Variable speed pulleys are driven by a V-shaped belt system and a variable speed assembly that regulates an infinite speed range change by the turn of a dial. Three-phase refers to three individual lines (coils) that connect to and run voltage through the motor. Each line alternates in a sequence as it reaches its voltage peak. They provide a more stable flow of voltage and more horsepower to the equipment. 3.18 to 15.88. Floor to Table Height (Inch). The item “Vectrax 450 Vertical Bandsaw with Welder, 18 variable speed 3 phase 220 volt” is in sale since Tuesday, June 2, 2015. This item is in the category “Business & Industrial\CNC, Metalworking & Manufacturing\Metalworking Equipment\Metalworking Saws & Cutters\Other Metalworking Saws”. The seller is “leitz-tooling” and is located in Grand Rapids, Michigan. This item can’t be shipped, the buyer must pick up the item.