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https://www.nailicomp.com/naili-sun-series-energy-saving-type-rotary-vane-compressor/naili-sun-series-energy-saving-(low-speed)-rotary-vane-compressor.html          
 
Energy Efficient Air Compressor
Variable Speed Drive Air Compressors                Use an intelligent drive system to continually vary the motor speed to meet air demand. The drive controls the speed (RPM) of the unit based on demand, fluctuating to perfectly match the amount of power output required. When demand slows, the compressed air system reduces the motor speed, which reduces power consumption.     
 
Features :
Low speed; 1000rpm has just 1/3 rpm to compare with normal compressors;
 
Frequency controller with PM motor to saving more energy;
Low maintaining cost
Automatic flow rate control
Compact compressing unit
Control panel
Energy consumption
Air quality
Straight connection
Durable
Fan power
Reliability
Low Noise level

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