Walter Tools

With energy towards more cost efficiency


The mainframe is the central component of the generator nacelle on a wind turbine and weighs up to 70 tons. Flange-mounted on the mainframe are the gearbox, the rotor bearing and the yaw bearing for connection to the tower. The generator frame holds the generator for producing electricity. Mainframes are exposed to permanent and high dynamic loads. Their manufacture is therefore subject to the most rigorous of quality and reliability requirements.

We have the metal cutting tools for machining these components with precision.

Here is a selection:

  • Walter Valenite helical cutter F4238 for roughing the main bores
  • Walter Titex Alpha® 4XD drill for cutting the vent holes
  • Walter Valenite side and face mill for roughing the contact surfaces and rear sides