![]() Air-operated paintbrushes also keep the flow of colour free from any moisture and dirt. One of the most useful pneumatic equipment is the airbrush that prevents bubbles, fisheyes, splotches and other inconsistencies in painting vehicle, wall and furniture surfaces. Air compressors of between 8-16 CFM at 6.2 bar can power such shearing equipment. Also, a standard air compressor powered shear is capable of cutting into sheet metals with a thickness of 16 gauge, 20-gauge cold-rolled steel and 14-gauge aluminium. Modern pneumatic tools are equipped with pistol-grip shears that can make up to 2600 cuts in a minute. ![]() They are used to shave, trim, slice and outline metal sheets for handicrafts and industrial works. Shearing equipmentĪir shears are good for heavy-duty metal cutting that cannot be done with nibblers. ![]() They do not consume much power, and 4 CFM at 6.2 bar is their standard requirement. Air riveting tools are also used in construction work – commonly used to set up corrugated metal roofs. As permanent clasps, rivets are still used in numerous mechanical applications, such as aircraft construction that needs strong and reliable fastening with minimum weight. RivetingĬontrary to what some people believe, riveting has not become obsolete after the advent of welding. An air compressor between 4-10 CFM at 6.2 bar can effectively power cut-off tools. With air-powered tools, it becomes easier and quicker to slice metal sheet corners and cut out panels from large metal walls. Cut-off toolsĬut-off tools need considerable power to sever metal sheets in the building and maintenance of vehicles, industrial applications, and artistic works. For most applications, a basic 7-inch portable angle grinder needs between 5-8 CFM at 6.2 bar. When supported by an appropriate sanding disc, angle grinders can also be used to smoothen the surface and edges of some materials. Angle grindersĪir compressor powered angle grinders find use in car repairs and metalwork where they are used for grinding, buffing and cutting. Normally, air chisels need between 3-11 CFM at 6.2 bar. It is particularly handy in carving out mortises and dovetail joints while building adjacent walls and shelves. It is used to cut into wood and stone, for construction and home renovation applications. Chiselling toolsĪir chisel is a handheld pneumatic tool with a narrow and flat cutting edge. ![]() For this application, compressed air powered drills, both reversible and straight-line, need between 3-6 CFM at 6.2 bar. While the commonly used electric drills can penetrate only softer surfaces such as wood or fibreglass, air compressor based pneumatic tools can also drill through hard materials such as rocks and metals. Take a look at the airflow required for some common air compressor applications: This is to ensure the air compressor doesn’t run at full capacity at all times. Remember that when you have multiple applications with different airflow demands, you should add up their individual requirement and consider the total usage to be 40-50% higher than the obtained number. Larger equipment, on the other hand, demand more than 10 CFM at 6.9-8.2 bar. Another parameter considered along with CFM is the amount of pressure that the air compressor can offer, which is measured in bar, kg/cm2 or PSI.įor instance, small pneumatic tools usually need up to 5 CFM at 4.8-6.2 bar. It is the amount of air generated by the air compressor at a certain pressure level. The free air delivery in an air compressor is measured in cubic feet per minute (CFM). One important consideration is the air pressure requirement of the equipment that the air compressor will operate. If you plan to buy an air compressor for your industrial application, you need to mull over several factors that best suit your needs. What is CFM or airflow, and what are the requirements of some common pneumatic tools?
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