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Orion 150s Pulse Arc Welder - Our best selling model!

Original price $5,900.00 - Original price $7,900.00
Original price
$5,900.00 - $7,900.00
Current price $5,900.00
in stock, ready to be shipped
in stock, ready to be shipped
in stock, ready to be shipped
in stock, ready to be shipped
Request a quote

We Deliver Worldwide

Unless indicated otherwise in the Acknowledgment, Delivery shall be made EXW (Incoterms 2010), Shipping Point, including without limitation, freight, and insurance costs. If no delivery terms are specified on the Acknowledgement, the method of shipping will be at the sole discretion of Seller. Unless directed in writing otherwise by Buyer, full invoice value will be declared for all shipments.

The Orion 150s boasts a power potential of up to 250 joules of pulse-arc weld energy. While powerful, the 150s is perfect for low power needs as well—yielding as little as 1 joule of energy. Whether an application requires high power welding needs or intricate, precise welds around precious components, the Orion 150s offers a versatile, compact, and affordable welding system in an easy-to-use package.  

The Precision Micro-Welder Technology You Need!

The Orion 150s is the ideal welding tool for any micro-welding application. The 150s welders can be seen in laboratories, universities and research & development institutions around the globe.

Key Features

Touchscreen-Icon.png Touchscreen Simplicity. All Orion welders are controlled digitally using your finger. No clumsy, analog knobs!
Energy-Control-Icon.png Digital Energy Control. Choose how you want energy delivered to your workpiece for better creative control.
Power-Range-Icon.png Broad Power Range Precision. Dial the power down or up, in one-tenth of a Joule increments, from 0.2 to 200!
Weld-Speed-Icon.png Multiple Weld Speeds. For joint sealing, choose to weld as fast as one weld every five seconds with the 200i.
Customer-Service-Icon-website.png White-Glove Customer Service. With more than 15 years of experience, we can answer your questions.

Certified Safe!

Most Orion micro welders are ETL and CE certified now or in the process of becoming certified.  ETL certification includes ASME, ASTM, ANSI, CSA, NFPA, NOM, NSF, and UL testing. 

Made in the USA Quality

All Orion micro welders are proudly made in the USA. When you purchase an Orion micro welder you can be confident of welder quality and safety—and support American workers.

Friendly US-Based Customer Service

Help is just a phone call away! In minutes you'll be speaking with a US-based, native-English speaking and experienced customer service representative ready to solve your welding challenges. Call or text +1 801-658-0015. Our customers love our products but they rave about our service!

A Brand You Can Trust

Sunstone has been manufacturing micro welders for more than fifteen years! We're constantly making improvements and adjustments to our customers' benefit. When you choose an Orion micro welder you can be confident in quality, safety, and reliability.

Continuously Improving to Serve You

As a certified ISO 9000/2015 organization, Sunstone is continuously improving processes and procedures that result in higher quality and the absolute best customer service.

Orion 150s Pulse Arc Welder User Manual

Orion 150s Pulse Arc Welder Data Sheet


Power Supply Footprint (L x W x H) 30.5x12.7x25.4 cm
Total Weight 19.9 kg
Input Voltage 100-240 VAC (AUTO DETECTED)
Energy Range (Joules) 1-150 J
Estimated Weld Spot Diameter Range ≈ 0.5 - 3.5 mm
Display (Touch Screen) 20 cm
Weld Speed 1 weld/0.3 seconds
High Frequency Agitation Options Multiple
Available Power Settings 280
Save Settings Spaces 1000+

How Does it Work?

Electrical Energy – Plasma Discharge

Micro TIG/Pulse Arc welding uses electrical energy to create a plasma discharge.  The high-temperature plasma, in turn, melts metal in a small spot. This process takes place in milliseconds. The process is clean and very controllable – perfect for intricate and minute welding applications on precious and non-precious metals!. Filler metal can also be added to build up joints and create strong and reliable weld “beads”, or weld seams.

Two in One Combo

The Orion is a Micro TIG (also known as Pulse-arc) welder and a capacitive discharge resistance welder in one. This combination of abilities allows for infinite creative possibilities.  In its "Arc Mode" (micro TIG/pulse-arc welding), the can be used to perform permanent welds, add metal, and do a variety of other amazing and time-saving applications. In its "Tack Mode" (capacitive discharge resistance welding), the can be used to temporarily position parts before welding or soldering.

The Basic Principle of the Orion Welding System is very simple.

1.) Attach The Grounding Clip

2.) Use the Specialized Microscope that is focused on the Welding Electrode Tip.

3.) Simply Touch the workpiece to the electrode and a weld is triggered.

4.) A Perfect Weld Every Time!

Included Accessories

Every Orion s-Series Welding System includes the following items:

sunstone-welders-orion-plug.png Power Cord
(International Converter Included)
sunstone-welders-orion-grounding-cables. Alligator Grounding Clips
(2 Count)
sunstone-welders-orion-stylus.png Stylus Hand Piece
(Pre-Installed with 1.0mm Collet)
sunstone-welders-orion-ring-clamp.png Jump Ring Pliers
(2 Count)
sunstone-welders-orion-electrodes.png Tungsten Electrodes
(5 - 1mm)
sunstone-welders-orion-microscope.png Shuttered Microscope
(Mounted on Articulating Arm)
sunstone-welders-orion-argon-tub.png Argon Tubing
(1/4″ OD Clear Argon Tubing)
micro-tig-welder-pulse-arc-welder-access Microscope Eye Covers
(1 Set) Hex Wrench Set
(Every Hex wrench used on the Orion included)
sunstone-welders-orion-electrode-collet. 1.0mm Collets
(For use with Orion Tungsten Electrodes)
sunstone-welders-orion-foot-pedal.png Foot Pedal
(Used to precisely trigger welds)
micro-tig-welder-pulse-arc-welder-access Fiberglass Brush
(Used to clean blackness from weld area)
sunstone-welders-orion-diamond-disk.png Diamond Disc
(For Use with any Rotary Tool to Sharpen Electrodes and Clean them)

Needed Accessories

Got%20Gas.jpg Argon Gas
Click here to learn more or add to your cart

1589315368680.png Argon Gas Regulator
Click here to learn more or add to your cart



Sunstone's training team is ready to help you master the Orion 150s Pulse Arc Welder for any particular application, like permanent jewelry, Visit our Training Page to learn more.

Return Goods Policy

Seller’s products may be returned to Seller for credit within thirty (30) days of the shipment subject to the following conditions.

Sunstone offers a 30-day return policy on all products. Before sending a product back please contact Sunstone to receive an RMA number. The RMA number should appear clearly on the outside of the package. Customers are refunded via check. Please note that a 10% restocking fee will apply to all returns. A 30% restocking fee will apply to all 3rd party products (laser welders, laser engravers, PW - AC Welders, and AVIO products). Additionally, all 3rd party products must be insured when sent back to Sunstone at the buyer’s expense. In some cases, a merchant fee may apply. Equipment damaged by improper use or insufficient shipping precautions will be charged additional fees.

*DADO Laser Welder – No cash refunds available for the dado laser welder. However, The Dado Laser Welder may be returned within 30 days for credit towards another Orion or Sunstone product.

*Argon tanks have a $35 restocking fee, the tank must be emptied and left open with the protective cap put in place. All hazardous material and compressed gas stickers need to be removed from the packaging as the empty cylinder is not hazardous and doesn't contain compressed gas.

*Refunds will not be issued for services that have already been rendered such as shipping, calibration, or trainings.

Shipping outside the USA?

Sunstone ships welders all over the world every day. Kindly note that Duties and Taxes are not calculated nor collected by Sunstone. In most cases, the assigned carrier will notify you of any additional required fees. Thank you!

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