer concept.

Cryogenic tunnels using liquefied carbon dioxide (LCO2) or liquefied nitrogen (LIN) with top lifting cover.

Making use of the most innovative air flow control, results in a tunnel freezer with doubled heat exhange.

The vacuum insulated snow horn, is a high efficient device making in situ dry ice snow in food applications and pharmaceutical applications.

Drum freezer for continuous freezing of free rolling products.

Cryogenic batch freezers use liquefied carbon dioxide (LCO2) or liquefied nitrogen (LIN) for discontinuous cooling and freezing. Controlled injection of the cryogenic gas lowers the temperature in the cabinet as the gas immediately evaporates. The latent heat of evaporation is the main source of cooling energy.

Cryogenic screw conveyors can be used in conjunction with both continuous and batch production systems.