FAQs About Air Compressors
Trust the United Rentals fleet of air compressors to meet the needs of your project. Our air compressors for rent offer a variety of CFM (cubic feet per minute) and PSI (pounds per square inch) ratings, sizes and power types, including gas, diesel and electric options. Larger air compressors in the 1,600 to 1,800 CFM range are ideal for industrial, construction and mining applications, while smaller, portable air compressors in the 3-5 CFM range or 5-7 CFM range are ideal for compact jobsites such as homes and gardens. With several towable models built to endure the rigors of construction or industrial jobsites, these compressors are convenient options when air is needed for inflating, clearing, cleaning or powering tools.
To learn more about air compressors and determine what size is best for your needs, check out our informative Project Uptime article, What Is an Air Compressor and How Does an Air Compressor Work?
The amount of PSI needed for air tools depends on whether the air compressor is portable or stationary as well as the size of the air tool. On average, air tools used with portable air compressors typically require 0 to 5 cubic feet per minute (CFM) at 70 to 90 pound force per square inch (PSI), and tools connected to stationary air compressor systems typically exceed 10 CFM at 100 to 120 PSI. Learn more about air compressor sizing in this Project Uptime Article: What Size Air Compressor Do I Need?
Motor oil has a specific weight for designated uses. Only use the oil the manufacturer recommends for that compressor. Each pneumatic air tool has its own CFM requirement that can be found in the owner’s manual.
It depends on the type of air compressor you have. For rotary air compressors, you should change the oil every 7,000 to 8,000 hours. Reciprocating air compressors requires an oil change every three months.
Air Compressors in Action
