Pulse MIG Comparison
The main difference between the three pulse MIG series welders is the number of torches. The SP-1 is a compact all-in-one welder with 1-torch and 1-spool, while the SP-2 has 2-torches and 2-spools. The SP-5 has 3-torches and 3-spools. The SP-2 and SP-5 both feature auto switching between different MIG configurations.