MIG Welders

Pro Pulse™ 300—Out of Stock—Order Online or Over the Phone to Reserve a Machine!

Product # 60300P

*All Accessories Sold Separately


We expect to receive new inventory the week of December 14th. If you would like to place an order for one of the machines coming in the week of December 14th, please give us a call at 847-357-0700 or place your order online. If you order over the phone, we will take payment info, but we will not charge your card until the Pro Pulse is ready to ship. If you order online, we will charge your card when we process your online order (either the day you enter the order or the next day).

Build your own Pro Pulse 300 package during our Black Friday Sale and save $600 off the cost of the power source (original price: $4,895.00; sale price: $4,295.00), or trade-in your Pro Pulse 200 or Pro Pulse 220 MTS, and trade-up to a Pro Pulse 300! Trade-in is not eligible for the $600 discount/promotions cannot be combined. Please call us at (847) 357-0700 for trade-in details. Accessories not included with the Pro Pulse 300.

We proudly introduce our newest flagship welding machine—the Pro Pulse™ 300. The Pro Pulse 300 carries on the legacy of its little brother, the Pro Pulse™ 220 MTS, and brings it to the next level. 

You asked us for a true, multi-process welding machine capable of MIG, TIG, and Stick welding, and the Pro Pulse 300 represents our answer to your requests. Not only did we make the Pro Pulse 300 capable of MIG, TIG, and Stick welding, we made the Pro Pulse 300 capable of pulsed MIG, pulsed TIG, and pulsed Stick as well. On a machine of this magnitude, you expect the best of the best, so we designed the Pro Pulse 300 to run on single or 3-phase power from 200V to 575V—with no de-rating in output or duty cycle ever!

The Pro Pulse 300 features the same convenient 8 square inch LCD and easy to understand menu as the Pro Pulse 220 MTS, but we packed the Pro Pulse 300 with even more features. Some of the features include an ST-arc function, I-Cold Pulse technology for production welding of mild steel, single and double pulse (standard and fully adjustable double pulse) in every pulse program and for every material, along with more adjustable hot start function and slope down function for filling end craters, which enables you to weld aluminum with superior control.

Speaking of superior control, the Pro Pulse 300 features a Swiss-made, 4-roll gear drive wire feeder, with encoder, for precise monitoring of the wire feed rate. For aluminum welding, the fully geared wire feeder features individual adjustable pressure on each set of drive rolls. The wire feed system gives you the ability to run 3/64" aluminum wire through a 10' MIG welding gun or through a push/pull gun up to 35'. Because the Pro Pulse 300 puts out such high peak currents, we offer both air- and water-cooled MIG and TIG options.

A relatively light-weight package makes the Pro Pulse 300 portable enough to bring to any job site, so we also included a spool gun option. We designed our USA-made spool gun to be fully compatible with all hot start, slope down, pulse, and double pulse features, and, of course, the spool gun offers synergic remote control features just like our German-made push/pull systems do. No matter what you weld, from the thinnest auto body material to the thickest, multi-pass material in an industrial or manufacturing setting, the Pro Pulse 300 is the right machine for you. With programs to meet almost every need, from dual-shield stainless to pulsed aluminum on a variety of alloys (4043, 5356, 5554), the Pro Pulse 300 will handle every job meeting or exceeding your expectations!

Starts at $4,895.00*

Please call HTP America/USAWeld Customer Service to discuss your accessory options and to finalize your Pro Pulse 300 purchase. You can reach us at (847) 357-0700.

*Price for the power source alone. Accessories and consumables sold separately.


Maximum Output Amperage

MIG: 320
TIG/Stick: 300

Minimum Output Amperage

MIG: 12
TIG/Stick: 4

Maximum Recommended Thickness
*Single pass capacity varies depending on the material
being welded and the settings of the machine.

Up to 5/8"


40% @ 300A (77º F)
100% @ 220A (77º F)
35% @ 300A (104º F)
60% @ 250A (104º F)
100% @ 200A (104º F)

Arc Voltage

13-35 (MIG +/-8)

Open Circuit Voltage


Electronic Overload Protection


Cooling (On-demand, electric fan, variable speed)

 Air, Dual Fan

Wire Spool Capacity
*Up to a 44 Lb. weight capacity.

8" & 12"

Wire Diameter
*Depends on the material being welded (not all wire
can be welded in all sizes).

.023" to .045"

Input Voltage

Single Phase: 208 to 240V
3-Phase: 200 to 575V

Input Amperage (@ max output)

Single Phase: 51
3-Phase, 240V: 31
3-Phase, 480V: 15


50/60 Hz

Wire Feed Rate (In./Min.)

55 to 787

Size (Length x Width x Height)

26-3/4" x 12" x 17-1/4"

*Without wire and cables.

95 Lbs.

CA Prop 65 - For Residents of California
Warning: Welding and cutting equipment, accessories, and fumes can expose you to chemicals, including Chromium (Hexavalent Compounds), Lead, and Nickel, which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, please visit www.P65Warnings.ca.gov.
Customer Reviews
5.0 Based on 2 Reviews
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Filter Reviews:
Larry R.
United States United States
Pro Pulse 300

It's a really awesome machine. Great people to deal with. super fast shipping. I talked to Peter, he knows his stuff. Thanks to USA Weld for a great experience. Larry

HTP America - USA Weld Pro Pulse™ 300 Review
United States United States
What can I say...it's simply a BEAST unlike anything in the same 300A class

So I was one of the first to order one of these bad mamma jammas in June 2018. Where to start..... This is one amazing pulse-spraying MONSTER! I mean it is effortless. With peak amp outputs of up to 600A and who knows how much ungodly voltage (you can dial 40V at most, but on the peaks it may be even higher!), it will produce the most outrageously powerful pulsed-spray arc. You can even do pulsed-spray on steel using C25 gas, that's how much juice it can put out (but it is better on 92/8 though!). Look at other "pulse" MIG videos on YouTube, and you can see spatter flying everywhere. Not this thing. Spatter is nearly non-existent when set-up correctly , except perhaps for the initial touching of the wire when it has to initiate the arc. The manual-double-pulse lets you (if you're savvy enough), set-up your own hi-lo pulse parameters for creating "MIG like TIG" but WITHOUT fear of cold-lap/fusion like the other guys using a measly 25-30% of the amps that they should be using for a particular joint. Just look at the pic where I used manual-double-pulse on 1/4" steel. Those hot blasts of molten steel burnt up my glove pretty much right away. You MUST have good gloves to withstand the heat of a pulsed-spray arc at high amps! Oh, and look at the pic again....see any spatter?? ;-)

HTP America - USA Weld Pro Pulse™ 300 ReviewHTP America - USA Weld Pro Pulse™ 300 ReviewHTP America - USA Weld Pro Pulse™ 300 Review