Welding mechanical oscillator PM-WMO-120 is designed for lateral oscillations of the plasma torch at surfacing for the purpose of increase width of surfaced bead for one pass. Depending on the selected cross motion speed of plasma torch movement surfacing can be made or in the common crater, or separate beads.

At surfacing, not discontinuing process, it is possible to change width and frequency of oscillations, and also position of an axial line of the bead.

Switching off of oscillations the slide always stops on an axial line, that helps tune plasma torch position concerning surfaced part.

Oscillator is programmable and can control from the common control system, and from the separate block.

In oscillator it is provided two replaceable swing arms for strengthening the plasma torch - with a vertical and horizontal arrangement of communications.