Features: 1. Intergrating uncoiler straightener and feeder 3 in 1, compact design saving space while increasing production efficiency. 2. NC servo feeding. The electrical parts from Japan's Yaskawa Electric, high precision and stability. 3. Opto-Electronic loop (Electric eye Loop)control system. 4. Feeding and straightening rollers are hard-chrome finished, heat treated to HRC60 for highest rigidity and durability. 5. Outgoing catenary (Material guide rack) in the straightener outlet to assist and support the material. 6. Feeding line can be easily adjusted by advanced worm gear screw jacks device. 7. Hold down arm device, uncoiler with inverter control. 8. Standard Indicator (Reference indicator adjuster). 9. Inverse curve roll, easy to set up the curve up or down of feeding exit direction.Model NCHL-300B NCHL-400B NCHL-500B NCHL-600B NCHL-700B NCHL-800B Thickness of material 0.3-3.2mm Width of material 50-300mm 50-400mm 50-500mm 50-600mm 50-700mm 50-800 Work roll upper4/lower3 Max. speed 16m/min Max. coil weight 2000 3000 Coil I. D 450-530 Max. Coil O. D 1200 Feeding Accuracy ± 0.15 Uncoil motor(kw) 1.5 2.2 feed level 1100± 100 Uncoil expansion Hydraulic Air Supply 5kg/cm² Power Supply 380V Main Motor(kw) 1.8 2.9 4.4 Max speed of air pressure release 100SPM