CNC Technology in Spring Forming Enables Flexible Manufacture.

The advantages of using CNC technology on spring winding machines is particularly apparent when manufacturing complex spring shapes and frequently changing series. A numerically controlled multiple winder is particularly flexible in operation and can manufacture springs having the most diverse shapes. To position the forming tools, there are hydraulic servo controls. As a result, it is possible to keep the dimensional deviations of the springs to within plus or minus 10 mu m. A regeneration system continuously reconditions the hydraulic fluid and keeps the compressed oil used to control the bending operations free of impurities.