SpinArc: What’s the Point?

Vincent Velarde Blog 1 Comment

Whether you’ve been “under the hood” yourself or just seen the videos online, Weld Revolution’s SpinArc technology has an undeniable “cool” factor. If you haven’t had the chance to check it out, head over to the YouTube channel (or click the links at the bottom of this article) and take a look!

But the important questions come after that initial “Whoa! You don’t see that every day!” reaction. The real questions are: Why are you spinning the contact tip around at seemingly crazy speeds? What are the benefits? What industries/applications is it good for? And just generally, “What’s the point?”

Looking at Weld Revolution’s three “value drivers” for SpinArc can begin to answer these questions:

1. Joint Reduction

The first value driver for SpinArc is joint reduction. Reducing bevel angles is a no-brainer. You decrease your joint volume, use less filler material, and fill the joint in fewer passes. This means faster, cheaper, welds. Who wouldn’t want that? The problem lies in achieving good side wall fusion in a narrow groove. This is where SpinArc comes in.

By rotating the contact tip at a high rate of speed, the welding wire is actually deflected out towards the perimeter of the weld. This phenomena drives the arc into the side walls of your joint and creates reliable fusion. The effect can be increased or decreased by adjusting the diameter and speed of the rotation.

2. Weld Productivity

By adjusting spin diameter and RPM settings, you can effectively increase the diameter of the weld puddle. This new level of control has a variety of benefits across multiple welding applications.

By spreading out the puddle you are able to more effectively fill groove welds, create more ideal bead profiles for fillet welds, and cover more surface area with less penetration in cladding/hard-facing applications. In all of these cases, in addition to higher travel speeds, the more effective use of filler material leads to higher wire feed speeds and better deposition rates. Less welding time per part increases throughput and saves money!

3. Distortion Control

Weld distortion is a common problem and can require costly rework. It is caused by non-uniform expansion and contraction in the part and is directly related to the heat input of the weld.

The final value driver for SpinArc® is distortion control, and it’s closely tied to the first two. By increasing travel speed and decreasing the total number of weld passes, SpinArc technology allows you to greatly reduce the overall heat input of the weld. Controlling heat input means that SpinArc reduces, or even eliminates, distortion and potentially expensive rework.


So that, more or less, is “the point” of SpinArc. The general idea is to boost productivity without compromising quality, thereby saving you money! If that sounds like something you’re interested in then send us a message on LinkedIn, or shoot us an email at info@weldrevolution.com, or give us a call at (832) 585-1244 and ask us what SpinArc can do for you!


SpinArc Video links:

YouTube Channel

High Speed Arc Footage

Narrow Groove Arc Footage

Vincent VelardeSpinArc: What’s the Point?

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  1. Pingback: Is SpinArc Inherently Faster? | Weld Revolution

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