Sunstone Welders Argon Tank Refill

Sunstone Welders Argon Tank Refill

Authorized Dealer | Full Vendor Warranty Included

$399.00
$399.00
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Sunstone Welders Argon Tank Refill

Sunstone Welders

Sunstone Welders Argon Tank Refill

$399.00
Sunstone Welders Argon Tank Refill

Sunstone Welders

Sunstone Welders Argon Tank Refill

$399.00
  • Description
  • Why Buy From Us

Argon Tank Refill - Premium Argon Gas

If you've never ordered a tank from us before, please click here.

Note: the price of the refill includes a $270 deposit that will be refunded once we receive your previously purchased argon tank. The final cost per refill will be $139 after the refund.

UPS Ground Shipping to Continental US States Only, No Alaska or Hawaii.

Argon is used as a shielding gas in Sunstone's Orion Welding Systems. During the welding, process metals are exposed to temperatures of upwards of 7000 Degrees. At these temperatures, most metals become liquid, which allows the formation of the weld. Argon is used to protect the molten pool of metal against elements in the Atmosphere including Oxygen, Nitrogen, and Hydrogen. These elements cause reactions with the liquid weld pool, such as porosity and increased weld spatter. Argon also plays an important role in maintaining Arc stability, which leads to increased weld penetration, better filler wire transfer, and better weld appearance.

Sunstone's Premium argon is 99.996% pure Argon (Argon 4.6). Pure Argon refers to the gas being just Argon, and not mixed with another gas.

About How Long Should My Argon Tank Last?

It depends on a number of different factors, such as frequency of use, pressure setting, and pre/post flow settings. Sunstone's premium argon comes in an 50 scf tank, which is the most common size for use with Sunstone's Orion Welding Systems. A 50 scf tank will last 6-9 months on average, depending on use.

Argon Regulator

If you need a replacement regulator please click here to order the AGR 2 regulator.

"AGR Inline" regulator will not work with these tanks

What is The Recommended Argon Pressure?

Sunstone's Orion Welding systems work best at around 10 PSI. The pressure can be adjusted depending on the workpiece and how far the electrode protrudes from the welding stylus. The further out the electrode, the more argon pressure will be required in order to get proper coverage.

Argon Safety Data Sheet

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At Machine Horizon, we believe that powerful machines drive progress. Our mission is to make advanced technology accessible to creators, engineers, and businesses across industries—from precision CNC and milling to farming, printing, and laboratory equipment.

We’re dedicated to providing reliable, high-performance machines that help you produce, build, and innovate with confidence. Every product we offer is carefully selected for its engineering quality, efficiency, and long-term value.

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Our brand is built on a deep respect for craftsmanship, performance, and reliability. We understand how important the right equipment is to your success—that’s why we focus on machines that combine innovation with lasting durability. From small workshops to large production facilities, Machine Horizon provides solutions that help you work smarter, faster, and better.

Trusted Experts, Curated Brands


We partner directly with industry-leading manufacturers across multiple sectors to ensure every product meets our standards for quality and performance. Our curated selection means you can shop with confidence, knowing each machine is backed by expert support and full manufacturer warranties.

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With Machine Horizon, you don’t just buy equipment—you invest in performance, precision, and long-term reliability

Frequently Asked Questions

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Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
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Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
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