Monday, June 8, 2009

How to fix a plasma cutter

How to fix a plasma cutter. How to fix a 40 amp plasma cutter, 50 amp plasma cutter, 60 amp plasma cutter.

How to repair a plasma cutter.

This page could potentially help out someone who owns any of the following plasma cutters:

Lotos CUT40 plasma cutter
Lotos CUT40A plasma cutter
Lotos CUT40D plasma cutter
Lotos CUT50 plasma cutter
Lotos CUT50A plasma cutter
Lotos CUT50D plasma cutter

Volt Silverline CUT40 plasma cutter
Volt Silverline CUT40A plasma cutter
Volt Silverline CUT40D plasma cutter
Volt Silverline CUT50 plasma cutter
Volt Silverline CUT50A plasma cutter
Volt Silverline CUT50D plasma cutter

Simadre CUT40 plasma cutter
Simadre CUT40A plasma cutter
Simadre CUT40D plasma cutter
Simadre CUT50 plasma cutter
Simadre CUT50A plasma cutter
Simadre CUT50D plasma cutter

Riland CUT40 plasma cutter
Riland CUT40A plasma cutter
Riland CUT40D plasma cutter
Riland CUT50 plasma cutter
Riland CUT50A plasma cutter
Riland CUT50D plasma cutter


Chicago Electric CUT40 plasma cutter
Chicago Electric CUT40A plasma cutter
Chicago Electric CUT40D plasma cutter
Chicago Electric CUT50 plasma cutter
Chicago Electric CUT50A plasma cutter
Chicago Electric CUT50D plasma cutter

Why? Because when trying to fix my Lotos CUT40 plasma cutter, people sent me resistor values for their plasma cutter's high voltage rectifier circuit and the values were all the same even though the plasma cutters were made by different manufacturers and the models were different.

Continue reading this blog to find out if your defective plasma cutter has the same problem as mine: burned out diode, leading to a burned our resistor.

There are extremely high voltages and currents inside a plasma cutter. I take no responsibility for anyone doing any repair work on their plasma cutter. Before working on any internal components, unplug the power, hold the trigger switch so the capacitors discharge (you will hear them), then hold a screwdriver or other insulated device across one of the four large capacitors on the bottom power board so you see a spark. Good luck!
Posted by at

8 comments:

  1. Plasma CuttersOctober 13, 2009 at 12:19 AM

    Hi,
    My name is John i would like to do link exchange with this blog. If you are interested mail me with your details.
    Email-id:weldings.info@gmail.com

    Title:Welding Machines
    Website:http://www.everlastgenerators.com


    Thanks
    John

    ReplyDelete
  2. National WeldingMay 4, 2011 at 3:53 AM

    Hi Luke, really great safety tips during a repair of plasma cutter…..

    ReplyDelete
  3. National WeldingJuly 6, 2011 at 3:15 AM

    Very informative post you have shared. Thanks for sharing.

    ReplyDelete
  4. Jake SmithDecember 16, 2011 at 7:24 PM

    Hey John, you have great information about plasma cutter.

    ReplyDelete
  5. UnknownJuly 22, 2013 at 4:52 PM

    Hi Luke name is Chris Ehrhardt and I would truelly like to get a hold of you. My email is guarnteed2work@yahoo.com. My problem is a mosfet blowing in my 50amp plasma cutter. As soon as the trigger is pressed "BOOM". This happened about 10sec straight out of the box. Well I waited to long to return so I have made it a mission to figure out whats going on here. I replaced the mosfets and it came on and as soon as the trigger was pressed the same explosion happened. I have another plasma cutter that worked perfectly out the same outlet. Cord was connected correctly to 220. Soo what.

    ReplyDelete
  6. UnknownJuly 22, 2013 at 4:53 PM

    Chris Ehrhardt Ph#9793191591 or email guarnteed2work@yahoo.com

    ReplyDelete
  7. UnknownJune 17, 2016 at 6:00 AM

    Thank you for such a fantastic blog , and I have been on the lookout for such information. plasma cutting machine

    ReplyDelete
  8. UnknownJune 20, 2017 at 12:54 AM

    Electric cutter suppliers in Singapore. VIEW MORE - Electric cutter

    ReplyDelete

Subscribe to: Post Comments (Atom)