Spin Welding

Servo-driven spin welding designed around your application

Configurable, servo-driven spin welding that meets your needs

Whatever your application, our welders are the perfect choice. That’s because we configure each machine to work specifically with your parts. Taking into consideration material, joint design, size, and more, we customize the solution to meet your needs.

How does spin welding work?

Spin welding is a method of joining plastic components together with surface friction concentrated in a circular weld joint. One part is spun relative to another and force is applied, causing the material to heat and melt. The spinning process stops and the parts continue to be pressed together while they bond together.

Grey spin welding animation
Blue arrow circle


One component spins and causes surface friction against the fixed component.

Red arrow circle


Friction between the two components generates heat and causes the contact surfaces to melt.

Green arrow pointing down


Spinning stops and the weld joint resolidifies under pressure.

A powerful solution

To make things easy for you, we start with a powerful spin welding machine that we customize just for you. It is both scalable and integrable, so it is a perfect solution for manufacturers and integrators alike. Depending on what you need, we configure the torque and force output to weld parts of all shapes and sizes.

Full view of benchtop spin welder machine

Benefits of an Extol Spin Welder

Process Control

Easily optimize the welding speed, feed rate, and force for a strong, hermetically sealed part. Our dual servo control system makes it possible.


Get all the power you need. We specify the torque and force for each spin welding application so you always have the power you need.

Easy to Operate

Easily understand your process and make changes on the fly when you need to. Our comprehensive and intuitive graphical interface makes for easy setup and even easier operation.

Learn how to design for spin welding.

A proper joint design is critical to achieving a strong, leak-proof weld with minimal flash and a wide process window. Follow our easy-to-use guidelines to optimize your part design for spin welding.

Learn more about spin welding on our blog.

Plastic Joining: Make or Break Factors

Plastic Joining: Make or Break Factors

“What technology should I use to join my application?” is one of the most common questions we get from customers looking to ensure the best performance and durability for their project. Unfortunately, there’s no one-size-fits-all answer to that question. Several factors go into whether or not an application is compatible with different plastic welding technologies, and understanding them is key to making an informed decision.

read more
Designing for Strength: What to Consider in Plastic Part Design

Designing for Strength: What to Consider in Plastic Part Design

One of the more difficult questions I get asked by our customers is how to optimize assemblies for strength. This is an incredibly complex question but an important one when it comes to product development. Simulations like Finite Element Analysis are always a helpful tool, but FEA only provides some of the information, not all of it. Here are some questions to begin with during the development process

read more
The Guide to Switch from Adhesive Bonding to Plastic Welding

The Guide to Switch from Adhesive Bonding to Plastic Welding

In manufacturing and product assembly, choosing the proper joining method is critical to ensure the end product’s strength, durability, and efficiency. Adhesive bonding is a popular method for assembling plastic parts. But as product demand increases, the need for faster and more cost-effective joining methods arises. Plastic welding is a popular alternative to adhesive bonding that produces more durable, reliable, and cost-effective assemblies.

read more
3 spin welding design mistakes to avoid

3 spin welding design mistakes to avoid

Spin welding is a pretty straightforward process. You spin one plastic component against another and the friction between them causes the material in the weld joint to melt. Even with a welding process this simple, it’s easy to make design mistakes that will cause headaches later. Here are three common mistakes that you should always avoid.

read more
4 spin welding tips to think about

4 spin welding tips to think about

Spin welding is a really good method for joining thermoplastics. It’s easy to understand, the tooling is simple, the strength results are impressive, and the process is really robust. Keeping those results consistent and managing weld flash control can be a challenge, however.

read more
Two opposed vortex spin welders

Configure the spin welder you really want.

With a custom spin welder, the possibilities are endless.
We design a solution around your application to meet your specific needs.

Request a quote for a spin welder.

Tell us about your application and request a quote. Whether you want an integrable spin welding head, a standalone machine, or custom automation, we’ve got you covered.

Let us know what you need.