Material & Surface Treatment for Power Supply Metal Case
Power supply metal case protects internal transformers, circuit boards, and cooling systems. It must have good strength, heat dissipation, and insulation performance. Proper material and surface treatment can improve safety, stability, and service life of industrial power supplies.
Common materials include cold-rolled steel, galvanized steel, and aluminum alloy. Steel has high strength and low cost, suitable for high-power industrial power supplies. Aluminum alloy has better heat dissipation and lighter weight, ideal for compact switching power supplies.
Surface treatment is essential for corrosion resistance and insulation. Powder coating is the most widely used method, with good insulation, scratch resistance, and customizable colors. Electro-galvanizing and passivation are also used for small and compact power supply cases.
Structure design should consider heat dissipation, cable entry, and mounting structure. Ventilation holes should be arranged reasonably to avoid overheating. All sharp edges must be removed to ensure safe installation and use.
Enertech provides custom power supply metal case for various industrial power equipment. We support prototype making and mass production with stable quality.