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Polyband Expander PDF Print E-mail

Problem:

Smoothing out the wrinkles during the web winding process

 

Solution:

Menzel Polyband Expander

Its rare when a product comes along that really is different and obviously better than the available alternatives. It seems that most new developments in the web handling industry are me-too products. This is not the case with Menzels Polyband Expander. It is not a slat expander or bow roll, but a better and more efficient system than the other two combined. The Menzel reputation has been built on offering solutions through innovation and the Polyband Expander is a perfect example.

 

 

Standard Features:

 

  • Unit is constructed of a 6" diameter cylindrical aluminum extrusion. Equidistant grooves are machined into the cylinder to house the 30 highly elastic polymer bands.
  • Bands run from end to end and are connected to individually adjustable cams which provide greater flexibility in spreading.
  • The amount of spreading is fully-adjustable while the line is running and, unlike the bow roll, the Polyband does not overstretch the web in the middle.
  • The Polyband Expander is driven and functions by the movement of the web itself.
  • Operates smoothly, evenly and quietly.
  • There are no lubrication points in the web area, assuring clean operation.
  • Individual elastic cords are easily replaced without the need for special tools, making maintenance a snap.
  • The Polyband functions with web wrap from 30o to 180o, allowing an easy fit atnearly any spot on your machine. And because the entire web touches the roll, you are assured of consistent, wrinkle-free results.

 

 

 

Optional Features:

 

  • Cylinder drive sheave can be attached when driven roll is required for gentle handling of delicate fabrics. (A-section belt, timing belt, chain-drive sprocket.)
  • Special construction available for high speed (up to 1500 FPM) applications.
  • For high-temperature requirements, a special silicone elastic band can be adapted to the standard roll

 

 

 

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