674 series


Upward-coiling perforated grille (Model 674) provides an attractive yet functional means to secure areas where public access must be restricted. Perfect for interior applications such as retail, pharmacies and healthcare facilities, the perforated aluminum panels provide security without sacrificing visual access, air circulation or light infiltration.

Available in clear anodized or premium PowderGuard® powder coat finish and with an optional electric operator -- our rolling grilles are well-suited to most any interior environment and application.​


Manual unless size requires chain hoist

Curtain Material / Finish 
aluminum, clear anodized

Perforated aluminum panels

Bottom Bar 
Clear anodized

Guide Type 
Guide channels are extruded aluminum with continuous wear strips;
clear anodized;
Wall angles and any pack-out angles are galvanized steel

12 month limited​​​​​​​​​​​​​​​​​​​​​​​​​

Interior face of wall is standard
Between jamb options available

Steel with black powdercoat finish

Steel sized for maximum deflection of .03” per linear foot​​

Oil tempered, 20,000 cycle, torsion springs​​​​​​​​​​​​​​​​​​​​​​

Center locking bottom bar, with 1/2” diameter steel throw rods; Comes standard with cylinder locks on both sides or thumb turn on secured side ​​​

​​​​​​High-Performance, Low Maintenance.​These security grilles are built for long-lasting, trouble-free performance. The counterbalance assembly features heavy-duty helical torsion springs in a steel tube or pipe barrel to provide long and reliable service. Guides feature continuous wear strips for ease of operation and noise reduction. Surfaces are factory pre-finished to minimize field preparation and enhance the finish’s durability. Optional crank or electric motor further simplifies grille operation.

​Optional Electric Operation
These security grilles are available with an electric operator to provide automatic passage for a variety of commercial and industrial uses, including retail storefronts, schools, pharmacies, healthcare facilities, libraries, and public access buildings. Our commercial operators are designed to work with the Model 674 to ensure precise, smooth and safe operation for years to come. These operators are available with a variety of safety and actuator options that make these grilles suitable for nearly any commercial or retail application. These options include:

  • Entrapment protection, including an electric or pneumatic sensing edge or photoelectric sensors
  • Push-button, key or combination stations; surface or flush-mounted for interior or exterior locations
  • Vehicle detectors, key card readers, photocell and door timer controls
  • Treadle or pull-switch stations
  • Telephone entry and coded keyboard stations
  • Universal programmable door timer
  • Radio control systems (24 VAC or 120 VAC)
Door Options