Extending security grille Cornell Iron works
Side Folding Grilles and Closures provide security and access control in openings to 12' high with low headroom conditions.
Track: The overhead track is an extruded heavy-duty aluminum section 1 1/2" wide, 1 7/8" high. Continuous recesses are extruded into profile to accept splice tongues and pins wherever track splices are necessary. Track required for curved openings has a standard 10" radius: 90°, 120°, 135°, and 150° curves are standard. Custom radii and angles are offered. Grilles can incorporate multiple connecting sections. No floor track required.
More information...