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X-Pact® Active Chatter Damping

Chatter damping and roll force measurement functionality in one unit

Productivity

  • Full use of the maximum rolling speed  

Efficiency

  • Increased output of >10 %
  • Maximized profit with increased output
  • Rapid return on investment
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Challenges

  • The max. rolling speed of tandem mills is often restricted by self-excited (150-250Hz) or externally exited (750-1000Hz) mill vibrations resulting in strip thickness defects and equipment damage
  • Consequently, the mill speed must be reduced

Solution

  • Application of precise counter vibrations by piezo actuators eliminating mill chatter up to 1000Hz

Technical advantages

  • Reliable increase of rolling speed and output independent from characteristics of excitation
  • Applicable for retro-fit
  • Combination of chatter damping and roll force measurement functionality in one unit