Success story - For manufacturers of wind turbines, Zahnradfertigung Ott GmbH & Co. KG is a high-requested supplier. The production of ring gears with diameters of 2500 mm and especially internal gears requires a high level of expertise, qualified employees and the right machines, such as the ZP I/E profile grinding machine from Kapp Niles. The solid construction and the large grinding head - the more is here the better – ensure maximum precision.