CO2 tank semi-trailers for transporting the liquid industrial gas CO2 (UN 2187) by road are built in duplex or carbon steel. The tanks are thermally insulated with polyurethane between the tank walls for optimal storage and transport of CO2.

CO2 can be transported in tank semi-trailers that can hold from 22,000 to 33,000 litres, depending on the total weight. The tanks are built with a simple and functional unloading system. They can be built with different measuring and pumping systems as required, such as a gear pump or centrifugal pump. The tanks must be driven with a partial load, as they are built with a splash bulkhead.