Custom Constant Force Springs

Constant force springs provide a smooth range of motion and a constant load in either extending or retracting direction. Considering the initial position forces, this spring design has no inertia to overcome. Constant force springs are compact and mount easily to existing hardware. These types of springs can eliminate the need for costly and complicated motors, thus decreasing device size and cost.

Building life-saving medical technology requires quality precision springs. John Evans’ Sons (JES) is proud to manufacture custom medical springs and components that meet the highest standards for medical device manufacturers.

We offer several counterbalancing options to assist and/or enhance articulated instruments for the design of medical or dental equipment, including constant force springs, spiral torsion springs, and power springs.

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