Summary: A pneumatic marking machine uses compressed air to drive a stylus into metal, and the three pneumatic machines in most manufacturers’ catalogues are not interchangeable. A standard portable pneumatic unit suits flat, accessible parts at a bench. A deep marking machine handles rough castings with surface variation up to…

Summary Yes, a portable pneumatic marking machine can mark uneven or rough cast surfaces. MarknStamp says dot peen works on flat, curved, and uneven surfaces. Mark quality still depends on fixturing, surface condition, and stylus choice. Rough, oily, or dirty surfaces can cause skips or inconsistent marks. MarknStamp’s portable pneumatic…