Hager 780-112HD Heavy Duty Concealed Leaf Continuous Geared Hinge
Professional Heavy-Duty Continuous Hinge Solution
The Hager 780-112HD Heavy Duty Concealed Leaf Continuous Geared Hinge delivers professional-grade performance for high-frequency doors and heavy, medium-frequency doors up to 1-3/4" (44 mm) thick. Constructed from aluminum 6063-T6 material with available lengths of 79", 83", and 95", this hinge provides reliable operation with frame and door leaf alignment ribs for proper positioning. The concealed leaf design offers 5/16" (8 mm) hinge side clearance and meets ANSI/BHMA A156.26 C standards with up to 3-hour fire rating for metal doors.
Professional Features & Benefits
- Heavy-Duty Construction: Aluminum 6063-T6 material engineered for high-frequency doors and heavy, medium-frequency applications with exceptional durability.
- Multiple Length Options: Available in 79", 83", and 95" lengths to accommodate various door heights and installation requirements.
- Concealed Leaf Design: Provides clean aesthetics with 5/16" (8 mm) hinge side clearance plus standard lockside clearance for proper door operation.
- Alignment Features: Frame and door leaf alignment ribs ensure proper hinge and door location for consistent performance.
- Fire Rating Compliance: Up to 3-hour fire rating for metal doors and 90-minute rating for wood composite doors with studs for code compliance.
- Electric Modifications Available: Optional power transfer preparation (EPT 2 or EPT 10), exposed electric contacts (E), switches (E1S), through-wire (ETW), monitoring (EMN), and combined through-wire and monitoring (ETM) capabilities.
- Specialized Applications: Lead lined model available for hospital x-ray room doors with double row of fasteners to straddle lead (specify "LL").
- Lifetime Warranty: All Roton products have a lifetime warranty with one-year coverage on electric portions for added confidence and protection.
- Standard duty for medium frequency doors. Heavy duty for high frequency doors or heavy, medium frequency doors. All for doors 1-3/4” (44 mm) thick.
Technical Specifications
- Applications: Lead lined model for hospital x-ray room doors with double row of fasteners to straddle lead (specify "LL").
- Clearance: 5/16" (8 mm) hinge side.
- Commercial/Residential: Commercial
- Door Reinforcement: None required to 200 lbs. Heavier weight use 16-gauge channel.
- Electric Modifications: Power Transfer Preparation (EPT 2) or (EPT 10)
- Fasteners: Standard: Dril-Kwik® – #12-24 X11/16" Flat Head Screws.
- Features: Standard duty for medium frequency doors. Heavy duty for high frequency doors or heavy, medium frequency doors. All for doors 1-3/4” (44 mm) thick.
- Finishes: CLR, DBZ, BLK
- Fire Rating: Up to 3-hour metal and 90 minute wood composite (with studs).
- Length: 7 9", 83", 95"
- Material: Aluminum 6063-T6
- Notes: EPD: Roton Continuous Hinges Environmental Product Declaration
- Options: Hospital Tip
- Subcategory: Continuous Geared Hinges
- Warranty: Wll Roton products have a lifetime warranty. When ordering electric Roton, the electric portion of the hinge has a one-year warranty.
Installation & Operation
- Review manufacturer specifications and verify door preparation requirements including door thickness (1-3/4" maximum), frame construction, and hinge mounting locations.
- Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces, ensuring proper alignment with frame and door leaf alignment ribs.
- Prepare door and frame by drilling required holes for standard Dril-Kwik #12-24 X 11/16" flat head screws or optional fasteners as specified.
- Install hinge using provided fasteners, ensuring proper engagement with alignment ribs for correct door positioning and 5/16" hinge side clearance.
- For doors over 200 lbs, install 16-gauge channel reinforcement as required for proper support and operation.
- Test hinge operation throughout full door swing to verify smooth movement, proper alignment, and secure mounting. Refer to manufacturer documentation for complete installation details and electric modification procedures if applicable.
Professional Applications
- Commercial Office Buildings
- Educational Facilities
- Healthcare Institutions (including specialized x-ray room applications)
- Industrial and Warehouse Facilities
- High-Traffic Commercial Entrances
- Fire-Rated Door Assemblies
- Heavy-Duty Door Applications
Why Choose Hager Quality?
Hager 780-112HD continuous hinges deliver professional-grade reliability with aluminum 6063-T6 construction engineered for demanding high-frequency applications. All Roton products include a lifetime warranty with specialized one-year coverage for electric components when applicable. Designed to meet ANSI/BHMA A156.26 C standards with fire ratings up to 3 hours, these hinges provide dependable performance for commercial applications where consistent operation and code compliance are essential.
Hager's Roton® continuous geared hinge distributes door weight along the full hinge length, minimizing lateral wear in high-traffic applications.Support Resources
Manufacturer Resources
Product Specs
- Subcategory:
- Continuous Geared Hinges
- Warranty:
- All Roton products have a lifetime. When ordering electric Roton, the electric portion of the hinge has a one Year.
- Product Group:
- Door Hinges and Pivots
- Product Subgroup:
- Continuous Hinges
- Product Type:
- Concealed Hinges
- Commercial/Residential:
- Commercial
- Product Model:
- 780-112HD
- Product Category:
- Door Hinges and Pivots
- Product Substrate:
- Aluminum
- Department:
- Door Hardware