John Evans' Sons

John Evans' Sons is the international leader in design and manufacturing of constant force springs, constant force spring assemblies and pusher springs (variable force). Custom design, in-house tooling and precision manufacturing, combined with a varied stock spring selection allows us to serve a wide variety of applications from military to medical, robotics, high-tech & aerospace. We provide impeccable service from start to finish and set the standard for world-class precision spring products

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1 Spring Avenue
Lansdale, Pennsylvania 19446
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