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Hager 780-224HD Roton Concealed Leaf Continuous Geared Hinge — Heavy Duty, 83" & 95", Clear Anodized Aluminum
The Hager 780-224HD is a heavy-duty, concealed-leaf continuous geared hinge from the Hager Roton 780 Series — one of the most specified aluminum geared continuous hinge lines for high-traffic commercial openings. Unlike a conventional butt hinge or a piano hinge, the Roton's two full-height geared leaves interlock and rotate together on high-strength bearings, distributing door weight and closer kickback stress uniformly along the entire height of the door and frame. The result: no door sag, no binding, and no concentrated stress at individual hinge points. Available in 83" and 95" lengths, this model is finished in Clear Anodized Aluminum (US28 / 628) and is suitable for 1-3/4" doors up to 300 lbs. Certified to ANSI/BHMA A156.26 Grade 1 and UL fire listed for rated assemblies.
Institutional Grade Features & Benefits
- Concealed Leaf Design: Both geared leaves are mortised into the door and frame edges, rendering the hinge mechanism invisible from the pull side when the door is closed — delivering a clean, tamper-resistant appearance ideal for schools, healthcare, and government facilities.
- Heavy Duty (HD) Rating: Engineered for the highest-cycle commercial and institutional openings, rated to support doors up to 300 lbs — handles the repeated stress of closer-equipped, high-traffic doors without performance degradation.
- Full-Length Gear Engagement: Identical geared-leaf rotation top to bottom eliminates the twisting and racking that causes conventional hinges to loosen over time; the hinge itself acts as structural reinforcement for both door and frame.
- UL Fire Listed: Suitable for use on fire-rated door assemblies; verify assembly listing against the authority having jurisdiction (AHJ) requirements.
- ANSI/BHMA A156.26 Grade 1: The highest commercial grade for continuous geared aluminum hinges — the benchmark specification for architects and facility managers.
- Clear Anodized Aluminum Finish (US28 / 628): Corrosion-resistant extruded aluminum construction with a durable anodized finish; well suited for high-humidity and high-traffic environments.
- Two Stocked Lengths — 83" and 95": Available through the HagerOnHand Express quick-ship program for 1–2 business day dispatch; non-standard lengths and electric/monitored options are available on a factory lead time.
- 1-3/4" Door Thickness: Designed for the standard commercial hollow metal and wood door thickness found in the majority of commercial and institutional openings.
Typical Applications
The 780-224HD is specified wherever high-cycle performance, fire rating compliance, and a clean concealed appearance are required simultaneously: school corridor doors, hospital patient-room doors, government and courthouse entries, detention corridors, library stacks, and high-traffic retail or hospitality back-of-house doors. The concealed leaf profile is frequently specified in lieu of exposed surface-mount continuous hinges where aesthetics, vandal resistance, or security on the pull side are priorities.
Technical Details
| Feature | Details |
|---|---|
| Model Number | 780-224HD |
| Brand / Series | Hager Roton 780 Series |
| Hinge Type | Concealed Leaf Continuous Geared Hinge (Full Mortise) |
| Grade / Duty | Heavy Duty (HD) — ANSI/BHMA A156.26 Grade 1 |
| Available Lengths | 83 Inch / 95 Inch |
| Finish | Clear Anodized Aluminum — US28 / 628 |
| Door Thickness | 1-3/4" |
| Maximum Door Weight | 300 lbs |
| Leaf Weight / Thickness | Heavy Weight (.180 to .190) |
| Fire Rating | UL Fire Listed |
| Quick-Ship Program | HagerOnHand Express — 1–2 business day ship (83" and 95" stocked) |
| Length | 83 Inch or 95 Inch |
| Brand | Hager |
| Door Thickness | 1-3/4" Dr Thickness |
| General - US Finishes | US28 - 628/ Anodized Aluminum |
| Hinge Type | Concealed, Continuous Hinge |
| Continuous Hinge Grade | Heavy Duty |
| Hinge Grade/Thickness | Heavy Wt .180 to .190 |
| Fire Rated | Fire Rated |
| Maximum Weight of Door | 300 Lbs |
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