I Main features: 1) Double-inverter-link PLC control 2) Full automatic, automatic loading & clamping, automatic feeding, welding and unloading 3) 3D electric adjustment for welding section; Electric adjustment for supporting section 4) Rail on the machine is made by 40Cr, high quality 5) Pneumatic clamping tubes, pneumatic chuck 6) Equipped with emergency stop and anti-bumping device II Main technical data 2.1 Max. finned tube length: 14m 2.2 Steel tube diaemter: 25-220mm 2.3 Steel strips for fin: 0.8-3.5mm thick, 10-40mm width (not more than radius of steel tube) 2.4 Spiral pitch: 4m-50mm, stepless adjustable 2.5 Spiral winding speed: 30m/min (linear feeding speed of strips) 2.6 Terminal un-welded length on the steel tube: less than 20mm 2.8 Spiral pitch tolerance: +/-0.1mm 2.9 Speed of mandrel: 0-350 rpm 2.10 Equipped high frequency welding power: 200KVA 2.11 PLC, touch screen, inverter, phototubes, approaching switches, reflectors are all Panasonic brand, original from Japan. 2.12 Dimension: about 30m x 3.5m x 1.7m (L x W x H) 2.13 Weight: about 25T Add to Basket