677 series


Side Folding Full Enclosure Security Grilles ​Model 677 features clear fire-retardant polycarbonate for visual access and nonbreakable durability. Visibility: 100% of 4-3/4" (121 mm) viewable area. ​​​​​​​​​​​


Manual unless size requires chain hoist

Curtain Frame 
Truss-like aluminum top and bottom plates; 1/8” (3 mm) thick

Panel Width
7” (178 mm) standard body; 11 1/4” (298 mm) wide body​

Aluminum clear anodized

Trolley assembly 
1 1/8” (29 mm); vertical adjustment 1" (25 mm) up/down without curtain removal

Track detail 
Top-mounted, heavy-duty aluminum sections
Height: 1 5/8" (41 mm)
Width: 1 3/8" (35 mm)

Track Curves and Radius
90°: Standard body: 10” (254 mm) and 14” (356 mm) radius;
Wide body: 22” (559 mm) radius
120°, 135° and 150°; Standard body: 10” (254 mm) radius

Post types
Lead post
Hook lock and wall channel; bi-part; top and bottom shoot bolts
Intermediate post
Bottom shoot bolt
Trailing end post
Traveling; fixed; hook lock and wall jamb; top and bottom shoot bolts; carrier

Locking mechanisms 
Lead post
Concealed cylinder-operated hook lock accessible from interior and exterior
Intermediate post
Concealed cylinder-operated shoot bolt accessible from one side only
Trailing end post
Attached 10’ max. (3048 mm) protection plate self-locking into a steel V-Stop​​

24 month OEM limited​​​​​​​​​​

Door Options