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This compresses the air and stores it in a tank. What is Required to Build an Air System in a Workshop? So as you can see, there are advantages and disadvantages to using air tools and there is a time and place for using either a cordless battery tool, a mains powered tool or an air tool. They are usually more expensive than their electric counterparts.Air tools can be somewhat noisy as air exits the exhaust port on the tool.If a tool is used infrequently, it can be lubricated with a few drops of oil dropped into the intake port Air fed to a tool must be filtered and lubricated to prevent premature wear.An air compressor is required, adding to the cost of the system.However coiled air hoses are available which may be more convenient e.g. This is usually thicker, heavier and less flexible than the power cord of an electric tool. An air hose is required to supply air to the power the tool.However, depending on the application or environment, the advantages may outweigh the disadvantages. So they can be used in cramped locations (e.g. Tools are quite slim compared to electric tools with bulky motors.There is no electrocution risk in damp environments.This can be a distinct advantage in hazardous environments where there may be gas or flammable liquids Unlike electric tools which have a universal motor (it can run on AC or DC) which produces sparks at the brushes in contact with the commutator, an air tool is spark-less.
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If the trigger on the tool isn't released immediately, the motor can rapidly burn out If you stall an electric tool, the back EMF(Electro Motive Force) drops to zero and current flowing through the motor becomes very large. An air tool can be stalled indefinitely.They are simpler and have less working parts than an electric tool, so there is less to go wrong.This is important for assembly workers who may be using a tool all day, and obviously a lighter tool will lessen fatigue Air tools have simple air motors or pistons which are lighter than an electric motor. In other words, an air tool will be lighter than a cordless or mains powered tool of the same power rating. They have a high power-to-weight ratio.