LCN 4511 Heavy Duty High Security Surface-Mounted Door Closer with Powder Coat Finish
Professional High-Security Door Closing Solution
The LCN 4511 Heavy Duty High Security Surface-Mounted Door Closer delivers exceptional performance for correctional, institutional, and high-traffic applications requiring vandal resistance. This Grade 1 certified closer features forged steel double lever arms, heavy gauge metal security covers, and is sized for interior doors to 5'0" and exterior doors to 4'0". UL listed construction with cast iron body and all-weather fluid ensures reliable operation, backed by LCN's 30-year limited warranty.
Professional Features & Benefits
- Door Size Compatibility: Sized cylinders accommodate 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".
- Heavy-Duty Security Construction: Forged steel double lever arms and heavy gauge metal security covers designed specifically for correctional, vandal-prone, and institutional applications.
- Professional-Grade Materials: High-strength cast iron cylinder, one-piece forged steel piston, double-heat-treated pinion, and high-efficiency full-complement low-friction bearing for exceptional durability.
- Tamper-Resistant Design: Special components minimize tampering and vandalism with tamper-resistant regulating screws and security covers for high-risk environments.
- ANSI/BHMA Grade 1 Certification: Tested and certified under ANSI Standard A156.4 Grade 1 for demanding commercial applications with ADA compliance.
- UL Listed Performance: UL and cUL listed for self-closing doors with regular or fusible link arms ensuring code compliance and safety.
- LCN Green Dial Technology: Patented spring force indicator ensures accurate adjustments for optimal door control and consistent performance.
- 30-Year Limited Warranty: Comprehensive manufacturer warranty provides long-term protection and confidence in demanding applications.
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 and Detention Facilities
- Institutional Buildings
- High-Traffic Commercial Entrances
- Vandal-Prone Environments
- Educational Facilities
- Healthcare Institutions
- Government and Municipal Buildings
Tamper-Resistant Design
The 4511 features special components specifically engineered to minimize tampering and vandalism in high-risk environments. Tamper-resistant regulating screws, heavy gauge metal security covers, and forged steel construction provide exceptional resistance to unauthorized adjustment or damage.
Why Choose LCN Quality?
LCN door closers deliver professional-grade reliability with high-strength cast iron construction, forged steel components, and all-weather fluid rated for demanding applications. The comprehensive 30-year limited warranty demonstrates LCN's confidence in their engineering and manufacturing quality. Engineered for demanding commercial applications where dependable performance and security are essential.
Product Documentation & Resources
Manufacturer Resources
Product Specs
- Series:
- 4510 Series
- ADA Compliant:
- Yes
- BAA Qualified:
- Yes
- Clearance:
- 2-1/4"
- Mounting Detail:
- Surface - Hinge (Pull Side)
- Warranty:
- 15 Year
- Closer Size:
- 1
- Mounting Location:
- Pull 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:
- Powder Coat
- Fluid Type:
- All-Weather
- Fasteners:
- Torx Machine Screws (TORX)
- Commercial/Residential:
- Commercial
- Door Type:
- Exterior Door
- Product Model:
- 4511
- Delay Function:
- Yes
- Door Opening Size:
- 180 Degrees
- Mounting Method:
- Surface Mount
- Product Category:
- Door Controls
- Product Substrate:
- Iron
- Department:
- Door Hardware