ABH A280HD/A280LL Aluminum Continuous Geared Hinge - Heavy Duty Full Mortise for 1-3/4" Doors

ABH A280HD/A280LL Aluminum Continuous Geared Hinge - Heavy Duty Full Mortise for 1-3/4" Doors

Professional Heavy-Duty Continuous Hinge Solution

The ABH A280HD/A280LL Aluminum Continuous Geared Hinge delivers professional-grade performance for 1-3/4" thick doors with full concealed, heavy-duty construction. Designed to support door weights up to 450 lbs (A280HD) or 1,000 lbs (A280LL lead-lined model), this BHMA Grade 1 certified hinge provides continuous frame reinforcement and eliminates common alignment problems. Available in standard lengths of 79", 83", 85", 95" and 120" with anodized aluminum construction for lasting durability.

Professional Features & Benefits

• Heavy-Duty Weight Capacity: Supports doors up to 450 lbs (A280HD) or 1,000 lbs (A280LL lead-lined model) for demanding commercial applications.
• Door Thickness Compatibility: Engineered specifically for 1-3/4" thick doors with full mortise installation.
• Standard Length Options: Available in 79", 83", 85", 95" and 120" lengths to accommodate various door heights.
• BHMA Grade 1 Certification: Meets BHMA 156.25 Grade 1 standards for commercial-grade reliability and performance.
• Fire Rating Compliance: Approved for metal swinging fire doors up to 90 minutes and wood swinging fire doors up to 60 minutes.
• Enhanced Security Design: Eliminates gaps between door and frame, preventing prying attempts while providing continuous reinforcement.
• Surface Applied Installation: No mortising of door or frame required, simplifying installation and covering old butt hinge cut-outs.
• Professional Fasteners: Includes 12-24 X 3/4" undercut self drilling, thread forming tek machine screws for secure mounting.

Technical Specifications

• BAA Qualified: Yes
• Commercial/Residential: Commercial
• Department: Door Hardware
• Door Weight: 450
• Fasteners: 12-24 X 3/4" undercut self drilling, thread forming tek machine screws
• Keyed: N/A
• Keyed Function: N/A
• Product Category: Door Hinges and Pivots
• Product Group: Door Hinges and Pivots
• Product Model: A280HD / A280LL
• Product Subgroup: Continuous Hinges
• Product Type: Continuous Hinges
• Series: A280HD-A280LL Series
• Subcategory: Full Mortise Hinges

Professional Applications

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

Fire Rating Compliance

This continuous hinge is approved for use on metal swinging type fire doors rated up to and including 90 minutes, and wood swinging type fire doors rated up to and including 60 minutes, ensuring code compliance for fire-rated openings.

Why Choose ABH Quality?

ABH continuous hinges deliver professional-grade reliability with anodized aluminum construction and BHMA Grade 1 certification for demanding commercial applications. The heavy-duty design supports doors up to 450 lbs (A280HD) or 1,000 lbs (A280LL) while eliminating common alignment problems through continuous weight distribution. Engineered for dependable performance where security and smooth operation are essential.