256 Plasma Question

[everlastsupport]

Make sure the swirl ring is there and right side up. Also, the containing nozzle is on the torch. And it is a little toasty.

[wheelrdealer]

Make sure the swirl ring is there and right side up. Also, the containing nozzle is on the torch. And it is a little toasty.

Here is the A81 disassembled, new consumables ready to install. Any suggestions on where to start to correct this problem? What is a good basic starting set up for 3/16 mild steel? I have a peice of 3/16th I need to cut an arch in for a frame fishplate. Would like to do it with a plasma versus the zip wheel and grinding it down to final shape.

[everlastsupport]

Amps can be low for 3/32" if you like. Make sure the swirl ring has the holes toward the tip/electrode, not the torch. Air pressure around 72 should be fine. The bad consumables, Mark might want to chime in, are you sure you have no moisture in the tank? Do not worry about the nozzle, I've gotten in corners and had blow back mess them up, they still will work fine.

For the guys that asked about the nozzle, lower left corner, looks a little rough. I would grind the end smooth (black part off)

[zoama]

Please note that air pressure needs to be 72 psi while cutting. The pressure will be higher when the air is not flowing. To set the working pressure, turn the postflow to max, then with the torch pointed in a safe direction, tap the trigger just long enough to start the air flowing and adjust the regulator to maintain 72 psi while the air is flowing. After setting the pressure, return the postflow to about 10 seconds to prolong the life of your consumables. I'd use about 35 amps cutting 3/16. Move the torch as fast as it cuts through for the cleanest cut. The faster you move the torch without skipping, the cleaner your cut will be.

[performance]

There's no harm at running at max amps or close to it. The problem with lower amperage is that you have to drop down in size of the orifice to get the most stable arc and highest quality cut. The cut tips are probably good for up to 80 amps, so at 60, you are already down on amperage. Going lower can really start to affect cut quality. A higher amperage cut will also be a faster cut.

[wheelrdealer]

Thanks , I never thought about using post flow to set the air flow. All good suggestions I will try them tomorrow.

Mark

Thanks for the advice I will try it tomorrow.

Thanks

[Gman]

Just to be clear,

Is the torch pictured supose to have the cv0076 part?
Mine does and is chiped, Can I run with out it?


It looks like this one:
http://www.ebay.com/itm/281006865866...84.m1438.l2649

[performance]

Yes yours is supposed to have it, if it is an s 75 and yes you need it.
It insulates the torch head and protects it. Why kind of "chip" do you have?

The A81 pictured above is different and does not use one.