SentryGate® Grilles 
SentryGate®3 Model ESG20, SentryGate®4 Model ESG21
SentryGate, a patented Cornell Product, is an alternative to traditional rolling grilles or counter grilles featuring a unique curtain comprised of injection molded components and continuous metal rods. See our Grille Application Brochure.
Two configurations: The SentryGate is available in two models:
- SentryGate®3 (Model ESG20) for countertops such as pharmacies and parts counters and smaller openings up to 14' W by 10' H.
- SentryGate®4 (Model ESG21) for larger openings up to 23' 4" W x 14' H and where high cycling is required, such as parking garages and sally ports.
Operation: Standard Motor, hand crank, or push-up designs available. Concealed tube motor operation provides a solution for aesthetics or strict dimensional limitations around the header that lend themselves to a smaller, compact operator - consult Cornell for size limits.
SentryGate Benefits:
- Quick Security Fix: A lightweight and compact design allows the unit to bolt directly to existing wall construction, frames or mullions. Units can be easily incorporated into existing construction without the penalty of remodel downtime and cost.
- Rugged Curtain Construction: SentryGate curtains will maintain structural integrity and clean look, even with high cycle use.
Curtain Material: Combines high strength injection molded components with continuous metal rods spaced every two inches. Its attractive brick pattern design is 65% open for high visibility and ventilation. The smooth curtain components are safe for employees and customers, and are available in black or white matte finish.
100,000 Cycle Life Extreme™ SentryGate Grilles
Product solutions that meet exact performance needs. Extreme cycle life grilles have been tested and proven to meet the level of performance required.
Features: curtain is black or white polyester/polycarbonate links in a brick pattern configuration with 2" rod spacing. 3 Phase Cornell SG operator. 100,000 cycle springs and greasable bearings.
- Max. Speed: 12 ips.
- Size Limits: 23' 4" W x 12' H max.
- Options: Sensing devices, springless shaft design with safety stop-lock bearing and manual locking on bottom bar only. Consult Cornell for details.
Also see Extreme™ Cycle Life Straight and Brick Pattern Grilles, Extreme™ Cycle Life Coiling Service and Insulated Doors and Extreme™ Performance Rubber Doors.

