Poweredrollers.com web transport demo unit
This demo unit shows a light, 80mm-wide nonwoven web
being unwound from a free-wheeling unwind stand, over a 90-degree turn-bar,
through a positive-displacement web guide, through a series of (6) rollers of
which (3) are powered, and finally through an air vortec unit to keep a minimal
amount of tension on the web only to assure roller contact. These
are some of the toughest components to run a low-tension web over at high
speeds. The video link below
shows the web being transported over these components at speeds over 1500fpm
only by the torque of the driven idler rollers. The
turn-bar actually feeds out material faster than the web guide can take up so
the tension at theentrance of the guide is near zero. The
unwind stand is not driven and there is no rewind or nip drive to generate web
tension. Also, all of the roller function as idler rollers when
de-energized for ease of thread-up.
A mobile version of this unit will be available to travel to meet with your
engineering team soon.
A mobile version of this unit will be available to travel to meet with your engineering team soon.
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