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The word "pneuma" comes from the Greek and means wind of breath. The pneumatic word is the study of the movement of the air and its phenomena are derived from the word pneuma. Today, pneumatics are mainly understood as the application of air as a means of working in industry, especially the driving and control of machines and equipment. Pneumatics has taken considerable time between used to carry out the simplest mechanical tasks in more recent times has played a more important role in the development of pneumatic technology for automation. Pneumatic systems operate with a supply of compressed air that must be available in sufficient quantity and at a pressure appropriate to the capacity of the system. When the pneumatic system is being adopted for the first time, however, it does need to address the issue of compressed air supply. The key part of any installation for the supply of compressed air is through the use of reciprocating compressors. A compressor is a machine that absorbs air, gas at a certain pressure and delivers air at high pressure. The capacity of the compressor is the actual amount of compressed air delivered and the volume expressed is that of the air under the conditions of admission, namely atmospheric pressure and normal ambient temperature. Air compressibility was first investigated by Robert Boyle in 1962 and he found that the product of pressure and volume of a certain amount of gas.