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Spot Welding Machine for ESAB 500i plasma cutter

Spot Welding Machine for ESAB 500i plasma cutter

Welding Automation for ESAB 500i plasma cutter

laser Welding Machine for ESAB 500i plasma cutter

Welding Automation for ESAB 500i plasma cutter

Welding Automation for ESAB 500i plasma cutter

Platform Spot Welding Machine for ESAB 500i plasma cutter

Platform Spot Welding Machine for ESAB 500i plasma cutter

ESAB 500i plasma cutter


Sat, 27 Nov 2021 07:51:29 GMT
Hi,Am considering buying a lightly used ESAB 500i plasma cutter and would like to know whether it is MOSFET or IGBT technology.  Hopefully someone here can help and/or advise.Jerry30+ yrs Army Infantry & Field Artillery, 25 yrs agoMiller 350LX Tig Runner TA 210, spool gunLincoln 250/250 IdealArcESAB PCM 500i PlasmaKazoo 30"  vert BSKazoo 9x16 horiz BSClausing 12x24 lathe20T Air Press
Reply:IGBT technology.Older machine, but I was always was impressed with how this 35 amp machine cuts aluminum.. No matter what anybody says, the very small PT-31 torch very handy with it's small size. I would like a Powercut 650 over most new machines out now, because of the size of the torch. All the new tech torches are great but size is not their strong point at all..Esab/Lorch ET-220iEsab 160i caddyThermal LM-200/ Lincoln feedersThermal 95sThermal 60i- 3phase /RPC powered Thermal Drag-gun 35CThermal 15cINE 1500 Klutch 140i
Reply:Thanks Brand X.  I was hoping it was not a Mosfet.  No indication of technology in the owner's manual I downloaded.  I'm focused on aluminum because I have a lot of it.  Good info.Jerry30+ yrs Army Infantry & Field Artillery, 25 yrs agoMiller 350LX Tig Runner TA 210, spool gunLincoln 250/250 IdealArcESAB PCM 500i PlasmaKazoo 30"  vert BSKazoo 9x16 horiz BSClausing 12x24 lathe20T Air Press
Reply:
ESAB 500i plasma cutter
Originally Posted by storeman
ESAB 500i plasma cutter
Thanks Brand X.  I was hoping it was not a Mosfet.  No indication of technology in the owner's manual I downloaded.  I'm focused on aluminum because I have a lot of it.  Good info.Jerry
Reply:
ESAB 500i plasma cutter
Originally Posted by Brand X
ESAB 500i plasma cutter
To me it does not matter. The Caddie mig 200i is Mos-fet and it's a awesome late model unit.. Guess it's mostly who, and how they made it.
Reply:
ESAB 500i plasma cutter
Originally Posted by storeman
ESAB 500i plasma cutter
That makes sense.  I'd just read so many posts everywhere about mosfet problems, but I guess they were all likely Chinese-made.Jerry
Reply:
ESAB 500i plasma cutter
Originally Posted by cope
ESAB 500i plasma cutter
Back in the day, MOSFET was state of the art.  I think the problem with the Chi-Com machines may be on the engineering side.
Reply:I am sure most of the best plasma's use IGBT designs. I know the USA 500i was a good machine, and I would not worry about the guts too much. It's getting long in the tooth, so you never know on something like that.. When my friend at Airgas sold those machine,the only real problem  was the on-off switch on the back would break now and again. From being rough with the machine mostly. Kind of a heavy machine by today's standards, but was a quality USA built unit.. They hold their value on Ebay..etc...Esab/Lorch ET-220iEsab 160i caddyThermal LM-200/ Lincoln feedersThermal 95sThermal 60i- 3phase /RPC powered Thermal Drag-gun 35CThermal 15cINE 1500 Klutch 140i
Reply:@ storeman - aloha.  Post a few images of your existing (installed) torch consumables and overall "issues" you are experiencing with your PCM 500i  cutter.  The ESAB users here should be able to lend you a hand.  That's a nice strong machine from the looks of it and after reading the O&M Manual."Discovery is to see what everybody else has seen, and to think what nobody else has thought" - Albert Szent-Gyorgyi
Reply:I purchased mine new in July, 1996 and it's never needed repairs of any kind. I can't count the dozens of quarter panels and roofs on automobiles it's cut out and off, or how many aluminum sides of delivery vans it's sliced out.  It cut every single sheet of steel siding on my 7000 sq. ft. shop that needed trimmed in both painted and galvanized. It still has the original torch also and the only things not original are the consumables.Good machine no doubt.SlobPurveyor of intimate unparalleled knowledge of nothing about everything.Oh yeah, also an unabashed internet "Troll" too.....
Reply:There is nothing wrong with MosFets (metal oxide semiconductor field effect transistor) as long as the design team uses good quality components and designs them into the circuit to be reliable. The Chinese plasma cutters and welders design them into the circuit to work, but with the most important factor being low cost. Unfortunately when you are designing for reliability cost cannot be the major design factor.IGBT's (insulated gate bipolar transistor) do the same function as MosFets (control output power) , but are newer technogy that can handle higher input voltages....so they can be designed to better absorb input line spikes and droops with less probability of failure. Still, IGBT's can fail before their time if they are marginally designed into the circuit, and they do.Jim Colt  Hypertherm
Reply:
ESAB 500i plasma cutter
Originally Posted by ManoKai
ESAB 500i plasma cutter
@ storeman - aloha.  Post a few images of your existing (installed) torch consumables and overall "issues" you are experiencing with your PCM 500i  cutter.  The ESAB users here should be able to lend you a hand.  That's a nice strong machine from the looks of it and after reading the O&M Manual.
Reply:
ESAB 500i plasma cutter
Originally Posted by jimcolt
ESAB 500i plasma cutter
There is nothing wrong with MosFets (metal oxide semiconductor field effect transistor) as long as the design team uses good quality components and designs them into the circuit to be reliable. The Chinese plasma cutters and welders design them into the circuit to work, but with the most important factor being low cost. Unfortunately when you are designing for reliability cost cannot be the major design factor.IGBT's (insulated gate bipolar transistor) do the same function as MosFets (control output power) , but are newer technogy that can handle higher input voltages....so they can be designed to better absorb input line spikes and droops with less probability of failure. Still, IGBT's can fail before their time if they are marginally designed into the circuit, and they do.Jim Colt  Hypertherm
Reply:
ESAB 500i plasma cutter
Originally Posted by storeman
ESAB 500i plasma cutter
Thanks Jim.  Thanks Slob,I bought the machine and have had trouble with consumables burning up in no time at all (minutes/seconds).  I bought Chinese consumables and likely have no one to blame but myself.  What consumables do you buy and where do you source them?Jerry
Reply:The trick is to use the right China made consumables. Jim uses those in his Powercut 650, and has great success.( I sold him that machine) Electrodes you do not notice one bit of difference. I had a hard time noticing any difference with the tip life either. I had tons of factory Esab, and L-tec consumables to compare too.. You have to use the factory six hole swirl ring, and cup, but the other stuff is fine.. tried it in my 380 also.. I thing about the PT-31 XT it is the about only torch that the china consumables can do a good job in. (Well electrodes do just fine in the Thermal PCH-10 series too..)Esab/Lorch ET-220iEsab 160i caddyThermal LM-200/ Lincoln feedersThermal 95sThermal 60i- 3phase /RPC powered Thermal Drag-gun 35CThermal 15cINE 1500 Klutch 140i
Reply:Does anyone know the configuration of the dip switch on the top of pcm 500i control board? Mine has a problem. Plss helpe

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