Industrial facilities use compressed air for a multitude of operations. Almost every industrial facility has at least two compressors, and in a medium-sized plant there may be hundreds of different uses of compressed air.

Uses include powering pneumatic tools, packaging and automation equipment and conveyors. Pneumatic tools tend to be smaller, lighter and more maneuverable than electric motor-driven tools. They also deliver smooth power and are not damaged by overloading. Air-powered tools have the capability for infinitely variable speed and torque control, and can reach a desired speed and torque very quickly. In addition, they are often selected for safety reasons because they do not produce sparks and have low heat build-up. Although they have many advantages, pneumatic tools are generally much less energy-efficient than electric tools. Many manufacturing industries also use compressed air and gas for combustion and process operations such as oxidation, fractionation, cryogenics, refrigeration, filtration, dehydration and aeration. Table 1: Industrial sector uses of compressed air lists some major manufacturing industries and the tools, conveying and process operations requiring compressed air. For some of these applications, however, other sources of power may be more cost-effective.

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Compressed air also plays a vital role in many non-manufacturing sectors, including the transportation, construction, mining, agriculture, recreation and service industries. Examples of some of these applications are shown in Table 2: Non-manufacturing sector uses of compressed air.

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Table 1: Industrial sector uses of compressed air Industry Example Compressed Air Uses Apparel Conveying, clamping, tool powering, controls and actuators, automated equipment Automotive Tool powering, stamping, controls and actuators, forming, conveying Chemicals Conveying, controls and actuators Food Dehydration, bottling, controls and actuators, conveying, spraying coatings, cleaning, vacuum packing Furniture Air piston powering, tool powering and cleaning, controls and actuators General manufacturing Clamping, stamping, tool powering and cleaning, controls and actuators Lumber and wood Sawing, hoisting, clamping, pressure treatment, controls and actuators Metals fabrication Assembly station powering, tool powering, controls and actuators, injection molding, spraying Petroleum Process gas compressing, controls and actuators Primary metals Vacuum melting, controls and actuators, hoisting Pulp and paper Conveying, controls and actuators Rubber and Plastics Tool powering, clamping, controls and actuators, glass blowing and molding, cooling Stone, Clay and Glass Conveying, blending, mixing, controls and actuators, glass blowing and molding, cooling Textiles Agitating liquids, clamping, conveying, automated equipment, controls and actuators, loom jet weaving, spinning, texturizing Table 2: Non-manufacturing sector uses of compressed air Industry Example Compressed Air Uses Agriculture Farm equipment, materials handling, spraying of crops, dairy machines Mining Pneumatic tools, hoists, pumps, controls and actuators Power generation Starting gas turbines, automatic control, emissions controls Recreation Amusement parks – air brakes Golf courses – seeding, fertilizing, sprinkler systems Hotels – elevators, sewage disposal Ski resorts – snow making Theaters – projector cleaning Underwater exploration – air tanks Service industries Pneumatic tools, hoists, air brake systems, garment pressing machines, hospital respiration systems, climate control Transportation Pneumatic tools, hoists, air brake systems Wastewater treatment Vacuum filters, conveying

Based on the tables above, which are only a snapshot into the many uses of compressed air, it is often easier to identify applications or situations that do not use compressed air than those that do use compressed air. Contact your local compressed air expert to learn if an air compressor is right for your facility.

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