Kaishan USA | July 12, 2018 | Rotary Air Compressors
Manufacturers typically classify compressors into two types: rotary screw and reciprocating/piston. Both serve the same purpose in pressurizing air for industrial use but differ in the mechanics of how they do it and, to a lesser extent, the specific applications they are best suited for.
While several reciprocating compressors are still in use today, they employ an older technology, which requires additional maintenance and does not perform as well at higher pressures. As a result, rotary screw models have largely replaced them as the compressor of choice for most heavy-duty applications.
Rotary screw compressors feature a pair of interlocking rotors in a sealed chamber. These rotors turn continuously during operation. Air enters the chamber through an inlet valve and, as it does, suction forces it into the space between the rotors. Here, the rotating screw mechanism reduces the volume of the air and ejects it when it reaches a specified pressure.
To deliver the appropriate pressure and volume of air, compressor rotors must be manufactured to tight tolerances and machines must be capable of maintaining carefully controlled operating speeds. However, when a well-designed rotary screw compressor is sized appropriately for the task, it is one of the most efficient options on the market today.
One of the main benefits of using a rotary screw compressor is that they have a 100-percent duty cycle. In other words, unlike reciprocating models, which overheat when they run for too long, screw compressors can operate continuously. As a screw compressor incurs less wear and tear, it delivers a longer service life with fewer maintenance requirements.
As a result, rotary screw compressors offer excellent value for heavy-duty industrial applications. Typical users include manufacturing facilities, autobody, and auto repair shops, where production may require the continual use of multiple air tools at once, and oil and gas plants, which often need highly pressurized air for various processes.
Rotary screw air compressors range in size and capability. The simplest models feature a single screw, though most commercial-grade units feature two or more. The main factors to consider when assessing a rotary screw compressor include:
Kaishan Compressor manufactures a wide range of rotary screw compressors for virtually any application. Explore our inventory by browsing our website, or contact a representative directly for assistance.
Manufacturers typically classify compressors into two types: rotary screw and reciprocating/piston.
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