John Evans Sons, based in Lansdale, PA, is a renowned international leader in the design and manufacturing of constant force springs, spiral torsion springs, power springs, and various other precision spring products. With over 100 million high-performance window balance products produced since its establishment in 1850, the company serves a wide range of industries including medical devices, aerospace, military, electric motors, robotic design, point of purchase, trucking, and elevator technology.
Triple ISO certified (ISO 9001, ISO 13485, AS9100), John Evans Sons prides itself on providing custom and specialized springs tailored to meet the unique needs of its diverse clientele. With a commitment to outstanding customer service, technical excellence, and continuous improvement, the company's expertise in spring engineering and manufacturing ensures top-quality solutions for various applications across different industries.
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