An air chuck for automotive or bicycle tires will operate from a portable compressed air tank. The pressure in the tank is between 100 and 150 PSI, and automotive tires operate near 35 PSI. The air chuck will deliver air into the tire until the refillable tank pressure drops to a level equal to the tire.
A portable air tank will operate an air blow gun. These guns shoot a pencil thin stream of air which blows away grinding dust or saw dust from a shop work bench. In many applications, a clean work area is essential to completing a task, and the portable air tank will work consistently until the tank is out of air.
A small engraving pen can function for a short time from a refillable air tank. The tool consumes much less air than a rotary grinder or impact wrench, which could never be operated on a portable tank. A typical engraving pen needs 90 PSI to operate, and only consumes 1 cubic feet of air per minute (CFM). Depending on the size of the tank, an operator would get limited use of this tool from a portable tank.
Commercial nailing and stapling guns consume various amounts of air. A portable tank would never operate a framing or roofing nailer because these tools consume too much air with each trigger pull. However, a brad nailer, and a small carpet or upholstery stapler consumer only .03 to .05 cubic feet of air per shot. These tools could operate on a portable tank in an emergency, and provide a limited amount of shots.
Most air tools consume high amounts of air, and will not function for more than a few seconds on a portable air tank. Mechanic's shop tools including rotary tools, rotary grinders, impact wrenches, air hammers cannot be operated on a portable tank. Similarly, high use carpentry tools such as framing nailers or roofing nailers would only fire a few times on a portable tank. Air brush paint equipment required a pressure regulated, consistent air flow. These tools will also not operate on a portable tank.