Welding equipment » Miller » BIG 40

Miller BIG 40 Specifications

Specifications

Welding processMIG (GMAW)
Gun typeSpool gun / portable wire feeder
Primary applicationAluminum and soft-wire MIG welding
CoolingAir-cooled

Miller BIG 40 description

The Miller BIG 40 is a robust handheld spool gun designed for aluminum and soft-wire MIG welding. Built for reliable feeding and stable arc performance, it pairs with portable Miller power sources to deliver smooth, clean welds on automotive, fabrication and maintenance jobs. Its ergonomic design and durable construction make it a practical choice for professionals needing consistent aluminum welding on the go.

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