Reduce device Costs and simplify designs with custom constant force spring manufacturing

Here’s why engineers choose our constant force springs:

• Smooth, Uniform Load: Provides a constant load throughout the entire length of travel (deflection).
• Maximum Force in Minimal Space: Strong force yield achieved within extremely small, confined spaces.
• Cost-Effective Design: An excellent solution for eliminating expensive, complex motors, linkages, and deadweights.
• Zero Initial Inertia: Eliminate the “startup lag.” Our springs require no significant force to overcome inertia at the beginning of movement, providing immediate responsiveness for high-precision applications.
• Superior Counterbalance Effect: Perfect for neutralizing gravity in retractable mechanisms, surgical arms, or heavy aircraft doors. By providing a constant load, they allow for effortless manual positioning or reduced motor strain.
• Seamless Hardware Mounting: Designed for easy integration, these springs mount quickly to your existing hardware configurations. This flexibility shortens your design cycle and slashes assembly time.
• Industry Leading Expertise: Built by John Evans’ Sons, a global leader in custom spring design and in-house tooling services.

Applications

Trusted components in critical applications across Aerospace, Medical Devices, Robotics, Window Manufacturing, Gym Equipment, Fire Dampers, and Electric Motors.