Rear cooler for cooling of liquids or for condensing of steam with air. Drycooler consist of the heat exchanger and the fan frame. The heat exchanger are horizontal ,vertical or in A-shape configurated. Depending on the application the fans are forced draft or induced draft configurated. The heat exchanger is executed in steel or steel galvanized. The fan frame is a welded and screwed construction an also executed in steel galvanized. Our range of service includes the strength calculation of the heat exchanger an the fan frame up to the installation and start up of the air cooler.