This device is used where rubber expander rollers are not suitable. Polyband Is very much essential for the thin web, 10 microns and less. Polyband performs well for separating the web after slitting irrespective thickness. The device is also very much useful in processing PP and HM expander performs without any limitation of lead-out distances result are obtained with wrap angle of 90 degree. Depending upon web ID, Thickness, we need to adjust strength, touch-in and touch out points

Main components of a polyband    expander are aluminum pipe, highly elas cord and stretching assembly fixed on both ends etc.

Sizes :

*   90mm dia & 140mm dia
*   length upto 2500 mm

Rubber Grooved Spreader Roller

When web is having a very delicate layer as in case of realized film, melt expander roller nor polyband expander are suitable for the purpose.

For such type of applications, rubber grooved spreader rollers are ideal and basically rubber "rollers having unique groove pattern on rubber surface, The resonance are achieved due to groove pattern and the same make these rollers handling delicate films without any damage during wrinkle removing process.

Types
•    Individual groove Type RH & LH
•    Two or four starts scroll type RH & LH