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An air compressor is a tool that forces air into a storage tank, thereby increasing the stored pressure that serves as an energy source for a wide range of applications. While these important devices share common features like compressor motors, there are several different types of air compressors in regular use today. Here’s a closer look at three of them.

A Guide to the Most Common Air Compressors

1. Reciprocating

A reciprocating air compressor increases air pressure by reducing its volume. The compressor motor contains a piston powered by a crankshaft that delivers higher and higher air pressure.

There are two kinds of reciprocating air compressors: single-acting models, which employ only one side of the piston, and double-acting models, which utilize both sides of the piston. Reciprocating compressors are often used to power smaller pneumatic tools like drills, nail guns, and sanders.

2. Rotary Screw

compressor motorIn a rotary screw air compressor, the compressor motor traps air between two rotors and decreases the volume of the trapped air as it moves down the rotors. The compressor contains no valves, and it’s cooled by oil.

Rotary screw models are well suited to large industrial settings that require dependable access to pressurized air. They’re also found in work environments that routinely use high-power pneumatic tools like impact wrenches, jackhammers, and sandblasters.

3. Centrifugal

A centrifugal air compressor transfers energy from a rotating impeller. The compressor motor accelerates a gas from the center of the impeller and converts the energy produced into increasing pressure via an outlet called a diffuser. Airflow is continuous, so centrifugal compressors are most appropriate for high-capacity equipment and settings, such as manufacturing plants.

 

No matter what type of air compressor you have, keeping it in peak operating condition will ensure its smooth and dependable function. Parts Engineering Company offers aftermarket and original-equipment air compressor motors and parts, including air filters and lubricants; they also provide round-the-clock service. They have two locations to better serve you: one in Maryland Heights, MO, which serves the St. Louis area, and one in Central Florida. Call (877) 797-7326 or visit them online to order parts or to schedule compressor service.

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