Did you know that every Johnson-Fluiten G-Series rotary joint is individually tested before delivery? Our commitment to quality results in an extremely stringent testing protocol designed to ensure maximum performance under real operating conditions
Each joint is tested extensively to ensure:
- Perfect seal: we simulate real operation with pressurized water at 10 bar, verifying that the joint is completely sealed and leak-free.
- Resistance to high speeds: the joint is tested up to 10,000 RPM, replicating the most demanding conditions in machine tools.
- Uncompromising reliability:each component is carefully inspected before shipment to ensure long life and consistent performance.
A testing platform for realistic simulations
At our facility, all G Series rotary joints undergo rigorous testing on a highly specialized test stand. Using an operating electrospindle, we are able to faithfully reproduce the conditions of use in the most critical industrial applications.
Check out the video!

The steps of quality testing
1 - Spindle mounting: the joint is installed and properly secured on an operating electrospindle, ensuring perfect alignment.
2 - Hydraulic connection: a pipe is connected with a quick coupler to simulate the actual flow of fluid inside the joint.
3 - Pressure test: water is run at a pressure of 10 bar to test the integrity of the seal.
4 - High-speed test: the electrospindle drives the joint at 10,000 RPM, reproducing real operating conditions and evaluating the stability of the system.
5 - Leak test: using an air gun and a drain hole, we check that the joint is completely sealed.
6 - Final check and approval: only joints that pass all the tests without failures are certified and considered ready for use.

Why is this process beneficial to you?
✔ Maximum operational safety: we reduce the risk of unexpected failure by ensuring reliable and consistent performance.
✔ Less maintenance: a certified coupling means less downtime and reduced costs.
✔ Guaranteed quality: every Johnson-Fluiten product meets the highest industry standards, delivering solutions designed to last.
If you're looking for high-performance rotary joints that are tested and certified for reliability and durability, Johnson-Fluiten is the right choice for you. Contact our technical team to find out how we can support your business with tailored solutions.
WANT TO KNOW MORE ABOUT OUR PRODUCTS?
Our goal is to work closely with our customers to develop reliable, efficient and technically advanced products that add value by improving the process and quality of the final product.
Contact us and one of our experts will be available for any of your needs!
info-jf@johnson-fluiten.com
+39.023394091