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The Sandy Hill Rotoformer™ is a proven specialty former that has produced a variety of specialty paper and nonwoven webs. The original Rotoformer™ design (conceived in the early 1950's) has remained virtually unchanged for over forty years.

As the specialty sheet manufacturer's markets have become more demanding, so has the need for improved sheet properties from the Rotoformer™. Improvements in sheet basis weight profile, sheet formation, ability to process special fibers and production of a wide range of sheet types are quickly becoming necessities.

With the introduction of the Rotoformer™ 2000, Glens Falls Interweb has addressed the shortcomings of the original Rotoformer™ design. The design changes will provide substantial improvements to the performance of the Rotoformer™.

To allow production of a wide range of products a radial distributor replaces the more traditional tapered flow spreader. The radial distributor provides uniform CD flow / basis weight to the former, independent of total flow rate. This capability will increase the operating flow range of the Rotoformer™ 2000, allowing the production of a wider range of products.

Following the radial distributor is a newly designed hydraulic headbox. The advantage of the hydraulic headbox is that the internal flow patterns are under precise control from the time stock exits the distribution manifold until formation is complete. This feature eliminates areas of non-uniform flow velocities, preventing light fibers from floating and heavy fibers from falling out of suspension. The headbox features improved construction with heavy weight machined parts used throughout, giving very accurate and stable dimensioning. Headbox adjustments are motorized, with digital readouts of all process settings.

The Rotoformer™ 2000 maintains all of the advantages of the original Rotoformer™, while providing the following improvements.

  • Improved CD profile
  • Acceptable operation over a wider flow range
  • Ability to process a wider range of fiber types
  • Improved headbox adjustments
  • Improved repeatability of process settings
  • Better internal access to headbox (for maintenance and clean out)