Compact Equipment

SEP 2018

Compact Equipment is a magazine dedicated to equipment owners and operators of small, nimble, tool-carrying construction, landscape and ag equipment — such as skid steers, mini excavators, compact tractors, generators compressors and beyond.

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Page 47 of 55

And Where There Are Air Tools, There Are Diesel Air Compressors By Navendu Sharma W hen working with pneumatic tools, a diesel air compressor is an essential part of the equation. Pneumatic tools are driven by compressed air, which is why it is important to ensure the com- pressor you select is right-sized. A diesel por- table air compressor is practical for heavy-duty applications such as operating pneumatic tools and other construction equipment. When considering what size compressor to use, check the rated pressure — the pound-force per square inch gauge (psig) rating — of the air compressor to determine the right size for your specific needs. Most of the pneumatic tools operate well at 90 psig. Pressure drop through the connecting hose size should be considered as well. With an expected 2-psig pressure loss in a 50-ft, 3/4- in. hose, a 10-psig pressure drop through a 250-ft hose may not allow a pneumatic hammer to work properly. Pneumatic tools require a volume of compressed air — or cubic feet per minute (cfm) — at the pressure known as psig. Cfm can help you determine the number of tools you can operate with the air compressor and how much power the air compressor can provide. Each air tool is designated a cfm requirement by the manufacturer to help ensure efficient and optimal operation. To protect the compressor, only about 70 percent of its rated free air capacity should be used in gunite applications using tools such as pavement breakers, tampers, rock drills, chip- ping hammers and utility drills. Ensure your air compressor can adequately support demanding tools to minimize any possible downtime. T H E P O W E R O F H A N D T O O L S AIR TOOLS 48 Compact Equipment SEPTEMBER 2018 Most pneumatic tools operate well at 90 psig.

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