Milling machine for contouring PVC profiles with 45° cutting. The machine, which is integrated into the window production process with Someco SM series machines equipped with Seamless technology counter punches, prepares the profiles for the subsequent phase of zero bead welding. The CM 1H is equipped with three electrospindles, one of which is used for a cut-to-length knife and two of which can be equipped with different tools to allow efficient contouring even of profiles made of different materials. The machine is programmable on board and can import and execute predefined and optimised machining lists.