951779001 - Miller 20 Series Basic Wire Feeder Package with Bernard BTB 400A Gun

Industrial 4-Roll Wire Feeder for MIG and Flux-Cored Welding

The Miller 20 Series Basic Wire Feeder (951779001) is a heavy-duty industrial solution designed to replace the legacy S-22A and S-24A models. Engineered for manufacturing, fabrication, and training environments, this feeder utilizes a robust four-roll, gear-driven drive system. This design ensures positive wire feeding performance, minimizing slippage and bird-nesting, particularly when using flux-cored wires or feeding through longer torch cables. The unit operates on standard 24 VAC input power, making it compatible with a wide range of Miller constant voltage (CV) and DC power sources equipped with a 14-pin receptacle.

This package is the "Basic" configuration, focusing on essential industrial controls without the complexity of digital meters, making it a cost-effective choice for rugged shop environments. It features a broad wire feed speed range of 75 to 750 inches per minute (IPM), accommodating material thicknesses from thin gauge sheet metal to heavy structural plate. The feeder supports wire diameters from .023 inches up to 5/64 inches, providing versatility across MIG (GMAW) and Flux-Cored (FCAW) processes.

Key operational features include an adjustable burnback control, which prevents the wire from sticking to the weld puddle or contact tip at the end of a weld, and a trigger hold function. The trigger hold capability allows operators to release the gun trigger during long weld seams, significantly reducing hand fatigue and improving overall productivity. The unit is housed in a durable 16-gauge sheet metal case, built to withstand the physical demands of industrial workspaces.

Compatibility and Installation: The 951779001 connects easily via the included 10-foot 14-pin interconnecting cord. It comes factory-equipped with a Bernard BTB 400A MIG gun (Q4015), ensuring the system is ready for high-amperage applications immediately. The quick-change drive roll system simplifies setup, allowing operators to switch between wire sizes without tools.