Cant get rid of heavy dross on 1/2 plate

Been battling this all day, im cutting small 1.5 rounds out (edge start) and the drops are the parts i need, and the dross is mostly only on the round drops?

The cut quality is good, as long as i edge start, if not the tip is lost right on the start of the pierce and very misshaped due to the tip blowing out

its a heavy thick bubbly dross and is very hard to remove and some will not come off

Cut speed makes no difference.
new consumables.

Everlast 62si

65 psi
55 Amps
12 IPM

Air should be 75 to 80 psi flow, 60 amps and about 22 ipm

Excessive Dross Formation

a. Cutting speed too slow

b. Torch standoff too high from workpiece

c. Worn torch parts

d. Improper cutting current

Tried higher pressure no change, this machine seems to like like 65 psi

I have the 62i…
and I agree they prefer the 65PSI…you can crank it up a bit…

I have to ask…how dry is your air…what are you running to dry air?
I found the everlasts need nice dry air…

can you post a picture of the consumable and the dross and cuts…

Running a DeVilbiss Cq3 fallowed by a motor guard fallowed by an additional inline filter(like the Devilbiss)

What is your torch height at .060" between tip and metal?

you may have some moisture issues…the motorguard should be the very last item before the plasma…it is noit a very good unit to dry with…they plug up and corrode.

I have had, am putting back my full dryer system once my garage is done…

60 gallon compressor between the head and the tank I have a home built copper wall cooler…soon changing to a radiator type cooler with drip leg with auto drain…then into the 60 gallon tank…from the tank through a refrigerated dryer…then through a beaded desiccant dryer…then through the motor guard…

when I added the copper wall cooler I doubled my consumables life…then when I add my refrigerated dryer I added another 25% life to my consumable…

I live in Ottawa Canada and I deal with extreme temp variations and high humidity…and I can get over 800 pierces with this setup…even then I prefer to change out before they blow on the table.

I use the “used” consumable on the hand torch for crappy cuts

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I dont think its a moisture issue, as on all my other cuts with thinner material i can produce nearly dross free cuts

on this thicker material Ive upped the cut height as it resulted in the least amount of bevel.


Never more the .060" on plasma cutters 60 amp or less. Is the metal in the water? if it is then that may be cooling the doss to fast.

Ive got drip legs as well before any filtering or drying

I hear you, but on this thicker material the best cut quality has come from higher cut height.

An extra 20 thou isnt going to make that much dross.

You get 800 pierces in 1/2?

not cutting 1/2"…11ga mostly

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Yes it can. There is no reason for that much doss. there is something wrong some were.

yes, something is amiss.

the dross is consistent with cut height, only thing that changed is cut quality, not the dross.

Read my other threads if you think that torch height is very important

Cuts look good. What size cutting tip are you using? shielded or unshielded?

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thanks, shielded, .08 1.0 and 1.1

All the same dross.

0.8 are 30 amp unshielded tips so you wouldn’t use them for 1/2". 1.0mm/50 amp tips and 1.1mm/60 amp tips can be shielded or unshielded. If your using 1.1mm/60 amp shielded tips with a CNC shield you need to measure the torch height between the tip and work piece not the shield and work. If the distance between the shield and work piece is more then .035" the torch height is way to high.

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