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NovaStar, DG256, New, 3 Roll Friction Calender, 3000mm Working Width, 100T Max Pressure (New)

NovaStar, DG256, New, 3 Roll Friction Calender, 3000mm Working Width, 100T Max Pressure

Description

  1. Overview
    1. Consists of three rollers: a top heating steel roller, a middle nylon roller, and a bottom steel carrier roller.
    2. When the fabric goes through the top calendering point and the bottom calendering point, the friction roller runs faster according to the required friction rate so that the fabric will be bright and soft.
    3. The speed of the friction roller is faster than the other rollers by 30% to 300%.
    4. The friction rate is according to customer needs, usually 30%.
    5. The machine can also do ordinary calendering.
  2. Main Specifications
    1. Model: DG256 3-roller friction calendering machine.
    2. This machine can be used to do ordinary calendering and friction calendering.
    3. Pattern: vertical three rollers. The top roller is a heated steel mirror roller, the middle roller is nylon covered, and the bottom roller is a mirror polished carrier roller.
    4. Machine hand: left hand or right hand. Face the fabric input direction; if the transmission direction is at right, then it is right hand.
    5. Working width: 3000 mm. The effective working width is 2800 mm.
    6. Fabric outlet: batcher + plaiter.
    7. Working speed: 5 to 50 m/min.
    8. Maximum pressure between rollers: 100 ton.
    9. Pressure type: hydraulic.
    10. Diameter of the cylinder: 200 mm.
    11. Pressure of the hydraulic system: ≤ 15.5 MPa.
    12. Pressure control: constant pressure control technique. The pressure fluctuation range is within ±0.1 MPa, so as to ensure the fabric will get the same effect across the whole width.
    13. Thickness of the wallboard of the roll: 80 mm. Using Q235-A steel plate and through numerically blanking, then processed with a CNC machining center to ensure accuracy.
    14. Diameter of the top and bottom mirror rollers: 450 mm. Using forged steel 40Cr and machined. After chrome and grinding, the surface will be smooth as mirror (roughness ≤ 0.2 µm). The bearing house is hough-type (the upper and the lower parts can be separated), making it very easy for operation, maintenance, and disassembly of the roller (domestic unique design).
    15. Diameter of nylon roller: 560 mm.
    16. Wool paper roller used for friction calendering: 560 mm × 3020 mm. Imported wool paper from Germany and processed by a 3000 ton hydraulic pressing machine.
    17. Heating method of top mirror roller: electric heating.
    18. Control method of electric heating: constant temperature control technique. SCR control, which makes the temperature control more accurate and makes the heating process more stable.
    19. Power of the conducting oil heater: 48 kW.
    20. Surface working temperature of the mirror roller: ≤ 220 °C.
    21. Transmission type of ordinary calendering: the top roller is positive, the middle and bottom rollers are passive.
    22. Transmission type of friction calendering: the top and middle rollers are positive, the bottom roller is passive.
    23. Power of the transmission motor of top roller: 22 kW. Cylindrical reducer.
    24. Power of the transmission motor of middle roller: 5.5 kW. Hardened cycloidal reducer. When doing ordinary calendering, transmission is separated.
    25. Power of the outlet motor: 3.7 kW + 3.7 kW. Worm gearbox.
    26. Speed regulation method: inverter control. Yaskawa inverter, stepless speed regulation. Semi-automatic electric control, the electric components are Schneider brand. It can regulate the input and outlet speed simultaneously, and also can do slight regulation of the outlet speed.
    27. Cooling method of the middle roller: air cooling + water cooling.
    28. Centering device for fabric input: fabric guider.
    29. Input tension control: two sets of tension frames.
    30. Safety device 1: metal detector. Automatically detects if the fabric has metallic particles and lifts the roller automatically when there are defects to protect the roller surface.
    31. Safety device 2: static eliminator. Automatically eliminates the static of the calendered fabric to protect operators and fabric.
    32. Safety device 3: seam detector. Automatically detects the fabric seam. If there is a seam, it will lift the roller automatically to protect the roller surface.
    33. Safety device 4: emergency rope switch. Installed one set both at the input and outlet position.
    34. Safety device 5: bumper. Installed one set both at the input and outlet position.
    35. Power of the whole machine: about 65 kW.
    36. Weight of the whole machine: about 25 ton.
    37. Dimension (L × W × H): 5600 mm × 4700 mm × 3200 mm.
  3. Spare Parts
    1. Stainless steel heating tube: 12 pieces, 16 mm × 2600 mm.
    2. Carbon brush collector: 1 piece.
    3. Carbon brush frame: 1 set.
    4. Carbon brush: 12 pieces.
    5. Cylinder seals: 1 set.
    6. Electric contact pressure gauge: 1 piece.
    7. Solenoid valve: 1 piece.
    8. Maintenance tools: 1 set.