--Main Characters of Shangair Middle & High pressure Air Compressor (General Use): 

• Shangair patent cylindrical direct-flow valve is used by our compressors. The valve is made from the stainless steel belt imported from Sweden and it is free from fracture during the working life.
• The piston of our air compressor aplies the integral cast chromium plating ring, the working life is extended by 3 to 4 times.
• Shangair’s unique compressor dymanic balancing technology. The vibration is only as a quarter of the world standard.
• The whole air compessor adopts rolling bearing without bearing shell (Comprising connecting rod).
• To ensure safety and reliability of air compressor, redundancy design principle is adopted and multiple protection measures are taken: such as overload protection; overheat protection; phase-failure protection; undervoltage protection; drainage while stop running; startup under the condition pressure is zero.
• High reliability, long maintenance cycle, very low oil consumption (oil-saving), low energy (power saving), these dramatically reduce the general operating cost of our air compressors.