Frei AG manufactures side seam protection systems for welded three-piece cans, namely powder and liquid lacquer application units and curing systems to match the many different production speeds of various welding machines.

When developing the technology for the latest seam protection units Frei AG left no loose ends. The gas burner firing system will conform to the strictest legislations. In today's competitive market-place it makes a lot of sense in either economic or in ecological terms to choose a state-of-the-art curing unit with lowest exhaust values, low energy consumption and no need of cooling water.

Frei's curers certified CO concentration is less than 5 mg/m3 (4 ppm) and less  than 5 mg/m3 (2.5 ppm) for the NOx. These figures are valid for natural gas as well as for LPG.

Frei curing units are available in "Straight" and "U-shape" versions in various lengths ranging from 4 burners up to 48 burners, i.e. for welding speeds from 10 m/min up to 145 m/min