How To Choose the Right Air Compressors & Air Tools
Flow Rate (CFM)
- Determine the volume of air (CFM) that your project requires
- Size to the combined volume of air (CFM) demand of the tools you will run simultaneously, plus a buffer for peaks
- Larger applications may require air compressor rentals capable of delivering up to 1,800 CFM, while smaller projects may only require 333 CFM
Air Tool Count & Types
- List the air tools you’ll run at the same time and check each tool’s CFM requirements
- Choose a compressor with headroom to prevent pressure drops and keep productivity steady across the shift
- Confirm the key job requirements and site constraints up front so you can choose the safest, most efficient air tool
Power Source & Portability
- Choose electric air tools when power is accessible and noise and emissions matter, and choose gas or diesel for remote sites and longer runtime
- Consider how you will move your air tool rental between work areas to determine if you need a wheeled, towable or handheld unit
- Verify available power, including voltage, phase, amperage or fuel type, and plan run time, refueling, charging and cables as needed
FAQs About Air Compressors & Air Tools
United Rentals sources an effective selection of air compressors and air tools from top-tier manufacturers, with products ranging from whirlibits, dessicant air dryers, scaling chisels and socket adaptors. Air compressors are pneumatic tools that provide efficiency, economy and productivity. Smaller portable air compressors are ideal for compact jobsites. Air tools — drills and hammers for construction or demo jobs, along with general air tools — are designed to reduce air consumption without reducing power, so you can run multiple tools with just one compressor unit. Additionally, we offer air tool accessorries. Our inventory features air scraper chisel attachments, used for removing floor tiles or chipping concrete and grout, and air manifolds for diverting a single gas, air or liquid to multiple locations or devices.
Learn more about air compressors and air tools in our FAQ section below.
Like other types of equipment, it’s important to account for preventive care of air tools. In general, air tools should be regularly cleaned to clear oil buildup, dust, dirt or debris, and lubricated to guarantee the proper function of filter regulator lubricators. Follow the equipment manual instructions for lubricating processes. Additionally, ensure proper storage of tools to prevent exposure to harsh natural elements as well as environmental contaminants in work environments.
The efficiency of air tools, when compared to electric tools, is a matter of preference. Each has its advantages and disadvantages. Air tools tend to be lighter in weight and can be more energy efficient. They also tend to be faster and more powerful than electric tools. However, air tools cannot be cordless, requiring a constant electricity source to provide the airflow. To determine which is best for your job, consult with a United Rentals specialist.
To safely run an electric compressor on a generator, you'll need to match the generator size to the size of the air compressor you have. To choose the best generator for your needs, you’ll want to consider wattage, decibel rating and fuel source. Need more help? Contact one of our equipment experts for more guidance.