Blade-pitch adjustments are one of the most critical functions of wind turbine operation. The giant bearings in the adjustment mechanism can now be manufactured with accuracy typically reserved for small parts, using a new vertical turn-grind machine from Swedish builder KMT Lidköping. The machine combines advanced motion systems with Renishaw optical and magnetic linear and…

 The CM6200 Portable Circular Milling Machine expedites on-site machining of large flanges from 73.5 to 199-in. (1866.9 to 5054.6 mm) diameter. It can mill the extremely tight flatness tolerances required for wind tower flanges as well as a surface finish of 63Ra (1.6Rm). The circular mill can be configured for milling or single-point machining as…