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Re: Plasma Cutters

To: Linda Grunthaner <grunthaner@gmail.com>
Subject: Re: Plasma Cutters
From: Jim Juhas <james.f.juhas@snet.net>
Date: Fri, 09 Mar 2007 21:22:24 -0500
I bought a Hypertherm machine a year ago used on Ebay for about $600.  
It is probably half the advertised capacity of this one, and at the 
time, I saw other unknown brands available.  I went with a name after 
learning how dependent they are on consumables (tips and other torch 
innards) and chose a brand that would allow me to buy stuff at the local 
welding supply store.

Great for cutting body panels, but you need to be careful about what's 
behind.  Throws a lot of sparks.  The limited capacity of mine is enough 
for my use, mostly car-like gauge steel and aluminum.  Aluminum up to 
.060 cuts great, but at about 1/8" the cut is ragged.  Too much heat 
dissipation, I think.  Steel up to 1/8" is easy and clean, though.  
That's as thick as I've used it for.  I can use torches for heavier stuff.

If your convinced the machine and the supplier are reputable and 
reliable, and you can easily obtain consumables (the torch might be an 
off-the-shelf item) then that price would make it a very good deal.  
I've read, though, that some Chinese units use substandard electronic 
components that don't last.  Research carefully, find other owners if 
you can.

I have an inverter TIG and I am a big fan of that technology.

Jim

Linda Grunthaner wrote:

>List,
>I don't know very much about Plasma cutters but after seeing the videos on
>this eBay listing 120095107703 I have got to get one. Does anyone know how
>they work and what their limitations are for example when cutting how far
>behind the steel you are cutting will the cutter effect and what do you use
>behind the steel for cutting like distance before it will heat up the
>blacktop or concrete garage floor? Also could I cut out sections of Sprite
>rockers with it without cutting the walls behind the rockers? I also want
>this machine for cutting general steel for student projects at my school
>(I'm the shop teacher) because our building shop has classrooms above
>therefore they will not allow welding equipment so I use my welders in my
>garage for some projects.
>
>Also is this unit cost about average?
>Thanks Linda
>
>62 California Sprite "Pinky"
>www.freewebs.com/lgrunthaner




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