Air Compressors - Air for Industrial Use

Air compressors come in all sizes and are used for many things. Compressors use electricity to pressurize air which is then used kinetically. Units compress air either with positive displacement or non positive displacement. There are several types of positive displacement compressors. Non positive displacement compressors use a centrifuge to accelerate then decelerate the air, which pressurizes it. Public use compressors are sold for pneumatic tools, filling tires, diving, and to aid in filing gas cylinders for the barbeque. Industry uses more compressed air than any other area of business. Compressed air is all around us, at the dentist, at the airport, and restaurants. 

Air compressors are used in many industries. The food service and pharmaceutical industries require oil free compressor because contact with food and drugs can occur. Mining uses pressurized air as do all kinds of manufacturing. Jet engines use compressed air to help start the engines. Compressed air is used to put gases into containers. It is used in artificial snowmaking and other many other areas. Air compression companies often have services in vacuum and blowers and water coolers. Specialized air compressors that have absorption, filtration, and refrigeration properties are also available.

The most common air compressors are positive displacement compressors. These function by forcing the air into a chamber by piston, screw, or vane. Piston compressors work by the pistons forcing air through a unidirectional valve. This allows air to be pressed in, but not out and the result is pressurized air. Rotary screw compressors allow air into the chamber as they turn. The entry of the screw into the tank decreases the volume of the tank, compressing the air inside it. Rotary vanes work much the same way only they use a single rotor that guides air into the compartment as it moves also decreasing the volume of the compartment.

Some industries need special compressors to accomplish their jobs. The food services need air compressors that are free of oil and other pollutants, as the air may come in contact with food. Other industries need their pressurized air to be decreased in humidity or to be cooled. Detailed models can get rid of extra moisture or heat so that these components of the air around us do not impede the work. Many sizes of compressors are available based on need. Some of the smallest compressors use only one kilowatt to fill their chambers. The largest may use up to 500 kilowatts to do the job.