portal-type flange diameter: 800 mm – 2000 mmcore diameter: 600 mm – 1300 mm spool width 300 mm – 1300 mm spool load: max. 8 to bore diameter: 80 mm 100mm pitch:3 mm – 100 mm constant tension control Fast Moving left or right :4m/min pintle move up ,down, left or right (individual or connected) Lift speed: 224mm/min lift arm electric Open close , up ,down, move Characteristics: Portal ground rail traveling, double column. welded by giant steel tube, hard tooth face Take-up gearbox, High Torque, low noise, running smooth,,avoiding roll and pitch move of spool. Big load,easy to use, DC control main motor and Traversing motor, take-up speed automatic tracking, take-up constant tension control.