Engine Driven Welders view all

SAE-300® MP (Perkins®)


Top Features

  • DC From the Start
  • Dual Current Control
  • Temperature Stabilization


Stick, TIG, MIG, Flux-Cored, Gouging



Input ModeInput Polarity
Fuel Type

MSRP: $18,076.70

Where To Buy

Equipment Details


When it comes to pipeline construction and maintenance, you deal with more unpredictable variables than you’d care to count. Adverse weather, natural terrain and regulatory requirements are just a few. Given the natural and man-made uncertainties often associated with your business, you need equipment you can count on to maximize quality and efficiency, minimize repair time and control costs.

The SAE-300® MP multi-process engine-driven welder responds to the numerous challenges that are a fact of life in pipe welding operations. For example, the welder features Temperature Stabilization™, enabling you to “set it and forget it” by eliminating any need for adjustments based on ambient conditions or warm-up period.

With a standard built-in CV output contactor, this engine-driven welder eliminates the need for a separate wire feeder module and the downtime associated with installing it. Additionally, the OCV Boost function can be used to aid starting and low amperage welding. And, a standard on-board block heater is ready to pre-heat the engine for use in cold environments.

Some variables will always be beyond your control, but quality, efficiency and performance should always be within reach – no matter
how long the pipeline or how challenging the job. Eliminate the unpredictable with an engine-driven welder that gives you consistent power and maximum control.



DC From the Start

The SAE-300 MP is powered by a hand-built pure DC generator from the only welding manufacturer providing this proven technology to the market. The all-copper windings and flat DC output ensure a smooth, stable arc that enhances arc control, helping operators keep defects to a minimum to avoid cutouts and costly repairs.


Dual Current Control

No two pipe joints are the same – hi-lo fit-up, out-of-round pipe and gap variations can challenge any bead hand to lay in a defect-free weld subject to 100% x-ray inspection. Getting those results requires tremendous control over the arc. The SAE-300 MP is equipped with dual continuous current control – use the coarse control to set a digging, penetrating arc for root beads or a soft, buttery arc for stacking iron on the fill and cap passes. Then you, or your helper using a remote control, can dial in the fine control to adjust heat input, or arc sensitivity, in response to fit-up and orientation of the weld puddle on the pipe.


Built For the Long Shift

Pipelines are all about mileage – and in many cases, a lot of it – so you need an engine-driven welder that will go farther without having to stop for refueling. Our 16 gallon (60.6 L) tank is almost 50% larger than the competitor’s 11 gallon (41.6 L) counterpart, which translates to longer run times, improved efficiency and greater cost savings. The new heavy-duty stainless steel case and rugged wired or wireless remotes add to the durability and utility of these welders.

Day after day, year after year and decade after decade, pure DC generator machines like the SAE-300 MP have been proven to take the abuse of field welding with the lowest maintenance costs and best resale value among diesel-driven welders.

That’s what you call a true workhorse.


Rated Output
  • 300A DC/32V/60%
  • 250A DC/30V/100%
Output Range
  • 40-350A DC Welding Continuous Control
Generator Output
  • 3000 watts
Type of Engine
  • Perkins® 403F-15T Diesel EPA TIER 4
HP and speed
  • 24.7 @ 1800 RPM
  • 3
Dimensions (H x W x D) 37.1 in x 24.3 in x 62.8 in (943 mm x 616 mm x 1594 mm)
Net Weight 1419.00 (643.66 kg)


1. Coarse Current Control
2. Engine Coolant Temperature Gauge
3. Fuel / Hour Meter Gauge
4. Oil Pressure Gauge
5. Battery Charge Fault Led
6. Engine Fault Led
7. High / Auto Idle Switch
8. Ignition Run/Stop Switch
9. Start Button
10. Glow Plug Cold Weather Starting Button
11. Fine Current Control
12. Wire (Cv) / Stick (Cc) Mode Switch
13. Ocv (Open Circuit Voltage) Boost Switch
14. 15 Amp, 240vac (6-15r) Receptacle 2 Pole, 15 Amp Breaker
15. 20 Amp, 120vac (5-20r) Duplex Receptacle With Gfci Protection
16. Cv Terminal On/Off Switch
17. Wire Feeder Volt Meter Polarity Switch
18. 6-Pin Amphenol® For Wired Remote Control Cable
19. 14-Pin Amphenol For Voltage And Output Terminal Control At Wire Feeder (42vac Not Included)
20. Wireless Remote Control Switch (K4089-2 & K4090-2)



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Remote Output Control – 125 ft
Remote Output Control with 120V AC Receptacles – 125 ft
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Spark Arrestor Kit
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TIG Module
Control Cable for TIG Module
TIG Module Control Cable Extension
Arc Start Switch
Contactor Kit
Foot Amptrol™ - 25 ft. (7.6m) (6 pin)
Hand Amptrol™ Rotary Track Style 25 ft (7.6m) (6-Pin)
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