MA-20 Arc Control
Our most popular controller, the MA-20 features a PWM power supply and adjustable oscillation speeds from seven per minute to 30 per second. Independently controlled left and right dwell settings create a weave effect, allowing maximum flexibility when working with an uneven work piece. A stabilize/oscillate switch allows you to disable the speed and dwell controls while the position and amplitude controls remain operative. Final taper gradually reduces magnetic field during welding down-slope.
All probes include simple, secure mounting provisions and can attach to most welding torches in minutes. Water-cooling hoses (where required) and probe cables are part of each probe assembly. See the controller/probe compatibility chart for system details.
The MP-1 is a single-tip, water-cooled probe that adapts to conventional torches. The MP-1 works well in tight clearances and is primarily used to weave the arc across the seam or to stabilize the arc.
The dual-tip MP-2 slips over a conventional TIG torch and can be used either for cross-seam weaving or in-line weaving. In-line weave is primarily used in tube mills to preheat the tube, giving increased weld travel speeds.
Use the MP-22 probe with the MA-20 control unit only. This twin-tip side-mount unit is capable of delivering the full 600 gauss magnetic field to the welding arc area. Though normally used in an air-cooled mode, if necessary, the MP-22 can also be water-cooled.