Skip to content

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

Original price $5,900.00 - Original price $8,200.00
Original price
$5,900.00 - $8,200.00
Current price $5,900.00
In stock
In stock
In stock
In stock

Need Training on This Product? Book now at this link here.


Sunstone Circle Protection Plan Subscription

The best protection your investment has ever seen! Learn More >

Orion 150s Pulse Arc Welder

The Precision Micro-Welder Technology You Need!

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. 

Key Features

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

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.

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. 

Your Orion 150s is proudly made in the USA

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+


Sunstone's training team is ready to help you master the Orion 150s Pulse Arc Welder Visit our Training Page to learn more.

How Does Pulse Arc Welding 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!

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 on international orders. In most cases, the assigned carrier will notify you of any additional required fees. Thank you!

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare