ADU-AS Series Overcoming the Limitations of Conventional Dancer Mechanisms for Higher Precision

Customer Challenges Quality Variation Caused by Dancer Control
with Thin Substrates or Low-Tension Transport

Customer Challenges

A dancer is one of the important mechanisms used in tension-based transport control.

A dancer is a mechanism that stabilizes substrate tension in roll-to-roll transport.
A movable roller installed along the material path absorbs tension fluctuations and prevents the substrate from being pulled too tightly or becoming too slack.
Because unwinding, processing, and winding occur simultaneously in roll-to-roll equipment, even slight speed differences or disturbances can easily change tension. The dancer physically absorbs these fluctuations and feeds them back to the control system.

Illustration of dancer movement A dancer is one of the important mechanisms used in tension-based transport control.

The dancer functions as a buffer that dampens and absorbs tension fluctuations, supporting the stability of the entire roll-to-roll process.

However, when transporting thin or stretchable substrates, or when transport at low tension is required, conventional dancers may present the following challenges:

  • sentiment_sad Tension fluctuations cannot be suppressed sufficiently
  • sentiment_sad Stable low-tension transport is difficult for thin and flexible films
  • sentiment_sad Higher transport speed increases tension fluctuations and destabilizes quality
  • sentiment_sad Wrinkles, elongation, and registration errors caused by tension fluctuations reduce yield

Solutions Significantly Suppress Tension Fluctuations and Achieve Stable Transport with ADU-AS

Solutions

1.Overcome the Drawbacks of Conventional Dancer Mechanisms

  • sentiment_very_satisfied Eliminate the effect of dancer dead weight
  • sentiment_very_satisfied Eliminate friction resistance in moving parts
  • sentiment_very_satisfied Reduce pneumatic transmission delay
  • sentiment_very_satisfied Achieve high-response, high-precision dancer control

2.Significantly Suppress Tension Fluctuations

  • sentiment_very_satisfied Improved control performance minimizes stress on the substrate
  • sentiment_very_satisfied Suppress tension fluctuations to one-quarter or less compared with a conventional dancer
  • sentiment_very_satisfied Achieve stable transport even under ultra-low tension conditions, including 1 N or less

3.Improve Stability during High-Speed Transport

  • sentiment_very_satisfied Stable transport is achieved even under high-speed operating conditions (up to 200 m/min), with only minimal increases in tension fluctuations as transport speed increases.

4.Support a Wide Range of Equipment and Conditions

  • sentiment_very_satisfied Customize to match substrate width and tension range
  • sentiment_very_satisfied Can also be retrofitted to existing equipment, particularly the winding section

The new dancer mechanism suppresses tension fluctuations caused by dancer movement and stabilizes tension, resolving challenges involving difficult-to-handle substrates and low-tension transport.