Welding oscillator PM-WMO-120 is designed for lateral oscillations of the PTA or any welding torch to increase the width of a deposited bead.

Supplied together with the control unit WMOCU2.


Welding oscillator PM-WMO-120 is suitable for the following welding processes:
  • Plasma Transferred Arc (PTA / PTAW)
  • Plasma Arc Welding (PAW)
  • Gas Metal Arc Welding (GMAW / GMAWP)
  • Gas Tungsten Arc Welding (GTAW)
  • Flux-Cored Arc Welding (FCAW)

з вертикальним розташуванням комунікацій
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з горизонтальним розташуванням коммуникаций
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Technical data

Mains voltage and frequency1x230 V, 50/60 Hz
Weight-carrying capacity, no more, kg10
Oscillation speed, mm/s0-50
Oscillation width, mm0-100
Dwell time left/right, s0,0-2,0
Total slide travel, mm120
Oscillation unit 254х184х187
Control box240х220х140
Weight, kg
Oscillation unit6,1
Control box4,2


  • Can be integrated to a common PTA machine control system
  • Drive type – stepper motor
  • It is possible to change the width and speed of torch oscillations during surfacing and also the position of axial line of the deposited bead
  • There is the scale with pointer on face panel to control in online the torch position
  • It is possible to adjust in online a dwell time on the edges of a bead
  • When switching-on of oscillations, the carriage starts from the axial line or from one of the edges of a bead
  • When switching-off of oscillations, the carriage stops on the axial line or in one of the edges of a bead
  • The guide rail is reliably protected from welding splatters and powder
  • Available two types of replaceable torch holder* for fixing the torch:
    • for vertical torch
    • for horizontal torch
    • *supplied upon request

Motion trajectories of the PTA or welding torch

Real appearance of the product and its technical data can differ due to constant improvement.