High Pressure Air Compressor
High pressure air compressors serve a wide range of purposes in industrial, manufacturing and other applications. Our company has been manufacturing both low and high pressure machines for many years. On this page, you’ll find a basic overview of high pressure air compressor technology, as well as some advice on what to look for when shopping for a unit.
What Is Pressure?
Pressure is the amount of force produced by an air compressor, relative to the surrounding atmosphere. For most commercial or industrial applications, it is measured in pounds per square inch gauge (PSIG). You may also see it rated in bar, or bar(g), the metric equivalent of PSIG.
Any machine delivering more than 150 PSIG is generally considered to be a high pressure air compressor. Most handhold tools are rated at 90 PSIG, meaning a standard pressure machine can easily power them.
Compressor Types
Reciprocating and rotary screw compressors are the two main types of compressor design. Rotary screw compressors are best for continuous use, but generally aren’t capable of delivering pressures above 210 PSIG. Reciprocating/piston compressors, on the other hand, can operate at working pressures of 500 PSIG and higher, but are designed for intermittent use only.
Pressure vs. Capacity
One common point of confusion when shopping for a high pressure screw air compressor is the difference between pressure and capacity. Capacity is a separate measurement describing the amount of air a compressor can produce at a given time. We measure this in cubic feet per minute (CFM).
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