Miller Multimatic 220 AC/DC Multi-Process Welder
Miller Multimatic 220 AC/DC Multi-Process Welder
Model 907757 · Miller Electric
120/240V MIG, stick and AC/DC TIG in one 56 lb machine.
| Processes | MIG, flux-cored, DC stick, AC/DC TIG |
| Input | 120V or 240V single-phase (MVP plugs) |
| MIG | 30–125 A (120V); 30–230 A (240V) |
| TIG | 20–140 A (120V); 20–210 A (240V) |
| Thickness | MIG to 3/8 in. steel; TIG to 1/4 in. steel/aluminum |
| Weight | 56 lb |
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Call (919) 555-0147Mon–Fri 8–5 Eastern
- Shipping: Parcel or freight depending on weight; we'll confirm it before you order.
- Returns, freight and warranty for this machine
Our take
The Multimatic 220 AC/DC is MIG, stick and full AC/DC TIG in one 56 lb machine. For a small shop that welds steel most days and aluminum some days, it replaces two or three separate welders.
It comes ready to run all three processes: MIG gun, TIG torch with foot control, stick holder and two regulators are in the box. It runs on 120V or 240V with the included plugs.
The tradeoff is duty cycle at full output. For long heavy passes, a dedicated machine runs longer before it needs to cool.
Before you buy
Will it run in your shop?
- Ships with MVP plugs for 120V (NEMA 5-15P) and 240V (NEMA 6-50P).
- Peak input draw is 31.3 A (stick, 240V). Use a 240V 6-50R welder circuit for full output.
- Full output on a generator of 10,000 W or more (Miller).
What's in the crate
- Multimatic 220 AC/DC power source
- Power cord with 120V and 240V MVP plugs
- 10 ft MDX-100 MIG gun
- 12.5 ft Weldcraft A-150 TIG torch
- 13 ft stick electrode holder
- 10 ft work cable and clamp
- RFCS-14 HD foot control
- Two flow-gauge regulators with hoses
- Spool of .030 in. wire
- Two .030 in. contact tips
- TIG accessory kit (cups, collets, tungsten)
- Material thickness gauge
What else you'll need
- Two gas cylinders: C25 for MIG on steel, 100% argon for TIG and aluminum
- Stick electrodes and TIG filler rod
- Spoolmate spool gun for MIG on aluminum
- Helmet, MIG and TIG gloves, jacket
- 240V 6-50R circuit for full output
- Dual-cylinder cart (optional)
Size, weight and shipping
- Made in: USA
- Parcel or freight depending on weight; we'll confirm it before you order.
Full specs
Miller Electric model 907757
| Spec | Value |
|---|---|
| Input power | 120/240V, single-phase, 50/60 Hz |
| MIG rated output, 120V | 105 A @ 19.2 V, 60% duty cycle |
| MIG rated output, 240V | 200 A @ 24 V, 20% duty cycle |
| Stick rated output, 120V | 90 A @ 23.6 V, 40% duty cycle |
| Stick rated output, 240V | 200 A @ 28.4 V, 15% duty cycle |
| TIG rated output, 120V | 130 A @ 15.2 V, 40% duty cycle |
| TIG rated output, 240V | 210 A @ 18.4 V, 20% duty cycle |
| MIG range | 30–125 A (120V); 30–230 A (240V) |
| Stick range | 30–90 A (120V); 30–200 A (240V) |
| TIG range | 20–140 A (120V); 20–210 A (240V) |
| AC TIG controls | Balance 60–80%; frequency 60–150 Hz |
| Wire | .024–.035 in. solid; .030–.035 in. flux-cored |
| MIG gun | 10 ft MDX-100 |
| TIG torch | 12.5 ft Weldcraft A-150 (air-cooled) |
| Foot control | RFCS-14 HD included |
| Spool gun ready | Spoolmate 100 or 150 |
| Dimensions | 17.5 in. H x 11.25 in. W x 21.5 in. D |
| Weight | 56 lb |
Specs come from the manufacturer's current spec sheet. If something here doesn't match the plate on your machine, call us.
Consumables and parts for this machine
The wear parts you'll reorder, so you're not hunting part numbers later.
Freight, returns and warranty
Freight and delivery
Machines over about 150 lb ship by freight truck to the curb; smaller ones ship by parcel carrier. For freight, the carrier calls to set a delivery window, and liftgate and residential delivery can be added to your order. Inspect the crate before you sign, note any damage on the delivery receipt, and report it within 48 hours. We file the freight claim.
Returns
Return terms for this machine are set by the manufacturer and confirmed before you order. Returns need a return authorization. Non-defective returns carry a restocking fee and return freight.
Warranty
Miller True Blue: 3 years parts and labor on the welder; 90 days parts on the MIG gun
Manufacturer warranty terms are linked below. Some brands only cover machines bought from an authorized dealer, so we'll confirm coverage on this machine before you order. If something goes wrong, we'll help you start the claim.