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Guide

Getting the air supply right

Plasma uses compressed air as the cutting gas. Wet or oily air wears consumables early and spoils the edge.

Getting the air supply right

Pressure and flow by unit

Each MetalWise unit lists the air pressure and flow it needs. Size the compressor for the flow with some headroom, because a compressor running flat out also runs hot and wet.

UnitAir pressureAir flow
P-METALWISE/35--
P-METALWISE/453.8 Bar100 Liter Per Minute
P-METALWISE/P65--
P-METALWISE/856 Bar130 Liter Per Minute
P-METALWISE/1257 Bar150 Liter Per Minute
P-METALWISE/1657 Bar150 Liter Per Minute
P-METALWISE/2007 Bar150 Liter Per Minute
P-METALWISE/2605.5 Bar600 Liter Per Minute

Clean, dry air

MetalWise units have a water trap built in, and a separate filter in the line catches what the compressor sends before it reaches the unit.

Nitrogen

Most MetalWise units can use nitrogen at 99.995% purity as the plasma gas for better straightness and a smoother edge. It costs more to run, so it tends to be used for parts where the edge is visible.