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Upgraded Sheeting Winder for TPO, PVC and EPDM Roofing Membranes




Macro Engineering & Technology Inc. has upgraded its heavy sheet winder offering used primarily in the production of roofing membranes comprised of TPO, PVC and EPDM.


sheeting winder for TPO EPDM and PVC roofing membranes

To increase production output the winder’s automatic roll transfer sequence has been shortened from 75 seconds to 50 seconds, allowing the extrusion line to operate 50 percent faster.  In addition, the winder can now accommodate finished rolls from 200 mm to 700 mm in diameter and up to 3.5 m wide.

The winder features straight cuts with accurate roll length and new roll starts by means of a tucking mechanism that eliminates the use of glue, tape or staples to fix the sheet onto the core. 


The winder is also equipped with a slitting station for creating multiple rolls and an accumulator that provides two minutes of contingency time during process changeovers, sample cuts and routine maintenance.  The finished rolls are taped with automatic taping heads before being unloaded with an automatic roll cart.  New cores are loaded on the winder automatically.


Macro built its first TPO winder in 2006 and has since installed several winders throughout North America.



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About Macro 

Macro Engineering & Technology is a global supplier of film and sheet extrusion systems that specializes in barrier film lines and custom engineered extrusion systems. Founded in 1978, Macro’s approach is to help film and sheet producers reach their production goals through a project-oriented philosophy and an uncompromising commitment to developing innovative technologies. 


Macro manufactures blown, cast and biaxially-oriented coextrusion lines for multilayer films up to 13-layers. The company also supplies sheet extrusion lines for specialty applications, along with extrusion coating and laminating lines. Macro also specializes in developing customized winding solutions and supplies winding equipment to meet the needs of complex requirements. 

Macro’s equipment is used throughout the world to manufacture value-added products in the food packaging, medical, and industrial markets. 


For more information about Macro Engineering & Technology Inc. contact us.