Manufacturers of aluminum windows who work with “Roto AL” or “Roto AL Designo” hardware product ranges can rely on various Roto opening restrictors which have been tested by ift Rosenheim. This is why Roto is pleased to announce the new “ELA” special opening restrictor as a safety feature installed on large Turn-Only aluminum windows.

The “ELA” opening restrictor locks in the end position and is controlled by the handle. By using the proven “Roto TiltFirst” technology, a user is only able to open the sash as far as the defined end stop position. The opening restrictor will limit the opening angle at 89 mm (3.5″).

The “ELA” opening restrictor can be installed on windows that weigh up to 200 kg (400 lbs.), and is available in screw-in and clampable versions.


Window Opening Restrictor
Roto Opening Restrictor

About Roto North America

Roto North America is comprised of Roto Frank of America, Inc. in Chester, Connecticut and Roto Fasco Canada, Inc. in Mississauga, Ontario, Canada. Both locations manufacture window and door hardware, which offers solutions for North American and European applications. RFA and RFC are wholly owned subsidiaries of Roto Frank Fenster- und Türtechnologie GmbH, a global leader in window and door hardware, with 15 production plants and more than 30 subsidiaries worldwide.

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