Everlast PowerARC 300ST – 300 Amp DC Stick & Lift TIG Welder

Industrial welding power for pipelines, fabrication, repair, and heavy-duty field work.
The Everlast PowerARC 300ST delivers up to 300 amps of DC Stick and Lift TIG welding power in a compact inverter package. Built for demanding applications, it combines dedicated E6010 performance, adjustable arc controls, and a 60% duty cycle at full output for serious production, repair, and maintenance work.

With support for Stick electrodes up to 1/4", 240V single-phase or three-phase operation, and an optional 480V three-phase configuration, the PowerARC 300ST is a practical choice for pipeline contractors, fabrication shops, farms, shipyards, maintenance departments, and field-repair crews.

Why Welders Choose the PowerARC 300ST

• 300 Amp Output: Built for demanding Stick and DC TIG welding applications.
• Dedicated E6010 Performance: Optimized for cellulose electrodes including 5P, 5P+, and 5P++.
• Industrial Duty Cycle: Rated at 60% duty cycle at 300 amps.
• Adjustable Arc Controls: Fine-tune Hot Start and Arc Force for improved starts and arc stability.
• Flexible Input Power: Operates on 240V single-phase or three-phase power.
• Compact Inverter Design: Delivers high output without the size and weight of a traditional transformer machine.

Key Features

• Compact digital IGBT inverter design
• Up to 300 amps of DC welding output
• Adjustable Hot Start to improve arc initiation and reduce electrode sticking
• Adjustable Arc Force for improved short-arc performance
• Dedicated E6010 mode for cellulose-based electrodes
• Smooth, stable Stick arc with a wide range of electrode types
• DC Lift TIG mode for steel, stainless steel, and chrome-moly
• 60% duty cycle at 300 amps
• 240V single-phase and three-phase operation
• Optional 480V three-phase configuration available by special order

What’s Included

• PowerARC 300ST Welding Machine
• Stick Electrode Holder with 10' Cable and 35 Series DINSE Connector
• Ground Clamp with 10' Cable and 35 Series DINSE Connector

Important: TIG torch, shielding-gas regulator, gas hose, and TIG consumables are not included.

Ideal Applications

• Pipeline welding
• Structural fabrication
• Heavy equipment repair
• Farm and ranch maintenance
• Shipyard work
• Industrial maintenance
• Portable field repair
• General fabrication

Recommended Materials

• Steel
• Stainless steel
• Chrome-moly
• Aluminum in Stick mode only with the proper electrode

Stick Welding Capacity

• Minimum Electrode Diameter: 1/16"
• Maximum Electrode Diameter: Up to approximately 1/4"
• Electrode Capability: Includes E6010 and other common Stick electrodes

Actual minimum and maximum electrode capacity may vary by electrode classification, manufacturer, welding position, and application.

Dedicated E6010 Performance

The PowerARC 300ST includes a dedicated setting for cellulose-based electrodes. This helps provide the arc characteristics required for E6010 rods, including 5P, 5P+, and 5P++, making the machine a strong choice for pipeline, repair, and field-welding applications.

Lift TIG Capacity

• Minimum Material Thickness: Approximately .025" steel or stainless steel
• Maximum Practical Single Pass: Approximately 1/4" steel or stainless steel
• Maximum Practical Multi-Pass: Approximately 5/8" steel or stainless steel
• Start Type: Lift TIG only
• Amperage Control: Machine-panel control only
• Foot Pedal Support: Not supported

Important: The PowerARC 300ST provides DC TIG output only and is not designed for TIG welding aluminum.

Optional TIG Setup Requirements

To use the PowerARC 300ST in Lift TIG mode, the following equipment must be purchased separately:

• Compatible TIG torch
• Argon regulator and gas hose
• Shielding gas
• Tungsten electrodes
• TIG torch consumables

Power Requirements

• 240V single-phase or three-phase input
• Optional 480V three-phase version available by special order
• 480V model has an estimated six-to-eight-week lead time

Generator Requirements

• Use only a generator certified by its manufacturer as producing clean power
• Total harmonic distortion must be 5% or less
• Recommended generator capacity: At least 15,000 surge watts for single-phase operation

Using an undersized generator or one that does not meet clean-power requirements may damage the welder and affect warranty coverage.

Important Operating Notes

• This machine is intended primarily for medium- and heavy-duty welding.
• It is recommended for steel and stainless steel approximately 16 gauge or thicker.
• TIG operation uses Lift Start only.
• TIG amperage is adjusted from the machine panel.
• A TIG foot pedal cannot be used with this machine.
• The machine does not provide AC TIG output.

Who Is the PowerARC 300ST Best For?

The PowerARC 300ST is best suited for welders who prioritize high-output Stick performance, E6010 capability, and industrial duty cycle over advanced TIG controls. It is a strong fit for pipeline, repair, structural, shipyard, farm, and fabrication work where dependable arc performance and high output are more important than low-amperage precision or remote TIG control.

Frequently Asked Questions

Can the PowerARC 300ST run E6010 electrodes?
Yes. It includes a dedicated E6010 setting designed for cellulose electrodes such as 5P, 5P+, and 5P++.

Can this machine TIG weld?
Yes. It provides DC Lift TIG capability for steel, stainless steel, and chrome-moly. A compatible TIG torch, regulator, gas hose, shielding gas, tungsten, and consumables must be purchased separately.

Can it TIG weld aluminum?
No. Aluminum TIG welding typically requires AC output, and this machine provides DC TIG only. Aluminum may be welded in Stick mode using a suitable electrode and technique.

Does it support a TIG foot pedal?
No. TIG amperage is controlled from the machine panel, and foot-pedal operation is not supported.

Is this suitable for thin sheet metal?
It is primarily designed for medium- and heavy-duty work. The supplied specifications recommend it for steel and stainless approximately 16 gauge or thicker.

Can I run it from a generator?
Yes, provided the generator produces clean power with 5% or less THD and offers at least 15,000 surge watts for single-phase operation.

Does the machine include a TIG torch?
No. The standard package includes the Stick electrode holder and ground clamp. TIG equipment is sold separately.

Can I order a 480V version?
Yes. A 480V three-phase configuration is available by special order with an estimated six-to-eight-week lead time.