Comifo spiral tube former also called Spiro Tube Forming Machine,spiral machine,spiral tube machine,spiral tube former machine There are two kinds of spiral tube forming machines. Forming heads required and forming heads not required. It processes round duct of maximum diameter up to 1600mm. it is easy to change the diameter for different duct size by changing different forming heads. Hydraulic roll cutting provides no burrs, sparks or noises. FHR-1600Diameter Range φ100-φ1600mm Length of the Tube 100-8000mm Thickness Range 0.4-1.2 mm (18-30ga) Speed 0-40m/min (0-131FPM) Coil Width 137mm Cutting Unit: Fly cutting,Roll Cutting Cutting tolerance: ±0.5mm Optional Diameter of Forming Heads φ100, φ125, φ160, φ180, φ200, φ225, φ250, φ300, φ315, φ355, φ400, φ450, φ500, φ610, φ710, φ800, φ1000, φ1120, φ1250, φ1400, φ1600 Assembling Pictures: More Detailed Pictures: