MANUFACTURERS OF steel and aluminium tubes and profiles use anti-corrosion coating processes to reduce spoilage and damage, but traditional in-line coating systems are noisy and messy. Universal Finishing Systems of Queensferry, UK, has overcome this problem with its new Twin Vac tube-coating machine. At its heart is a patented vacuum-coating system, which relies upon quiet-running vacuum pumps from Rietschle.With traditional in-line systems, tube is fed through a coating bath and excess material is removed by passing the tube through a felt collar, in a messy and wasteful process. To overcome these problems, Universal Finishing Systems' new process passes tubes and profiles through the machine at high production speeds, and a consistent, even, coating is achieved by the high-vacuum process, with precise control of the coating thickness. No special operator skills are required, and the process is 100 percent transfer efficient, which reduces coating costs to a minimum.
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