300820 - Miller S-74 MPa Plus Swingarc Single Feeder 16ft Boom System

Advanced Wire Feeding with Extended Reach

The Miller S-74 MPa Plus Swingarc™ (300820) is a premier single-wire feeder system designed to optimize industrial welding environments. Engineered for heavy manufacturing and fabrication, this system combines the advanced control of the S-74 MPa Plus feeder with the logistical advantages of a 16-foot Swingarc boom. The boom configuration consists of a 12-foot boom and a 4-foot feeder arm, providing a substantial radius of operation that allows welders to access large weldments without constantly repositioning the power source. This setup significantly improves shop floor safety by keeping cables elevated and out of the way, reducing tripping hazards and preventing cable damage from forklifts or other machinery.

At the heart of this system is the S-74 MPa Plus control, which offers sophisticated synergic capabilities. When paired with compatible Miller power sources like the Invision™ MPa or XMT® MPa series, the feeder unlocks advanced processes such as Pulsed MIG and Profile Pulse™. The digital interface allows for precise setting of wire feed speed and voltage, while the four-roll, gear-driven drive system ensures positive wire feeding with zero slippage, even over long distances. The system is also capable of dual scheduling, allowing operators to toggle between two distinct welding parameters using the gun trigger, streamlining the workflow for complex parts requiring different heat inputs.

The unit comes factory-equipped with a heavy-duty Bernard™ BTB Gun rated at 400 Amps, ensuring it is ready for high-amperage applications right out of the box. The inclusion of Centerfire™ contact tips and .035/.045 inch drive rolls covers the most common wire diameters used in industrial steel fabrication. Furthermore, the MPa Plus control is fully compatible with AlumaPro™ push-pull guns, making this system a versatile choice for shops that also fabricate aluminum. The counterbalance design of the boom ensures that the gun weight is neutralized, drastically reducing operator fatigue during long shifts.