Description Overview Produce material: non-woven (PET, nylon) Vertical 3-roll calender, 1 set Main Specifications Calender rolls: 3 pieces, diameter 510 mm, roll face 2000 mm, useful width 1850 mm Cooling rolls: 2 pieces, diameter 400 mm, roll face 2000 mm Idle roll: 1 piece, diameter 150 mm, roll face 2000 mm Calender roll speed: 15 m/min (max.) Calender roll drive via Tsubaki roll chain by one motor Calender roll speed control by Mitsubishi vector control Calender roll temperature: 250 degree C (max.) Calender roll heating uses thermal oil by electric tubular heater Individual heating for each calender roll Calender roll linear pressure: 100 kg/cm (load = 20000 kgs) 3 calender rolls up/down via bottom side cylinder Emergency stop Main Structure Very strong structure welded for bottom seat Flat steel plate frame for both side CNC machined for precise alignment Sandblast and painting Calender Roll Details Dimension: 510 mm (diameter) x 2000 mm (roll face) Roll body uses seamless steel pipe and complete stress relief Double shell with spiral wrapped channel Shaft uses alloy steel and heat treatment Roll surface is high temperature resistant alloy harden steel, HRC 50 ± 2 Roll’s roundness, straightness and concentricity ± 0.01 mm Roll surface temperature tolerance is ± 1 degree C Chrome plated and precision grinding Thermal oil rotary joint for each end of roll Cooling Roll Details Dimension: 400 mm (diameter) x 2000 mm (roll face) Roll body uses seamless steel pipe and complete stress relief Double shell with spiral wrapped channel Shaft uses alloy steel and heat treatment Roll surface is no harden Roll’s roundness, straightness and concentricity ± 0.02 mm Roll surface temperature tolerance is ± 1 degree C Chrome plated and precision grinding Water rotary joint for each end of roll Idle Roll Details Dimension: 150 mm (diameter) x 2000 mm (roll face) Roll body uses seamless steel pipe and complete stress relief Shaft uses alloy steel and heat treatment Roll surface is chrome plated and grinding Calender Roll Driven System Roll driven via Tsubaki roll chain by one motor 7 1/2 HP (5.5 kW) Siemens AC inverter motor Planetary reducer + sprocket Tsubaki RS80-SUP roll chain Hydraulic cylinder chain tensioner Cooling Roll Driven System Roll driven via Tsubaki roll chain by one motor 2 HP (1.5 kW) Siemens AC motor Planetary reducer + sprocket Tsubaki RS60 roll chain Hydraulic Oil System 150 mm diameter x 100 mm stroke cylinder = 2 AC motor = 5 HP (3.75 kW) Working pressure = 140 kg/cm2 (max.) Fan cooling Heavy Duty Bearing Block 150 mm diameter FAG self-aligning roll bearing Bearing lubricate by manual Gap Adjustment By manual (under working pressure 20000 kgs) Dial meter gauge indicate Emergency Stop Wire + limit switch Control Cabinet Calender roll / cooling roll unit: speed control uses Mitsubishi AC vector control, roll speed indication (digital), synchronization speed control Thermal oil heating unit: temperature control = 3, temperature indication (digital) = 6, over heating alarm, 80 degree C auto-stop control Calender roll (up / down) Self-lubricate control Emergency stop Warning lamp Calender Roll Heating System Closed loop thermal oil circulation system Individual temperature control for each roll Monsanto thermal oil, 250 degree C (max.) Electric tubular heater = 100 kW x 3 Circulation pump = 7.5 HP (5.5 kW) x 3 Temperature control = 3, PT100 + SCR KSB valve = 9 to 12 2 inch rotary joint = 3, inlet / outlet on the same way Expansion tank with inner floating switch Optional Items Calender roll bearing self-lubricate system: self-lubricate pump unit = 2, manifold = 2, oil tube, flow rate adjust valve Calender roll cooling system (for dropping temperature fast): electric motor valve = 3 (3 way type), water cooler = 3 (heat exchange)
