Answer
Nov 18, 2025 - 11:09 AM
A 20-gallon air compressor can run a plasma cutter, but it depends on the plasma cutter's specific air requirements (CFM and PSI). Many small to medium plasma cutters require around 4-7 CFM at 60-90 PSI, which most 20-gallon compressors can provide for short to moderate cutting sessions. However, for extended use, you may need to pause occasionally to let the compressor catch up.
