Powermax 85 sweating

[cutnweld]

Cut these bucket mounts from 1.75 inch thick QT100 with my powermax 85. Wasnt sure if the machine would blow up or not as it was a hot day and I was running it wide open for around 20 minutes straight then would stop and let the fan stop before continuing the cut. Was impressed that it cut it, tho I think it is time to look for an oxyfuel head as this is way beyond the machines rated capacity.

[djreiswig]

What thickness?
Nevermind. I see it says 1.75".

[DieselFumes]

That's gotta be a typo

[cutnweld]

That's gotta be a typo

No. Thats the only reason I posted it. Nothing special about the ears. But there is something great about the thickness, esp with only 85 amps.

[Jason@bc]

Are you sure it's not .75'' instead of 1.75''? If it is 1.75'' you got a heck of a machine, I've done 1'' mild steel with my 85 amp and the cut was not as straight as yours, for the big holes you probably drilled a hole first with a drill...no way the machine pierced 1.75'' steel. Anyway you did a fantastic job if this is 1.75'' thick!

[TJS]

I also hardly see any bevel. Amazing.

[cutnweld]

Next you fellas are going to say my tape is wrong. I didnt say i was moving at 150 ipm tho did I?

[cutnweld]

Yes I sure did predrill start points, even do for 1"

[ROKCRLER]

Impressive cuts!

[DieselFumes]

Wow! I would have never thought that possible. Well done!

[Jason@bc]

You sure are getting your $$$ worth on that Hypertherm 85!

[adbuch]

Very impressive indeed!
David

[bigcreek]

That is freaking incredible. I cant even do near that good on 1" with my powermax 85. That blows me away. What was the IPM?

[SegoMan DeSigns]

This makes me want to find some 2" to give the 105 a work out

[plasmanewbie]

This makes me want to find some 2" to give the 105 a work out

Oh I wanna see that!

[cutnweld]

That is freaking incredible. I cant even do near that good on 1" with my powermax 85. That blows me away. What was the IPM?

I set it at 2.5 ipm as a starting point, ended up using 4-5 ipm. I discovered a 75 cent powermax upgrade one day a year or so ago from frustration that i will try to post when i have time.It will make yours cut like mine. I will probably post it in the hypertherm section tho.

[adbuch]

Cutnweld - Just curious - what is your 75 cent upgrade - in a few words? Maybe just give us a hint. I have a powermax 85 and perhaps it would apply to my machine as well.
Thanks,
David

[TJS]

Yes. Inquiring minds want to know.

[weldguy]

I too am curious...and sounds like it will fit my budget.

[caretech]

I happen to know cutnweld, and run the same "upgrade" on my table. Many thanks to him for sharing this. Without it I get ugly beveled cuts on 3/8. With it, nice straight cuts on 1" which is the thickest I have cut yet with my PM 85.

The 75 cent fix is just a rubber o-ring, installed where indicated by the arrow in this screenshot from cutnweld's cutting picture above. Seems to stop some of the excessive air blow-by (for cooling purposes or what???) and increases air pressure at the nozzle.

2023-06-26_11-44.png (60.27 KiB) Viewed 11114 times

2023-06-26_11-44.png (60.27 KiB) Viewed 11114 times

Cutnweld is free to chime in with corrections or additions.

[djreiswig]

Isn't there already an oring installed there?

[adbuch]

Isn't there already an oring installed there?

My thought exactly. I assume he is using a Duramax torch with his Powermax 85. I also have a Duramax torch on my 85 and get good clean cuts on 3/8" material - not ugly ones. Most all plasma cuts will have some bevel, and I believe the bevel angle decreases as the material thickness increases.

David

[vancematsalla]

That's a fantastic cut, I too looked at the 1.75 and then with a tape photo that resolved all doubts
just amazing
stan kern

[cutnweld]

Isn't there already an oring installed there?

Yes but no. This is a different one. seals the cap to the body. Ill post pics, if and when I find time. Unless Caretech wants to.

[weldguy]

Very interesting, thanks for posting back. When I have the chance I will look deeper into this with my PM65 torch.