An Air Compressor that is portable is utilized to supply compressed air on development sites, street works, or at whenever a situation needs packed air, where a stationary compressor is not appropriate.
They are additionally utilized as (crisis) reinforcement compressors for production factories, for instance when their stationary compressor needs maintenance or when they quit working. They are powered by diesel motors, so they needn't the electricty.
Here is a practical video on how to build a portable air compressor at home: