Auto-Line Technology - MillerWelds

Experience the Freedom of Auto-Line™

Auto-Line™ Power Management Technology puts you in control of the primary power.  Now, primary power management begins at the plug and ends in your wallet.

  • Better Weld Quality, Uninterrupted Production
    Rock steady arc even during fluctuations in primary power.
  • Universal Location Flexibility
    Permits direct connection to almost any type of input power—115-575 VAC (varies by product), 1- or 3-phase, 50 or 60 Hz.
  • Draws Fewer Amps
    Permits more welding machines without boosting incoming service.
  • Exceptional Electrical Efficiency
    Helps your welding machine pay for itself through lower utility bills and potential for rebates.
  • More Welding Output on 115V Primary
    You get the max output for a given primary current draw. As a result, machines like the Maxstar 150 can produce 30% more welding power than competitive welders on 115 V primary.
The Auto-Line circuit boosts primary power to a higher, constant voltage. Even if incoming voltage varies widely, the circuit ensures a rock-steady welding or cutting arc.

NOTE: The input voltage range may be different for each product. Refer to the product Spec Sheet for the specific input voltage range.