Industrial Downspout Machines: Several U.S. companies produce industrial-grade machines for roll forming downspouts. These machines are larger, heavier, and more expensive than portable roll forming machines. Artos produces standard pipe machines which can produce round pipe in sizes from 2-inch to 6-inch diameters, corrugated round pipe in 3-inch or 4-inch sizes, square corrugated pipe in 3-, 4-, or 5-inch sizes and 2x3 or 3x4 plain square pipe.
(Your seamless gutter machine probably produces about 30 feet per minute.)Jobsite’s CTMe Series machines can produce 2x3, 3x3, 3x4, or 4x5 profile downspouts, and elbows. Jobsite also produces the RTMe Series machines, which can produce round downspouts and elbows in 3- or 4-inch sizes. Elbow Machines: There are also few U.S. manufacturers producing elbow machines. Jobsite also produces a portable elbow-forming machine, the ELF, which can produce 2x3 or 3x4 elbows.