stick welder with dyn200

[HAWK]

Blown S-10,

I am partial to a Lincoln Ideal Arc since I learned on one. The old sine wave machine really makes me appreciate the Dynasty 300DX. Why do I say these things? Because side by side comparisons show the D300DX to puddle quicker and weld faster (travel speed) than any of the Syncrowaves. That is not to say the Syncs won't do the job. They will, but the arc to puddle time is longer and the travel speed is slower. Lots of people like the Syncrowaves and are not inclined to latch onto the newer inverter technology. That's why Miller still makes them.

[Sberry]

I was really refering to a Max 150,, ha,, they are just so cute. But, yes, if I was to spring for something richer it would be the dyn especially if one was to do in house work. I can see in hospitals, etc or anywhere one might want to use tig even just due to fire or finish hazzards it would be great and would work excellent with extension cords. Someone here talked about all his onsite handrail etc being tig, the finish was great and no clean up, no splatter on location. He figured it was a big time saver.

[ASKANDY]

Dynasty/Sync facts

The FACT that the Dynasty will out weld the Syncrowaves or any standard transformer squarewave unit is true.

It goes this way.

The Syncrowaves and others that have copied our technology (red) make their squarewave output with SCRs and a large inductor coil placed internally (electrically) in the SCR bridge. This will squeeze and drive the sinusoidal wave more into a squarewave. When the machine is set to maximum penetration, this will give us an imbalance of around 65-68% electrode negative (penetration). When doing this, the machine draws gobs of primary power because of the imbalance imposed on the primary. All primary draws listed for machines are at a 50% or balanced wave. So, let's say your breaker can handle the 150Amps to feed that beast at 68% balance, the penetration is spead across a 60 HZ arc width! The Dynastys make their AC artificially and we start them at 75% penetration or higher, and at a higher frequency (average 120-150) that pushes all that current into a tighter area hence alot more penetration at the same amperage. The frequency will determine arc width and if you spread say 200 amps across a wide area like any 60HZ machine, less penetration depth.... now run the freq up to 120, twice that of a 60HZ unit and your penetration is much deaper and the arc is easier to control.

So, what a Sync needs to weld at 250 amps, a Dynasty will easily do at 200 and at much less input primary cost.

Hope this helps.

Andy

[Blown S-10]

Andy. that was the answer i was looking for. thanx

to say a 200dyn will, as you say, "easily" equal a 250syncro, is impressive, to say the least. if in fact it is true (no offence, i'm a pecimist). seeing as how it can run on 110v lends credibility to your statements.

this HZ & arc width you speak of. care to give a statement, specs, on the shape and actual width of these arcs.

[ASKANDY]

On 60 Hz, the Sync 250 at 200 Amps has an arc width of say around 3/8".
At 120Hz, double the Sync, the Dynasty width should be 1/4 or less. At 250Hz, I can run the dynasty at 1/16" or smaller! I can weld the edge of a 1/8" coupon without pulling in the other side. With the wider arc, the 60Hz machines want to pull the aluminum in from around the arc and if welding at an edge or corner, it pulls it in. When you turn the freq up, it doesn't pull in the surrounding metal to the puddle.
Now on Steel, the Sync 250 Amperage output is higher than the Dynasty and will weld thicker material but with the arc adjustments that the Dynasty has on aluminum, the Dynasty is better. On steel, the Dynasty does have a finer arc on the low end and better resolution for thinner material. Part of thisis due to how the Dynasty makes the DC over the Sync 250. The Sync makes DC from the AC out of the wall at 120 times a second. The Dynasty makes DC from it's inverter engine at 100,000 times a second and therefore is much smoother.
The other thing the Sync has over the Dynasty is duty cycle. At 200amps the sync 250 is 60% and the Dynasty is 20%. I think this is conservative as I have not had any issues from heavy users. I prototyped more of these units than the rest of the whole country and even put them in production companies that made aluminum racing radiators and aluminum seats. They perform great.
On 115 power you will not get the whole 200 amps from this unit. It will limit the output so you won't blow breakers. I have run it on 115 and weld 3/16" aluminum with little or no issues. Couple this with a coolmate 3 watercooler and you can tig the day away.

Hope this helps.

Andy

[fun4now]

download tig book

i just read about this in the tig book i got with my student pack
if you go to the downloadable tig book you will find it on pg. 11,12,13

i atached a pic of that part but dont know if you will be able to read it but the pic's speek for themselves

hope this helps

[fun4now]

Lol

andy
looks like we posted at the same time
yours is a bit clearer than mine though


how do you find info on the cool 3 i cant find it on the miller site ?

[Bendaman]

If you go to Miller home page, click on products. select tig, on tig page it
says "SElect by product name". If you select Dynasty 200 DX, down on
lower left of page is "More product Info", click assessories, the coolmate 3
is listed here (page down a little bit) . I hope this is what your looking for.

[HAWK]

James,

Coolmate 3