Leigh Gordon Air Compressor September 09th, 2018 - 07:01:16
An oil lubed pump has a longer life with less wear than an oil free air compressor. These also come in various sizes and are great for home use.
Armed with a bit of information, and knowing my husband and how he will use his compressor, I was soon on my way to purchasing the right Powermate Coleman air compressor for him for Christmas. I hope this information will help you too!
Air output of a compressor is expressed in standard cubic feet per minute (SCFM) or just cubic feet per minute (CFM). Not all 5 HP compressors put out the same volume of air per minute. This is a function not only of motor horsepower but also the efficiency of the air compressor pump the motor is powering. The higher the CFM, the less your air compressor will have to cycle on and off to keep up with the demands you are putting on it. A small compressor pump on a huge tank will produce no more air than on a small tank. The only difference will be in the number of times the compressor cycles on an off each hour and the time it takes to recompress the tank on each cycle. In the final analysis, you need to pay attention to SCFM (or CFM) more than you do motor horsepower or tank size. Air flow is the end product of any compressor and the CFM must be sufficient to the job at hand.
And, often times, these compressors end up blowing more car fuses than they do blowing up flat tires. The VIAIR 90P Portable Compressor, however, avoids these kinds of mishaps by drawing power directly from your car’s battery. It uses heavy duty alligator clips, like those on your jumper cables, to hook up easily to the battery for power to this compressor, no matter where you are.
I recommend that you buy a compressor with an air tank. It produces constant air flow, unlike the diaphragm model, which creates pulsation. You have to choose as large as possible reservoir tank. It provides constant, smooth air flow.
I found a nice air powered air gun at a local hardware store. At first it seemed just perfect. I was about to buy it when I noticed on the little description card that it was not recommended to be used with a compressor smaller than 6 gallons. Dang! The portable air compressor I had was only a small 2 gallon pancake compressor. That just wouldn't cut it. I had to buy a larger unit so that I could get the gun, so that I could finish the house project. See how this goes.