For the special application, Doppelmayr ordered a larger and more open version of the FOGS D40 unit with two working areas, the type and size of which (20,000 mm × 9,400 mm × 6,900 mm) had never built before by Droop+Rein. The travel paths of the multifunctional machining centre are 12,000 mm on the X axis, 4,000 mm on the Y axis and 2,000 mm on the Z axis, with a travel angle of ± 200° on the controlled C axis. The floor plate of the 135-tonne machine measures 4,000 mm × 12,850 mm; the rotary table, driven by two 60-kW threephase motors, has a diameter of 3,000 mm. Doppelmayr had the machine equipped with an eccentric fork-type milling head as well as an angled head and a vertical milling head (each with an output of 40 kW). In 2009, the Bielefeld team built the prototype in the Hohe Brücke factory, which, due to the marshy sub-soil on which it is built, stands on 2,000 posts. Since then, the machine from Bielefeld has been used to machine segments from solid steel that is difficult to work with – the pulley wheels are constructed from four elements plus a centre section. The various components, which measure up to 13 m in length, must be machined to between 20 and 25 μm with a high level of precision in a single clamping position.

The FOGS D 40 has gone down well in its five years in operation in Wolfurt. Klaus Meyer is extremely satisfied with the reliability and availability offered by the machine, and his Production Manager had just this to say to the journalist writing this article: “Tell Droop+Rein that we might want to buy a second one!”