The decoiler straightener parts are combined control system but have a loop type structure. It has manual expansion uncoiler spindle for medium duty coil under 3tons. And hydraulic expansion uncoiler spindle is the option for heavy-duty coils up to 7tons. Uncoiler shaft is AC motor drive and has an inverter for variable speed control, with large pitch chain transmission and pneumatic disk brake system. With pneumatic pressing arm to add pressure on the coil, there is also a pneumatic support arm for smoothly uncoiling. The support arm also equips the Omron photoelectric sensor for loop control and detective the loop abnormal.
Depends on actual material type and thickness, there will be an inlet support device to let the strip enter into straightening parts fast and smoothly. Coil inlet part has a manual wheel to adjust the limit rolls for different stock width. The maximum stock width that can be processed by this loop-type coil feeding line is 1300mm.
The quality of straightening roll is vital for precision straightening, so all of the HE straightening rolls are made by high quality bearing steel. With strict heat treatment and hard chrome plating surface treatment, the rolls have a long service lifetime and promise the precision straightening process. The standard rolls arrangement is 4pcs upper roller and 3pcs roll down, with pneumatic type pressure on rolls, and manual wheel for pressure adjustment.