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Pro-Heat – Gauge control system for automatic die-heads

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Gauge control system for automatic die-heads.

  • It’s a full automatic system suitable to control the cartridge heaters fitted into the die-head (cartridge heaters and die-head not included in the scope of supply).
  • The system controls an existing automatic die, provided with cartridge heaters (not included in the supply scope) being installed on the die, close to the gap.

 

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OPERATING MODE AND FUNCTIONS

 

  • The automatic control system gets the inputs from the thickness sensor and therefore adjusts the temperature of each cartridge control zone, to compensate any deviation of the thickness profile:
    – if a thicker section is detected, the temperature into the relevant control zone is slightly increase, hence the melt is going to be a little over heated, enough to make the gauge thinner;
    – if a thinner section is detected, the temperature into the relevant control zone is slightly reduced, hence the melt is going to be a little under heated, enough to make the gauge thicker.
  • The temperature of each cartridge control zones can be manual adjusted from the operator screen. When in Automatic Mode, all adjustments are controlled automatically by the gauge control software
Rotomat-KT-1

ONLINE THICKNESS SENSOR KÜNDIG K-500 ROTOMAT

  • The capacitive sensor, on slewing ring, goes around the bubble and measures the film thickness along the circumference, over the frost line.
  • The system calculates the thickness average value and the thickness actual values on each radial position (corresponding to the control zones of the automatic air rings).
  • Rotates continuously in one direction at a minimum rotation time of 36 seconds.
  • Different sizes of slewing rings available for lay-flats from 255 mm up to 3900 mm.
  • Sensors with different coatings available: CRS (chrome coated sensor for standard films, excellent durability with abrasive films), PVD-2 (plasma coated sensor for slightly sticky films, good durability with light abrasive films), PTFE (coated sensor for sticky films, short lifetime with abrasive films).
  • On demand, the PRO-HEAT can be interfaced with any other sensor available in the market.
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