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 strong E6010 performance, adjustable arc controls, and a 60% duty cycle at full output for serious production and repair work.

With support for Stick electrodes up to 1/4", dedicated E6010 capability, and both single-phase and three-phase 240V operation, the PowerARC 300ST is a practical choice for pipeline contractors, fabrication shops, farms, shipyards, maintenance departments, and mobile 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 better starts and arc stability.
• Flexible Input Power: Operates on 240V single-phase or three-phase power.
• Portable Inverter Design: High output without the size and weight of a traditional transformer machine.

Key Features

• Compact IGBT inverter design
• Up to 300 amps of DC welding output
• Adjustable Hot Start to improve arc initiation and reduce sticking
• Adjustable Arc Force control 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 model 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 and gas regulator 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

Stick Welding Capacity

• Minimum Electrode Diameter: 1/16"
• Maximum Electrode Diameter: 1/4"
• Supported Electrode Types: Includes E6010 and other common Stick electrodes

Actual minimum and maximum electrode capacity may vary by electrode type and manufacturer.

Lift TIG Capacity

• Minimum Material Thickness: Approximately .025" steel or stainless steel
• Maximum Practical Single-Pass Thickness: Approximately 1/4" steel or stainless steel
• Maximum Practical Multi-Pass Thickness: Approximately 5/8" steel or stainless steel
• Start Type: Lift TIG only
• Amperage Control: Machine panel only; foot pedal operation is not supported

Note: This machine does not provide AC TIG output and is not suitable for TIG welding aluminum.

Power Requirements

• 240V single-phase or three-phase input
• Optional 480V three-phase version available by special order
• Generator must provide clean power with less than 5% total harmonic distortion (THD)
• Recommended generator capacity: At least 15,000 surge watts for single-phase operation

Who Is This Welder 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, and fabrication work where reliability and arc performance matter more than portability alone.

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 TIG torch and regulator must be purchased separately.

Can it TIG weld aluminum?
No. Aluminum TIG welding requires AC output, and this machine provides DC TIG only. Aluminum may be welded in Stick mode using the proper 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. Everlast recommends 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 less than 5% THD and has at least 15,000 surge watts for single-phase operation.