Air compressors can be categorized in different ways, from their capacity to their pressure limits. However, on of the most popular way to categorized air compressors is based on their design and how they compress air. A fixed compressor can be impressive beast, but they are also comparatively large in size and heavy.
Since, compressors are available in a wide range of sizes and styles, choosing the right air compressor for you is really a matter of how it will be used and your personal choice. Lets find the answer of following stuffs before going any further:
- Where will you be using your compressor?
- Is there a ready electrical supply?
- Will you be working in confined or unventilated areas?
- Which tools will you want your compressor to operate?
Most air compressors have specific requirements for volume and pressure, while compressors are rated on the following four factors:
- PSI – Pounds per Square Inch: PSI is the unit of measurement that a compressor delivered. The higher the PSI, the further the air can be compressed – which means a larger volume of compressed air can be stored in the tank.
- SCFM – Standard Cubic Feet per Minute: SCFM, also known as CFM, is the volume of air that your compressor can pump in a minute a specific working pressure. Higher CRM ratings mean that the compressor can provide more air – making higher CFM units is more practical for larger applications.
- HP – Horsepower: Horsepower is the unit of measurement that a compressor motor produces. Higher horsepower engines means it produces greater PSI and capable of carrying a heavier workload.
- Tank Size: Compressor tank size are measured in gallons. Units with more powerful motors and larger tanks can generate higher levels of PSI for longer amounts of time which is able to provide greater power to your air tools.
Air compressors can be classified in two broad categories depending on the manner in which pressure energy is imparted to the air. These are: Positive Displacement Compresors and Roto-Dynamic Compressors. (more…)