Our offered Spiral Duct Former (ATM 1500) is for producing round air duct for various uses, such as for HVAC round ducts, oval ducts, chimney flue, etc. Features:- 1.1 Special mould for various tube diameters, very easy to change and adjust, no needs crane or too much manpower. 1.2 Large diameter range 1.3 High speed synch flying cutting system. 1.4 PLC computer control, convenient operation 1.5 Light and small, suitable for site work. Main technical data:- 2.1 Diameter of round tubes:85mm ~ 1400mm. 2.2 Max. Tube length: unlimited. 2.3 Thickness of strip: 0.35 ~ 1.0mm 2.4 Width of strip: 137mm ~ 140mm 2.5 Strip speed: 1~40m/min, adjustable 2.6 Suitable strip material: aluminum, stainless steel, galvanized steel, etc. 2.7 Dimension: 2350mm x 2200mm x 2580mm (can be loaded in one 20â container, 2.8 Weight: 2000kg 2.9 Power of main motor: 5.5kw,380Volt,50Hz 2.10 Power of cutting motor: 4kw 2.11Pneumatic tank Pressure 0.5â0.7Mpa ï¼compressor Clients can avail this Spiral Duct Former (ATM 1500) at industry leading prices from us.