Polish company Koordynacja uses CNC milling to automatically manufacture orthopaedic insoles. To maintain total precision, foam must be securely vacuum clamped before forming. This article takes a look at how the process works and the pump that does the job. In addition to a podiatric clinic, Koordynacja also develops and markets orthopaedic devices. The latest development is a CNC milling centre, which reads patients' data and automatically manufactures orthopaedic insoles from foam material with the required dimensions and density. During the milling process, the foam material is clamped securely to the machining table by vacuum. Mariusz Strzecha, the proprietor of Koordynacja and developer of the milling centre, chose a Busch Seco rotary vane vacuum pump for the vacuum supply. Numerous trials with other vacuum generators were conducted, but only the Seco system met all the requirements for series production.
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