Miller Multimatic 215 Multiprocess Welder Review
The Miller Multimatic 215 will allow your shop to get more done, with less equipment. Why have three welders taking up space, when one will take care of everything?
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As the name implies the Miller Multimatic 215 multiprocess welder will handle several welding processes with very little configuration for changes. The Multimatic 215 will handle MIG, MIG flux-core, Arc (Stick), as well as TIG welding, all from the same unit. The going price for the Miller Multimatic 215 is less than $1,500 and includes the MIG torch, ground lead, power adapter, Arc lead, and spool adapter (for larger wire spools). If you opt for the kit with the TIG torch, the price will be in the $1,800 range.
Out of the box, this welder can run on 110V or 230V. No configuration is needed on the welder, hence the user just needs to change the plug on the power wire. The Multimatic 215 has an onboard power inverter, and the interface will sense the voltage input. This unit comes with a 2-pound spool of wire. With the spool adapter, the welder can easily switch to the larger 10-pound spools as well.
Check out our All In One Welder video review of this machine to see some real use.
Welding Options and Gas Input
*Caution – be sure to use 100% Argon when TIG welding. And trust us, you won’t like the results of 75/25 mix when you’re TIG welding anyway. Also, the interface will tell you this when you switch the controls to TIG. Remember…dummy proof!
In addition to the dual gas inputs, with the TIG kit, it also comes with an additional regulator for the TIG 100% Argon bottle.
Using the Miller Multimatic 215
Opening the side door of the Miller multiprocess welder allows the user access to the wire spool and adjustments for friction on the wire feed. Stuck to the side door of the welder is a spreadsheet tutorial for help with welding setup and configuration. This is really not even needed, since the digital interface makes it so easy, and will walk the user through the setup.
Miller has taken the guesswork out of the welding process, at least for the beginner/novice and the hobbyist. While testing, we had some 14 gauge sheet metal that we welded, then we moved over to weld on some 1/8” angle iron. Making the change was simple and fast, all being configured on the digital interface.
With knobs on either side of the display, the user can trim the Volts and WFS to their particular desires. The Multimatic does not lock you into a particular number. It just puts you in the range, and you can tweak the setup until you hit the sweet-spot. In our case, with the 14 gauge sheet metal, I turned the wire feed down, just a touch.
Now, ready for welding, run the wire out of the torch and trim the stickout. Make sure not to leave this too long, but don’t keep the stickout too short either. Something in the 1/4” to 3/8” is pretty typical. I like to start with about 3/8” stickout. Attach the ground lead to the sheet metal, pull the welding hood down, and pull the trigger on the torch.
Changing Material Configuration
After welding the sheet metal, I need to weld a bracket for a custom idler pulley. The bracket was 1/8” angle iron, which is much thicker than the 14ga sheet metal we were just welding. Going back to the interface, I pressed “+” button on the right, over the metal thickness until it read “1/8”. The Miller Multimatic automatically changed the Volts and WFS to reflect the thicker metal. Again, this is just putting me in range, I can easily trim this to how I like it. Within a few seconds, I went from welding sheet metal to welding angle-iron
Changing Processes – Easy Peezy
To change to Arc welding is just as easier. With Arc or stick welding, we are back to electrode positive, so the Arc torch fits into the “+” and the work-lead (ground clamp) goes into the “-”. Dial in the configuration using the interface, and we’re ready to stick weld.
Even if you don’t fully grasp electrode positive or negative and when to do what, the interface will help. With no leads connected, you can fire up the Miller Multimatic 215. Select the welding process (MIG, TIG, or Arc), and the digital interface will show you where to connect the leads.
This particular model, Miller Multimatic 215, will not TIG aluminum. If you want to weld aluminum, this will need to be done with the MIG, which will require a spool gun. Spool guns can easily be added to this unit.
Changing processes and materials with this Miller Multimatic 215 is almost laughable. I’m quite confident that I could teach someone to weld with this unit in minutes, even if they have never seen a welder before. I’m not a welder or a teacher, so this is a big claim. The interface is truly that easy, so kudos to Miller.
The price of less than $1,500 (with a rebate, as low as $1,349) and the true blue warranty from Miller make this a great option. We definitely recommend the Miller Multimatic 215. This is now a machine that gets used quite a bit in the Shop Tool Reviews shop, on various projects. Check it out here.