LCN 4211 Heavy Duty High Security Door Closer with Plated Finish
Professional High-Security Door Closing Solution
The LCN 4211 Heavy Duty High Security Door Closer delivers professional-grade performance for correctional, institutional, and high-traffic applications. This surface-mounted closer features forged steel parallel arms, heavy gauge metal security covers, and meets ANSI/BHMA A156.4 Grade 1 standards. Sized cylinders accommodate interior doors to 5'0" and exterior doors to 4'0", while the cast iron body construction with tamper-resistant components provides exceptional durability in vandal-prone environments.
Professional Features & Benefits
- Door Size Compatibility: Sized cylinders for interior doors to 5'0" and exterior doors to 4'0" with non-sized cylinder adjustable for interior doors to 4'6" and exterior doors to 3'6".
- High-Security Construction: Forged steel parallel arms and heavy gauge metal security covers designed specifically for correctional, vandal-prone, and institutional applications.
- Grade 1 Certification: Tested and certified under ANSI Standard A156.4, Grade 1 for demanding commercial applications with UL and cUL listing for self-closing doors.
- Tamper-Resistant Design: Special components including tamper-resistant regulating screws, security covers, and TORX machine screw pack to resist vandalism and unauthorized adjustment.
- Premium Materials: High-strength cast iron cylinder, one-piece forged steel piston, double-heat-treated pinion, and high-efficiency full-complement low-friction bearing for long-term reliability.
- All-Weather Performance: All-weather fluid ensures consistent operation across temperature extremes with LCN patented Green Dial spring force indicator for accurate adjustments.
- ADA Compliance: Meets American Disabilities Act requirements for accessible door operation in commercial applications.
- Extended Warranty: 15-year warranty provides long-term protection and confidence in demanding institutional environments.
Technical Specifications
- Refer to manufacturer documentation for complete technical specifications.
Installation & Operation
- Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
- Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
- Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
- Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
- Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
- 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
- Correctional Facilities
- Institutional Buildings
- High-Traffic Commercial Entrances
- Vandal-Prone Environments
- Educational Facilities
- Healthcare Institutions
- Government and Municipal Buildings
Tamper-Resistant Design
The LCN 4211 incorporates specialized tamper-resistant regulating screws and heavy gauge metal security covers to prevent unauthorized adjustments and vandalism. The forged steel construction and TORX machine screw pack provide additional security in high-risk environments where standard door hardware may be compromised.
Why Choose LCN Quality?
LCN 4211 door closers deliver professional-grade reliability with cast iron body construction, forged steel components, and Grade 1 certification for the most demanding applications. The 15-year warranty and all-weather fluid formulation ensure consistent performance in correctional and institutional environments. Engineered for demanding commercial applications where dependable performance and security are essential.
Product Documentation & Resources
Manufacturer Resources
Product Specs
- Series:
- 4210 Series
- ADA Compliant:
- Yes
- BAA Qualified:
- Yes
- Mounting Detail:
- Surface - Parallel (Push Side)
- Warranty:
- 15 Year
- Closer Size:
- 1
- Mounting Location:
- Push Side
- Subcategory:
- High Security Closers
- Duty Level:
- Heavy Duty
- Product Group:
- Door Controls
- Product Subgroup:
- Door Closers - Surface Mounted
- Product Type:
- Surface Mounted Door Closers
- Door Type:
- Interior Door
- Finish Type:
- Plated
- Fluid Type:
- All-Weather
- Fasteners:
- Torx Machine Screws (TORX)
- Commercial/Residential:
- Commercial
- Door Type:
- Exterior Door
- Product Model:
- 4211
- Delay Function:
- Yes
- Door Opening Size:
- 180 Degrees
- Mounting Method:
- Surface Mount
- Product Category:
- Door Controls
- Product Substrate:
- Iron
- Department:
- Door Hardware