pvd coating machine is currently the most widely used equipment for coating products under vacuum conditions. A complete pvd coating machine consists of multi-part systems, each system completes different functions to achieve the final high-quality coating. Its composition includes vacuum chamber, vacuum test system, vacuum pumping system, film formation control system, oil diffusion pump, roots pump, condensate pump, mechanical pump, etc.

      The main body of the pvd coating machine is a vacuum chamber. The size of the vacuum chamber is determined by the processed product, and its size can be customized. The chamber is generally made of stainless steel, which is required to be strong and durable without rusting. The vacuum chamber has many connection valves for connecting various auxiliary pumps.
      The vacuum pumping system is composed of mechanical pump + diffusion pump + Roots pump. The vacuum pumping system is an important part of the vacuum system of the coating machine. The level of vacuum directly affects the coating effect of the product. The vacuum level is obtained from the vacuum test system.
      The film formation control system can use different methods, such as fixed plating time, visual inspection, extreme value monitoring, crystal oscillation monitoring, etc. Coating methods are also divided into a variety of processes, commonly used ion evaporation coating and magnetron sputtering coating. The film formed by magnetron sputtering has strong adhesion and high purity, and can be used to sputter a variety of materials with different compositions. Ion evaporation coating can improve the compactness, bonding force and uniformity of the film.
      pvd coating machine is usually customized according to the actual product process requirements, and the cost ranges from hundreds of thousands to tens of millions. Machines and equipment that use manual operation are relatively cheap, generally around one million. The cost of machines and equipment that can achieve complete automation with high technical content will be several times higher. Well-known domestic enterprises can achieve semi-automatic operations, and a few with strong technology can fully automated