Plasma cutting

Paul Allwood

Well-known member
Premium Member

Equipment
Kubota B7200HSTD, RC60-72H MMM, homemade FEL, forks & ballast box, rotary hoe
Jul 8, 2025
531
865
93
Baranduda, Victoria, Australia
I've finally had a go at using my new plasma cutter in a real project today - still trying to work out how to use it properly.

It's a Unimig Envy Cut 45 Air. I'm in Australia so it runs off 240 Vac, and it has an on-board compressor. It also has a "smart-cut" feature where I dual up the material and thickness and it sets the current and air pressure.

Below is the third cut I made in 12 mm mild steel plate. The first 2 cuts looked about the same. There's a lot of dross on the bottom of the cut - some stick to the scrap, some stick to the workpiece.

PXL_20260518_040638465.MP~2.jpg

The dross chips away easily.

For the plasma cutters out there, does this look normal or is there something I should do to improve it ?

Here are the settings the machine chose.

PXL_20260518_040631753.MP~2.jpg

It also displays a suggested cutting speed, 400 mm/min in this case. I tried to judge this manually by working out how long it should take to run the whole length of the cut.