John Evans’ Sons manufactures custom and specialized springs for a variety of applications. Browse our comprehensive resources below to learn more about our offerings, spring engineering, installation, and more. If you don’t find the information you’re looking for, please reach out to our team.
Certifications
eBooks
Custom Spring Engineering Guide
Learn More
Military and Defense Guide to Shock & Vibration Isolator Equipment
Learn More
The Engineer’s Guide to Aerospace & Defense Springs
Learn More
Brochures
Case Studies
How John Evans’ Sons Helped Engineer a Mars Mission
Blogs
Beyond Compliance: What ISO 13485:2016 Means for Medical Spring Quality
When a spring falls out of specification in a surgical robot, it can cause a field failure, a recall, or worse. That risk is why...
Beyond the Certificate: What AS9100 Means for Aerospace Spring Quality
For an aerospace spring buyer, a supplier's AS9100 certificate can look like a formality—a document to check off during vendor qualification. In practice, the standard...
Improving Trailer Tarp Longevity with Heavy-Duty Spiral Torsion Springs
Fleet operators depend on resilient hardware to transport loads safely over long distances. Spiral torsion springs are used to support the reliable deployment of trailer...
