Electric compressors pressurize and store air for use in pneumatic tools. They are versatile, producing no harmful fumes and can be used indoors and outdoors. Consumers should consider tank size and power specifications before purchasing. Larger tanks are recommended for longer use.
An electric compressor is a machine that pressurizes and stores air inside a tank for use in powering pneumatic tools, such as a nailer or impact wrench. This type of compressor is extremely versatile as it has the ability to be used indoors and outdoors as well as to power small and large tools. Consumers should consider tank size and power specifications before purchasing an electric air compressor, based on the intended use in the home.
Basic compressors use a motor to power an internal pump or piston to reduce the spatial volume of air within the tank. As a result, the air becomes more densely packed inside the tank. When connected to a pneumatic tool, the electric compressor will force pressurized air into the tool, creating mechanical motion. Each pneumatic tool is lightweight as it does not need to house a single motor, allowing the operator to use the tool longer with the power provided by the electric compressor.
Unlike gas compressors, an electric compressor does not produce harmful fumes. The lack of fumes makes this type of compressor compatible with use indoors, which is especially useful if the user lives in a colder region and needs to use tools indoors more often. Many electric air compressors run on basic wall outlet electricity, between 110 and 120 volts. The main disadvantage of a compressor powered by a wall outlet is the lower power output; these superchargers can only use a motor of 2 horsepower (HP) or less. As a result, wall-powered compressors are less useful for tools that require more power, such as a grinder.
The most powerful electric compressor motors, ranging from 3 to 10 HP, require direct connection to an electrical panel. These high-powered compressors use between 220 and 240 volts, producing enough mechanical strength to power heavy objects, such as a sander. The main disadvantage of this type of compressor is the physical electrical connection. Users will have limited movement of the compressor as it must remain wired to the panel, versus simply unplugging the machine to transport it to another area. Another option is to install a 240 volt outlet in the area or areas where the tool is most likely to be used.
If a user intends to use the compressor often and for long periods, experts recommend purchasing a large tank. The large tank will hold more air for the initial stages of a project, continually filling up as the air runs out. Smaller tanks will run out of air faster, requiring the user to wait until filled. Tools that require small amounts of forced air will use less tank air overall, compared to high-powered sanders and grinders that deplete their air supplies quickly.
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