Bell Steel required only one employee to oversee the solar array post project and because the Miller XMT 450 MPa machines operate at 100 percent duty cycle, that employee required breaks before the machines, which vice president Brandon Bell said ran 24 hours a day. 

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Pulsed MIG welding, metal-cored wire and side beam welding system provide boon for structural steel fabricator 

Bell Steel required only one employee to oversee the solar array post project and because the Miller XMT 450 MPa machines operate at 100 percent duty cycle, that employee required breaks before the machines, which vice president Brandon Bell said ran 24 hours a day. 

The team that helped implement the new technology at Bell Steel included representatives of Bug-O, Miller Electric Mfg. Co. and Hobart Brothers, and Praxair. 

Bell Steel’s investment in the XMT 450 MPa machines allowed them to complete over 650 inches of weld, per solar array post, in just 12 minutes compared to two and a half hours by hand. 

The Miller XMT 450 MPa provides 100 percent duty cycle, along with Pulsed MIG programming capabilities that allows Bell Steel to operate larger diameter (1/16 inch) wires in order to increase travel speeds and productivity. The machine also provides the company with greater arc control and a fluid weld puddle to create a flat weld bead ready to go straight into the galvanizing process. 

Since realizing the benefits of metal-cored wire (less spatter, higher quality, greater deposition) on the solar array post project, Bell Steel has converted the remainder of its welding operations, including hand-held processes, to the products.