4cefed

Ive had my 180 for about 10 months now and have outgrown it. Im doing alot more of marine fabrication and im finding myself using my TIG for the better part of each day now, so i definately need something with a watercooled torch. And im looking to get something above 250 amps. Also, what are the differences between the syncrowave and dynasty series miller TIG units? And whats the best place to find used TIG machines?

C1V1C

not sure what machine to get but I just ordered my miller syncro 200 from cyberweld.com, ordered it july20 and received it july24, free shipping too.

dfoxengr

syncro 200 is the new 180. wouldnt be "that" much of a step up.

just get whatever you can afford if you like the millers a lot.

JDMorgan

dynasty would be one hell of an upgrade.

2kjettaguy

The dynasty will give you alot more programmable options - especially in aluminum. Pre-flow and post-flow gas adjustment is nice. Pulser (I never use this). The dynasty is an inverter machine and is incredibly light. You can take it anywhere. If you're serious about welding consider the dynasty. Mine will do up to 200 amps and I have never really exceeded 150.

You can get a watercooled torch for the machine you have now. I just got one that's smaller and lighter than the standard Miller torch. I also got a gas lense setup.

Used machines.. good luck. I busted out the VISA and got a dynasty. Year later, no regrets.

k24em2

If you can afford it, get a Dynasty 300 DX if you do alot of aluminum.

awill4x4

Luckily, here in Australia we don't get caught up in the usual "blue versus red" arguments and we get a wide variety of machines that you guys in the USA never get to see. I've tried a lot of machines, (yep, blue and red ones too) and this one's my favourite. Certainly not the cheapest but it sure is one hell of a machine.
Regards Andrew.
ps: it's Japanese.

import2nr88

otc makes really good stuff, so i would imagine their welders are the same.

4cefed

well i do stainless and aluminum equally. So i guess the dynasty would be the best one? how about the larger syncrowaves, are they any good, how do they compare to the dynastys' in the same size?

erebunicrx

dynasty 300 is some loot.

Howitt

Im quite happy with my lincoln precision tig 275

k24em2

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4cefed &raquo;</TD></TR><TR><TD CLASS="quote">well i do stainless and aluminum equally. So i guess the dynasty would be the best one? how about the larger syncrowaves, are they any good, how do they compare to the dynastys' in the same size?</TD></TR></TABLE>

Syncrowave=big
Dynasty=small

The dynasty 300 is about 2x the price of a syncrowave 250, although its far more portable and has more features.

.RTErnie

I have the syncrowave 200...I love it no complaints except that its HUGE and hard to transport.

When I get some more mula I'll be upgrading to a dy-NASTY

Justin Olson

Besides cost, is there any other disadvantage to buying a dynasty vs a syncrowave?

TurboJesse

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Justin Olson &raquo;</TD></TR><TR><TD CLASS="quote">Besides cost, is there any other disadvantage to buying a dynasty vs a syncrowave?</TD></TR></TABLE>

They don't compare...not even close

We have a few dynasty's and a syncrowave 200...Should have went with a thermal arc over the syncrowave..

Justin Olson

Are you refering to something like this:

http://www.thermadyne.com/evol...r=253

I haven't heard about Thermal Arc welders before.

Regards,
Justin

.RTErnie

thermal arc's are nice.

k24em2

In all reality, any of the big name welders (Thermaldyne, Lincoln, Miller, ESAB, etc) will work fine. Your best bet is to see which is the easiest to get service in your area in case you need it. The dealer local to me does primarily Miller equipment, and thats what I have.

Justin Olson

Inverted Welders vs Normal welders. What are the pros and cons?

Pros:
Weight


Cons:
Cost

"Since the advent of high-power semiconductors such as the IGBT, it is now possible to build a switching power supply capable of coping with the high loads of arc welding. These are known as inverter welding units. These supplies generally convert utility power to high voltage and store this energy in a capacitor bank; a microprocessor controller then switches this energy into a second transformer as needed to produce the desired welding current. The frequency of switching is very high- typically at least 10,000 Hz and often much higher. Because of this high frequency, inverter-based welding machines can be much more efficient than transformer-based machines.

The actual IGBTs in an inverter based machine are controlled entirely in software, by a microcontroller, so the electrical characteristics of the welding power can be changed by software in real time updates. Typically the controller software will implement features such as pulsing the welding current, variable ratios and current densities through a welding cycle, variable frequencies, and automatic spot-welding; all of which would be prohibitively expensive in a transformer-based machine but require only program space in software-controlled inverter machine."
http://en.wikipedia.org/wiki/Welding_power_supply