Heavy machinery is practically impossible to operate manually. Especially in big manufacturing companies, they invest in rather large equipment than smaller ones. These ensure that there are more products which are produced at a certain period of time. Using smaller equipment for mass production seems really pointless. The main energy sources that operate these machines are either gas powered or electric powered devices. Electricity, as you know it, can really be very expensive especially since machines run for 24 hours a day. This is why gas power, provided by air compressors, is used by most of these companies.
The industrial air compressor for sale is designed for these kinds of operations. Gas power is practically cheaper and more practical to use. Although the main concern of machine operators is the possibility of overheating. This is not really a problem anymore because most air compressors come with a built-in cooling equipment to maintain a lower temperature. One advantage of using an industrial air compressor is the smaller risk of actually breaking down during operation. Since these have been made to withstand long working hours, these can still run very effectively, providing an efficient energy source to the heavy machinery.