Sargent MD8643 Classroom Function Concealed Vertical Rod Exit Device with Freewheeling Trim

Sargent MD8643 Classroom Function Concealed Vertical Rod Exit Device with Freewheeling Trim

Professional Concealed Vertical Rod Exit Device for Classroom Applications

The Sargent MD8643 is a classroom function concealed vertical rod exit device from the proven 8600 Series, engineered for standard width stile applications on hollow metal doors with 1-3/4" minimum thickness. This device accommodates doors from 1-3/4" to 2-1/4" thick and requires 4-1/2" minimum stile width for proper installation. Available with factory-cut rails in four sizes (E, F, J, G) to accommodate door widths from 24" to 48", with the G Rail specifically designed for 43" to 48" door widths.

Professional Features & Benefits

• Door Width Compatibility: Available in four rail sizes - E Rail (24" to 32"), F Rail (33" to 36"), J Rail (37" to 42"), and G Rail (43" to 48") with factory cutting to exact door width when specified.
• Heavy-Duty Construction: Designed for hollow metal doors with 1-3/4" to 2-1/4" thickness and 4-1/2" minimum stile width for robust commercial applications.
• Classroom Function Design: Freewheeling trim configuration provides appropriate access control for educational facility requirements.
• Stainless Steel Components: Top bolt constructed from stainless steel for enhanced durability and corrosion resistance.
• Flexible Installation Height: Standard device centerline at 41" from finished floor, with 38" option for elementary schools and accessibility compliance when used with 100 Series Auxiliary Control.
• Comprehensive Strike System: Includes 650 Top Strike and 606 Bottom Strike for both panic and fire rated applications.
• Hex Key Dogging: Standard hex key dogging on non-fire rated devices with optional cylinder dogging (#41 cylinder supplied) available.
• Extensive Electric Options: Compatible with AL-Alarm, BT-Beacon, PL-SARGuide Photoluminescent, TL-SARGuide Illuminated Touchpad, and monitoring options including LX Latchbolt Monitor, Outside Lever Monitoring, and Request-to-Exit Signal.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness (1-3/4" to 2-1/4"), stile width (4-1/2" minimum), and door width for proper rail selection.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces, ensuring proper device centerline height (41" standard or 38" for elementary applications).
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions, accommodating center case dimensions of 8-3/8" x 2-5/8".
4. Install all mounting hardware including 650 Top Strike and 606 Bottom Strike, securing the device to door and frame per manufacturer torque specifications.
5. Adjust operational components for proper alignment, latching, and smooth operation with pushbar projection of 3" neutral and 2-1/8" when depressed.
6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Educational Facilities and Classrooms
• Commercial Office Buildings
• Healthcare Institutions
• Government and Municipal Buildings
• Multi-Tenant Residential Properties
• Industrial and Warehouse Facilities
• Retail Establishments

Why Choose Sargent Quality?

Sargent 8600 Series exit devices deliver professional-grade reliability with stainless steel top bolt construction and robust hollow metal door compatibility. The series provides simplicity, strength, and durability with comprehensive electric options and flexible installation configurations. Engineered for demanding commercial applications where dependable classroom function performance is essential.

Product Documentation & Resources

• [Catalog] SARGENT Full Line Catalog