The Oil-free air compressor is widely used in dentistry, aquaculture, food, medicine, health and fitnessfacilities, chemical industry, scientific industry, etc. It also can be used as a vacuum pump. The motor features an advanced design for high power, efficiency, and reliability with low energy consumption, while the eco-friendly piston ring uses self-lubricating materials that eliminate the need for oil and prevent secondary air pollution. The jacket undergoes a surface hardening treatment to reduce thickness and friction, enhancing heat transfer, surface density, and wear resistance, which extends service life and reduces maintenance costs. High-quality Swedish steel intake and discharge valves are finely processed, improving volume efficiency and lowering noise. Additionally, the machine is equipped with multiple pressure and overload protections to ensure stable, reliable operation.