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How to cut thick material from edge

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12 May 2020 22:10 #167570 by alexandrub
How to cut thick material from edge was created by alexandrub
hello,

I ask how can i cut 20mm with an powermax 45 xp? I need to start the cutting from material outside. I tried in different mode but i did not succeeded becsuse the arc ok condition is not met. Finally i start the cutting with material piercing but is not ok for the torch. So how can i start the cutting from outside?

Thank you.

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12 May 2020 22:45 #167573 by rodw
Replied by rodw on topic How to cut thick material from edge
I don't think you will be able to. I use 120 amps on 16mm so I doubt that you'll get the 45 to do the job at all. PLus if you did get it to work, the duty cycle will kick in and it will stop cutting anyway.

Check the specs in your manual and then talk to your Hypertherm Rep about an upgrade. I'd say you'd need 85 amps minimum
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12 May 2020 22:47 #167574 by rodw
Replied by rodw on topic How to cut thick material from edge
ONe rule of thumb I was told was to use 10 amps per mm. That is a bit over but you get what I'm saying

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12 May 2020 23:44 - 12 May 2020 23:45 #167575 by thefabricator03
Replied by thefabricator03 on topic How to cut thick material from edge
I echo Rods statement,

I cut a bit of 25mm plate ,



And 20mm plate,


I have a Powermax 125, and on the thicker stuff it still struggles. It will do it easily enough but its not the same as cutting say 8mm. I really need a 200 amp unit for cutting the thicker stuff. I dont do it all day everyday tho so the 125 is not over stressed.
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Last edit: 12 May 2020 23:45 by thefabricator03.

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12 May 2020 23:59 #167577 by rodw
Replied by rodw on topic How to cut thick material from edge
Oops, I was not game to say 125 amps cos there goes another $3-5k :woohoo: :woohoo:

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13 May 2020 00:02 #167579 by thefabricator03
Replied by thefabricator03 on topic How to cut thick material from edge

Oops, I was not game to say 125 amps cos there goes another $3-5k :woohoo: :woohoo:


Yeah they dont miss you. But the MAXPRO200 retails for $23k AUD, not chump change!

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13 May 2020 01:59 #167595 by rodw
Replied by rodw on topic How to cut thick material from edge

Oops, I was not game to say 125 amps cos there goes another $3-5k :woohoo: :woohoo:


Yeah they dont miss you. But the MAXPRO200 retails for $23k AUD, not chump change!


Now you are talking. HF start so a few extra considerations there

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13 May 2020 02:22 #167601 by thefabricator03
Replied by thefabricator03 on topic How to cut thick material from edge


Now you are talking. HF start so a few extra considerations there


Yeah but I am sure the extra effort to set it up would be worth it. Just for the extra consumable life alone.

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13 May 2020 04:01 #167603 by alexandrub
Replied by alexandrub on topic How to cut thick material from edge
It is working. See the picture:) . The question is how to start cut from the edge not with piercing.
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13 May 2020 07:59 #167618 by rodw
Replied by rodw on topic How to cut thick material from edge
Yeh, we knew what you meant. I had to find your manual. I am surprised they list edge start for material that thick but the proof is in the pudding

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