John Evans' Sons

International leader in design and manufacturing of constant force springs, constant force spring assemblies and pusher springs (variable force).

[John Evans' Sons @JohnEvansSons]

John Evans’ Sons is the international leader in engineering and manufacturing of constant force springs, constant force spring assemblies and pusher springs (variable force). We set the standard for world-class precision spring products.

[John Evans' Sons @JohnEvansSons]

In 1890, John Evans designed springmaking equipment that would be adapted to the newest technology of the time: hydraulic power. When the automobile was invented, John Evans laid claim to the original patents for the hydraulic shock absorber.

[John Evans' Sons @JohnEvansSons]

MedTech innovation is booming in spite of supply chain and logistics issues. Keep an eye on these trends in 2022. https://t.co/ZsFTbKrsuf

[John Evans' Sons @JohnEvansSons]

As an organization, John Evans' Sons is proud to be certified to ISO Quality Management systems ISO 9001, ISO 13485 & AS9100. Learn more about why we suggest considering an ISO certification. https://t.co/E8P8wnqnzV

[John Evans' Sons @JohnEvansSons]

What do you get when you partner with a custom spring manufacturer like John Evans' Sons? Read our blog to find out. https://t.co/4HaZVzEzrQ

[John Evans' Sons @JohnEvansSons]

Aerospace has been slower to embrace robots automation than other sectors, however, there's a growing need for robots in recent months. https://t.co/L43ehp7rEl

[John Evans' Sons @JohnEvansSons]

We're looking forward to getting out to some of our favorite trade shows in 2022! Come see us at the following shows. https://t.co/gpdJjXih0o

[John Evans' Sons @JohnEvansSons]

Our SFI Constant Force Balance System uses AAMA qualified springs and is a simple conversion from block & tackle. View our demo on our YouTube channel. https://t.co/oM3I0R9c58

[John Evans' Sons @JohnEvansSons]

In contrast to some manufacturers of the era who formed spring steel solely for the immensely popular “hoop skirt,” John Evans was thinking “diversification”––a strategy that continues to make our manufacturing stand out from the rest.

[John Evans' Sons @JohnEvansSons]

How commercial #aerospace companies can mitigate risk and distress in response to ongoing supply chain challenges. https://t.co/1rY3iAhdnz

[John Evans' Sons @JohnEvansSons]

Need help finding the right spring product? Here are some things to consider regardless of device or application. https://t.co/oSs2AqfPUo

[John Evans' Sons @JohnEvansSons]

Learn about mounting methods for constant force springs on our blog. https://t.co/sd3QTUAKAG

[John Evans' Sons @JohnEvansSons]

John Evans’ Sons is a leader in design and manufacturing of custom springs, metal stampings, motor brush springs, constant force springs, and spiral torsion springs. https://t.co/fXvhsMfPM4

[John Evans' Sons @JohnEvansSons]

FDA is seeking input from #meddevice manufacturers on its process for notifying the organization of supply chain disruptions or shortages. https://t.co/QG4dprRzhI

[John Evans' Sons @JohnEvansSons]

As the world leader in constant force spring technology,
John Evans’ Sons has produced well over 100 million high performance window balance products. https://t.co/ifGYC8DsTG

[John Evans' Sons @JohnEvansSons]

Here are a few design considerations engineers should account for when manufacturing a constant force spring for their device. https://t.co/ZbW3hphAlx

[John Evans' Sons @JohnEvansSons]

These #medtech markets are poised to thrive in 2022 despite COVID-19 uncertainty. https://t.co/KWLKoogX1z https://t.co/hVBaVWBlsJ

[John Evans' Sons @JohnEvansSons]

Reliability is not learned. It's earned. Our QA processes ensure products surpass expectations. https://t.co/QCxUq2YFwO

[John Evans' Sons @JohnEvansSons]

In an article for EEWeb, we reviewed vibration isolation challenges for #electronic equipment, and how helical vibration isolators are one of the most effective and robust solutions to vibration challenges. https://t.co/zFOSEr6cKE