Should I Weld the End of a Flexible Shaft After Cutting It?

If you’ve ever had to shorten a flexible shaft, you may be wondering whether welding or soldering the cut end is necessary. The short answer is: it depends.

When Welding Is Not Necessary

If you’re working with a high-quality flexible shaft, especially one with a solid core that’s been precision-wound using spring-grade steel in opposing directions onto a single mandrel, then welding or soldering is usually not required.

These shafts are engineered to maintain their structure even after being cut. In most cases, you can simply slice the shaft to your desired length, attach your tool or chains, and get back to work — no extra steps needed.

Important Note About Shaft Quality

Not all flexible shafts are made the same. The construction and materials used play a major role in how a shaft behaves after being cut. Shafts like the ones we provide have been heat-treated at specific temperatures and cooled in a controlled environment to achieve their unique spring-like properties. These treatments help ensure durability and flexibility during demanding jobs.

Why Welding Could Be a Problem

Welding or soldering a high-quality shaft can actually compromise its performance. The heat from welding may alter the shaft’s metallurgical properties, reducing its flexibility or weakening the material over time.

Conclusion

Before reaching for a welding torch, consider the design and quality of your shaft. If it’s well-made, cutting it cleanly with an angle grinder is all you need to do. You’ll save time, avoid unnecessary risks, and keep your shaft in top condition.

Please follow this link to see the video we’ve made on this topic.

Have questions about your shaft or need help choosing the right one? We’re always here to help.