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 design, installation, and more. If you don’t find the information you’re looking for, please reach out to our team.

eBooks

Custom Spring Design Guide

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Military and Defense Guide to Shock & Vibration Isolator Equipment

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The Engineer’s Guide to Aerospace & Defense Springs

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Case Studies

How John Evans’ Sons Helped Engineer a Mars Mission

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How John Evans' Sons Helped Engineer a Mars Mission eBook Cover

Blogs

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...

The Spring Behind the Push: Variable Force Pusher Springs for Retail Displays

Retail display systems must maintain consistent product positioning while minimizing manual restocking. In high-volume Point of Purchase (POP) environments, inconsistent product flow can lead to...