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ZHF Double Facer


Main features
  • Substantial frame, no heating plates or frame deformation caused from thermal expansion.
  • Modular design for heating unit for easy installation and maintenance.
  • Special inner structure of hot plate, surface hard-chrome coated and ground, improves thermal efficiency and wear resistance.
  • Patented pneumatic air pillows system brings better permeability; automatic pressure control ensures stable bonding to the uppermost layer.
  • Intensive shoes are corresponding to each hot plate for loading.
  • Pressure air pillows at both edges can automatically up or down up to the web width.
  • Upper loading device is automatically hydraulic lifting at down time and lowering when turns on the machine, which effectively reduces overheat of board and prolongs lifespan of belt.
  • Two steam infusion heating plates enhance heat transferring efficiency and balance the up and down moisture of paperboard.
  • Cooling section is consisted of shoes and rollers. This combination reduces surface temperature difference and moisture difference between top and bottom liner and improves board smoothness.
  • Pressure air pillows of heating unit are hydraulically lifted and lowered as a whole
  • Elastic tension for both upper and lower belts, prolonging lifespan of bearings and journal.
  • Steam cleaning device for the upper belt.
  • Automatic run controller for both upper and lower belts.
  • Upper belt is equipped with steam cleaning device, eliminating dust and static electricity.
  • Variable frequency control and timing belt transmission for the drive unit, power saving and lower noise (for specification rated higher than 300m/min).
  • Variable frequency control and gear transmission for the drive unit, power saving and lower noise (for specification rated lower than 300m/min).
  • Large engraved drive roll stand, covered with anti-slippage cushion rubber, reducing belt slipping and improving the machine stability.
  • Closed guard fence for personnel safety.
  • Steam sprayer at the entrance ensures sufficient moisture for glue gelatinization
  • Heating and dehumidifying device for belt, ensuring good moisture volatilization and perfect forming
  • Section temperature readout and automatic control, providing different temperature and heat for different paper, ensuring perfect paper bonding quality

Technical data

  • Width: 2500mm
  • Designed speed: 350m/Min