The Variable Speed Driver,usually short for VSD, is the hallmark of the compressed air field. Air compressors equipped with VSD are able to automatically adjust their operating speed to precisely match compressed air demand in real time. This is especially important when it comes to saving energy, considering that the biggest cost is the electricity it consumes, not the purchase price of the air compressor itself!
On average, energy saving for VSD compressor is 35% to 50%, depending on the size and type of application. Turn that percentage into an expense, and you can save a lot of money.