A spiral bar coater is a type of coating equipment used in the printing industry to apply an even and controlled layer of coating material onto a substrate. It consists of a cylindrical bar with a spiral-shaped groove that holds the coating material, such as ink, varnish or adhesive. Spiral bar coaters are commonly used in various printing applications, such as flexographic printing, gravure printing, coating applications in packaging, and more. Read more:- https://theoctagonsolutions.co....m/product/bar-coater