whats everyones feedrates

[bigS-dime]

I have a TD cutmaster A80 , just curious as to what feedrates others are at with similar plasma cutters? Mainly smaller stuff 1/8", 3/16", 1/4" etc..... Trying to see if i'm in the ballpark? I am at 80 ipm w/ 1/8", 65 w/ 3/16" and 55 w/ 1/4". I also slow the arc rate down to 70% of those numbers.

[BESRK]

I cut with a HT1250

1/8" at about 40amps and 60-65IPM using "fine cut" consumables

3/16" at about 40amps and 45IPM using "fine cut" consumables

1/4" at about 60amps and 55IPM using 60 Shielded Nozzles

3/8" at about 65amps and 45IPM using 80amp Shielded Nozzles


I usually check the first few pieces and adjust voltage (height adjustment) if I need to. I also check height periodically while cutting.

[xr8ed]

TM3-5x10
Hypertherm 1250
AVHC - I only run in auto mode for large parts or warped sheets.

-I always ground directly to my sheet, not to the slats.

-My Numbers are based off of my hypertherm manual, then i've adjusted from there to what i've found works better on my table.

1/8" -finecut @ 40a -49 ipm - AVHC @ 83 volts
1/8" - finecut @ 50a - 88 ipm - AVHC @ 77 volts
3/16" -40a @ 40a - 60 ipm -AVHC @ 147 volts
1/4" -60a @ 60a - 83 ipm -AVHC @ 138 volts
1/4" - 80a @ 80a -102 ipm -AVHC @ 134 volts
5/16" -80a @ 80a - 80 ipm -AVHC @ N/A
3/8" - 80a @ 80a - 60 ipm -AVHC @ 137
1/2" - 80aa @ 80a - 37 ipm - AVHC @ 140

I'm going to try and use some of the lower amperage and slower speeds you guys are talking about and see how they work too. Right now my cut quality is good, but i know there's always room for improvement.

[HardcorewannabeXJ]

Everyone should keep in mind that the voltage has a lot of varying factors, and may not be the same at different locations across the country, so don't trust someone else's values to be perfect. Same goes for material, be it hot rolled, cold rolled, P&O, etc. the cut speed and amperage could vary.

That being said, around the shop we do a lot of 1/8" and 3/16".

With a Cutmaster 2 series (82, 102, 152, A60, A80, A120)

1/8" 40 amps @ 85 inches per minute @ 106-111 arc volts
3/16" 40 amps @ 50-55 inches per minute
3/16" 60 amps @ 80 inches per minute @ 110-120 arc volts.

[BESRK]

I also notice as the electrode burns away, the torch drops a bit to keep the same voltage height.. so I have to adjust voltage for the height control periodically while cutting..

[TorchmateSupport]

Originally Posted by BESRK

I also notice as the electrode burns away, the torch drops a bit to keep the same voltage height.. so I have to adjust voltage for the height control periodically while cutting..

Good observation, the arc voltage is actually a measurement between the tip of the electrode and the material. As the electrode wears the height will need some slight adjustment. This is one reason why we suggest running a few cuts in manual mode first to find your working voltage then go into automatic mode. This change is subtle but if you are looking for the sharpest cuts it is something to be aware of.

Some shops will find a voltage that they can set the machine at and cut all day regardless of what the electrode wear is. They may have a bit of cleanup throughout the day but their operators have less to worry about. On the other end of the spectrum we have some customers who will adjust frequently and this time spent gives great cuts throughout the day. It's all about the specifications of the parts cut and the need for simplicity.

-Jack

[BLKBOB]

Well I finally got my machine up and running. I had a chance to cut some 14G with my powermax 45 @ 30 amps and 100 inches per minute. I found that some of the parts would actually weld themselves back together making them difficult to remove once finished. Any one have something similiar.

Gord

[SoundManCO]

Originally Posted by BLKBOB

Well I finally got my machine up and running. I had a chance to cut some 14G with my powermax 45 @ 30 amps and 100 inches per minute. I found that some of the parts would actually weld themselves back together making them difficult to remove once finished. Any one have something similiar.

Gord

Have you tried running "Line speed 130-10.fgc" that came on the CD with the 2x2? What is your air flow set to?

[MQYJ]

Originally Posted by BLKBOB

Well I finally got my machine up and running. I had a chance to cut some 14G with my powermax 45 @ 30 amps and 100 inches per minute. I found that some of the parts would actually weld themselves back together making them difficult to remove once finished. Any one have something similiar.

Gord

Is it welding itself back together or not cutting all the way through?

[xr8ed]

Originally Posted by BLKBOB

Well I finally got my machine up and running. I had a chance to cut some 14G with my powermax 45 @ 30 amps and 100 inches per minute. I found that some of the parts would actually weld themselves back together making them difficult to remove once finished. Any one have something similiar.

Gord

First thing that comes to mind is you're cutting too fast. slow it down and see if that helps.

Maybe try cutting at 40a if you want 100 IPM. Either way you need more power to go faster. Or go slower with 30a.

[BLKBOB]

I'm trying to run the line speed test but can't seem to open the file. Do I open it right in the driver software or in the torchmate cad?

g

[BLKBOB]

Originally Posted by SoundManCO

Have you tried running "Line speed 130-10.fgc" that came on the CD with the 2x2? What is your air flow set to?

Air flow is 90psi

[Dnmeistr]

The lines speed test is a g-code file ending with .fgc so you will need to open it in the driver software by clicking on Fine then Open G-Code.

[BLKBOB]

perfect thank you I will give that i try