HOT DIP COATING DEVICE AND METHOD

The invention relates to a hot dip coating device to provide a metal coating on a moving metal sheet, containing a liquid bath of metal coating material in use, wherein the metal coating material is to be provided on the moving metal sheet in use, comprising a container for the liquid bath, at least a guide or sink roll that is provided in the container below surface level of the liquid bath in use to guide the moving metal sheet through the bath, and a gas knife that is provided above the liquid bath in use, said gas knife having an outlet to project wiping gas on the metal coating provided on the metal sheet that in use passes along the gas knife, and wherein at least one supporting roll is provided which together with the guide or sink roll in use influence a shape of the metal sheet inits width direction at least at the location of the gas knife. According to the invention, in use the at least one supporting roll is placed above surface level of the liquid bath on a position enabling it to operate on the