Our Automatic Torch Control (ATC-3) is a compact, lightweight, welding torch height tracking and control system. The ATC-3 untilizes an operator pendant to program and control the Linear Slide Assembly (LSA).   This system is capable of providing independent control of all torch movements in the vertical plane. Employing patented "Thru-Arc™" tracking technology, the system provides automatic torch height control for both GTAW, PAW and GMAW applications. 

The ATC-3 provides automatic torch height and two modes of torch height tracking; AVC for CC Power Source and ACC for CV Power Source.  The entire torch tracking information is derived from the welding arc. The arc voltage and welding current is measured with an external voltage probe and hall-effect clamp on current sensor provided with the system. The two modes allow the ATC-3 to be used for GTAW, PAW and GMAW applications. It also provides a Touch-Retract function for accurate torch positioning at arc start for GTAW applications.

Can perform Auto Height Tracking when in tracking mode or Manual Height adjustments when tracking is turned off.  Provides Torch Height adjustments with 0.001” resolution

The ATC-3 Control provides the necessary control signals to the stepper motor powered slide. At power-up the slide is driven to the upper limit then the torch will be located to a user defined start location. The operator pendant allow the user to define the starting position, tracking reference values and to enable/disable the tracking functions. The ATC-3 will automatically detect a valid arc active condition and will perform the selected torch height tracking function. During the weld the user can enable/disable the torch tracking function.