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CornellCookson Extends Patented Design With New Visionaire MicroCoil Grille

CornellCookson, a leader in closure products for commercial, industrial, institutional and retail applications, has introduced Visionaire® MicroCoil®Grille, expanding its product line of security grilles featuring award-winning curtain technology. The patented, ultra-slim profile of Visionaire® MicroCoil® Grille requires nearly 30% less headroom than standard industry grilles. The curtain coils tightly and efficiently, providing a security solution for facilities with low headroomPreviously only available in high performance construction, this technology is now available in standard-cycle, standard-speed rolling grilles. 

"By expanding the availability of MicroCoil® in a standard-cycle, standard-speed rolling grille, we are able to provide architects, designers and facility managers with a new range of security options for small spaces and retrofit projects,” said Siva Davuluri, Vice President of Marketing, CornellCookson. “It is well suited for schools, urban retail applications, older buildings and structures that cannot utilize a standard size operating grille due to headroom and clearance restraints, or any structure that cannot be heavily altered,” he added. 

A Plethora of New Application 

A major benefit of broadening the availability of MicroCoil® is its patented combination of technology, durability and aestheticsThe Visionaire® MicroCoil® Grille provides space-saving performance for facilities that do not require the speed and operation of high-performance rolling grilles. 

“While our Extreme High Performance MicroCoil® Grille is a boon for busy parking facilities around the country, there are a number of retail and mixed-use applications that can benefit from low headroom coiling grilles that complement the building, while providing protection and security,” explained Heather Bender, Strategic Marketing Manager, CornellCookson. 

“In major cities around the country, historic buildings are often occupied by luxury retailers and high-end boutiques,” explained Jason Millard, Architectural Design Support - Project ManagerCornellCookson. “Whether you’re in New York City, Boston, Philadelphia or Chicago, these spaces often have low headroom, and specifiers can’t change the physical structure and dimensions of the storefront. In order to provide security, they have traditionally relied on scissor gates, but now with Visionaire® MicroCoil® Grille, they have a compact, affordable option that is more robust, blends with the surrounding architecture and allows window shoppers to see merchandise after hours.” 

Designed to Perform 

Product engineers at CornellCookson made several modifications to standard grilles in order to accommodate the curtain for the Visionaire® MicroCoil® GrilleThe steel counter-balance coil shaft has been updated from a standard four-inch barrel to a more robust six-inch barrel. This allows the patented vertical chains to coil tightly and efficiently while providing a stiffer base to support the structure.  

“The secret of Visionaire® MicroCoil® Grille is in the patented design of the curved links,” explained Millard. “The links increase in length as you move down the grille curtain. When the curtain retracts into the head unit, the increasingly longer links allow the grille to coil tightly and neatly stack into itself,” he added. The unique link construction also significantly reduces noise and vibration during motor or manual operations, making it one of the quietest grilles in the industry. 

Visionaire® MicroCoil® Grille can be specified in a wide range of heights—from 6’ to 14’.5”and widths up to 26’. The links are made of high-quality 304-gauge stainless steel and an easy-link repair system contributes to less maintenance, making repairs easyVisionaire® MicroCoil® Grille is rated and warranted to 50,000 cycles and comes with the brand’s full suite of safety and aesthetic features, including photo eyes, light curtains and powder coated finishes.  

More Information 

To learn more about the Visionaire® MicroCoil® Grille, please visit: or 

About CornellCookson 

CornellCookson, a division of Clopay Corporation, is a leading rolling door and grille manufacturer with facilities in Goodyear, Arizona and Mountain Top, Pennsylvania. With history reaching back to 1828, CornellCookson product solutions can be found in stadiums, distribution facilities, hospitals, hotels and museums, as well as a variety of other facilities where reliability, security and life safety is vital. CornellCookson products are available through a worldwide network of more than 700 professional dealers. For more information, please visit 

Adrienne Reitz, Director of Marketing Communications 


CornellCookson is a leading rolling door and grille manufacturer with facilities in Mountain Top, PA and Goodyear, AZ. The company produces custom closure solutions found in stadiums, hospitals, hotels and museums, along with a variety of facilities where reliability, security and life safety is vital. CornellCookson is committed to providing high quality, domestically manufactured solutions, and its brands have operated within the United States since 1828 and 1938. Products are sold through a network of more than 700 Cornell and Cookson dealer partners worldwide to ensure competitive pricing through equal and alternate brands.

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