J45XC, Double Pointed Spacer

Hi Folks,
I am using one of the newer Vipercut 30i with the J45XC-4 torch.

I am trying to determine if it makes sense to keep using the RW0678 double pointed spacer (which looks like a drag nozzle) with the standard shim heights generally reported on the community spreadsheet. The machine arrived with this assembled onto the torch. It is a seperate piece from the nozzle itself. Any danger in just taking it off?

I seem to have to cut everything on thinner shim 0.06".
Otherwise I lose the arc. I haven’t tried using it with it removed yet but it doesn’t seem like it makes sense for it to be there unless you are working by hand?

A secondary question… Does anyone know if there is a .6mm nozzle?
I have the RW792-08. I tried searching RW792-06 with no luck.

I have the PLAK06 kit with plenty of consumables but nothing with a smaller nozzle. I’d like to try to minimize kerf on thin detailed work.

Thanks

Welcome,

Yes you need to remove it on the table, but you must replace it with the shield cap or you will burn up the threads on the retaining cup.

No there is no 0.65mm cutting tips for that torch.

Thanks! This is how I set it up last night.
In hindsight that makes perfect sense. I guess the drag part being separate from the nozzle itself confused me.

Good to know on the smaller nozzle.

How did the torch end up operating without the RW0678 double pointed spacer?

Also where did you purchase your consumable kit?

Hi Chris,

For me it works much better with the “drag tip”/double pointed spacer removed. I no longer get arc loss on my thin cuts and I am able to get a better kerf for detailed work.
In the past week I have cut steel in 20 gauge, 11 gauge, and 1/4" with no real issues. (Other than user error).

Hopefully the link comes through correctly below.

What settings did you end up using on the 11 gauge and 1/4" ? The cut charts I find are all for the razorcut45.

The 11 gauge I ran at 100 ipm at about 28 amps, 75 psi, tip lifted slightly above the height of the thinner shim. Water table fairy full. This could be tuned better as I had dross to hammer off but it came off easy and left useable parts for me. IMG_20200905_135106_584|500x500

The 1/4" was at I think 20 ipm at 30 amps, 75 psi using the thicker shim. Again some dross to hammer off.
I didn’t do any long runs with the 1/4". Just cut a 1" square for a test and a line to measure kerf for reference when setting up future stuff. I always use the values from the razercut chart as a starting point and adjust from there. I am certainly no expert but I am getting results that I am happy with.

I tend to adjust my pierce delay a little longer for thicker material.
500ms or more.

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Excessive Dross Formation

a. Cutting speed too slow

b. Torch standoff too high from work piece

c. Worn torch parts

d. Improper cutting current

Also torch height is to high .050 to .060 max. Air pressure seems a little high for 30 amps. It will cause an erratic arc cone.

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