Would 100 psi air supply be enough for 50-100 cubic feet per hour?

Answer 1

The pressure that a compressor produces is not the capacity of the compressor. Most small compressors will produce 100 psi pressure but how many cubic feet of air they can move in a given time varies greatly. For instance a small single phase hobby compressors will supply around 7 cfm (cubic feet per minute) at about 80 psi. Which is plenty for spraying but would struggle to supply most air tools. So that these small compressors can be more useful they usually have an air receiver to store the compressed air. This allows the unit to supply larger amounts of air for short periods of time thus overcoming some of the limitations of the small unit. For lower pressures (30-40 psi) a vane compressor is capable of supplying much higher volumes of air (cfm's) for its size.