Accentra 5821 Grade 1 Cast Iron Door Closer with Heavy Duty Parallel Rigid Stop Arm
The Accentra 5821 Heavy Duty Door Closer (formerly the Yale 5800 Series) is a high-intent, industrial-grade solution designed for the most demanding commercial environments. Built with a rugged Cast Iron body, this closer is engineered to provide maximum durability where lesser aluminum closers fail. The 5821 features a specialized Heavy Duty Parallel Rigid Arm with a Removable Stop, providing a physical mechanical "dead stop" that prevents the door from swinging past a set degree. This protects your door, hinges, and adjacent walls from damage—making it the premier choice for exterior entrances or high-traffic corridors in schools, hospitals, and retail spaces.
As an ANSI/BHMA Grade 1 certified hardware solution, the 5821 is a direct retrofit for the LCN 4040, allowing for a seamless, high-strength upgrade to a more cost-effective yet equally robust door control system without the need for additional drilling.
Elite Mechanical Protection & Industrial Performance
- Rugged Cast Iron Construction: The high-strength cast iron housing offers superior wear resistance and consistent hydraulic performance, even in extreme high-use applications.
- Heavy Duty Parallel Rigid Stop Arm: The reinforced arm includes an integrated stop that prevents over-extension of the door. This eliminates the need for separate floor or overhead stops that can become trip hazards or wall-damaging liabilities.
- Fully Adjustable Spring Power (Sizes 1-6): Provides ultimate flexibility. Tune it to a low opening force for ADA accessibility compliance or maximize the power to secure heavy exterior doors against wind and pressure.
- Triple Valve Precision Control: Features independent, non-critical adjustment valves to customize Closing Speed, Latching Speed, and Backcheck. The Backcheck valve is critical for cushioning the door during a forceful opening, protecting the internal rack-and-pinion mechanism.
- Universal Handing: The non-handed design simplifies the ordering process and job-site installation, fitting both left and right-hand door swings seamlessly.
- Professional Aesthetics: Shipped with a full plastic cover that conceals all mounting fasteners and adjustment valves for a clean, tamper-resistant architectural finish.
Technical Specifications
| Feature | Details |
| Manufacturer | Accentra (Formerly Yale) |
| Model Number | 5821 |
| Arm Type | Heavy Duty Parallel Rigid with Removable Stop |
| Grade | Grade 1 Heavy-Duty (ANSI/BHMA A156.4) |
| Body Material | High-Strength Cast Iron |
| Power Size | Fully Adjustable Sizes 1–6 |
| Mounting | Parallel Arm (Push Side) |
| Retrofit Compatibility | LCN 4040 Mounting Pattern |
| Compliance | UL/cUL 3-Hour Fire Rated, ADA A117.1 |
| Fasteners | Sleeve Nuts (Thru Bolts) included standard |
| Warranty | 10-Year Limited Warranty |
Professional Installation & Structural Integrity
The Accentra 5821 is engineered for a permanent, high-strength attachment. To ensure the hardware remains secure on hollow metal or wood doors that experience extreme physical stress, this unit is shipped standard with sleeve nuts (thru bolts). This "sandwich-style" mounting method provides the structural stability required to prevent the hardware from loosening or pulling through the door over time, ensuring long-term safety and reduced maintenance costs.
| General - US Finishes | 689 - Spray Alumimun or 690 - Spray Dark Bronze |
| Brand | Accentra (formally Yale Security) |
| Series | Accentra - 5800 Series |
| Closer Arm Type | HD Positive Stop |
| Hold Open | Non-Hold Open |
| Closer Body Hole Pattern | 1"/3"/1" x 2 1/4" (LCN 4040) |
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