These devices utilize an internal combustion engine to power an air compressor pump, producing compressed air for various applications. A common example is a portable unit powering pneumatic tools at construction sites where electricity is unavailable. This setup offers a self-contained and mobile source of pressurized air.
The independent nature of these machines offers significant advantages in remote locations or during power outages. Historically, they have been essential for industries like construction, mining, and oil and gas, enabling operations far from established power grids. Their reliability and portability are key contributors to productivity in these demanding environments.