LCN Grade 1 High Security Overhead Concealed Door Closer with 180° Swing and Enhanced Backcheck
Professional Concealed Door Closer Solution
The LCN Grade 1 High Security Overhead Concealed Door Closer delivers professional-grade door control with hydraulic slide track technology and enhanced security features. This Size 1 closer features 180° swing capability with enhanced backcheck for controlled door operation and includes a durable metal cover with aluminum painted finish for long-lasting performance in commercial applications.
Professional Features & Benefits
- Grade 1 Security Rating: BHMA Grade 1 certification ensures maximum security and durability for high-traffic commercial applications.
- 180° Swing Capability: Full 180-degree door swing range provides maximum accessibility and operational flexibility.
- Enhanced Backcheck: Advanced backcheck feature prevents door damage from excessive opening force and provides smooth, controlled operation.
- Concealed Installation: Overhead concealed mounting maintains clean architectural lines while providing reliable door control.
- Hydraulic Slide Track Technology: Precision hydraulic operation ensures consistent closing performance and adjustable closing speeds.
- Heavy-Duty Construction: Metal cover with aluminum painted finish provides exceptional durability and corrosion resistance.
- Size 1 Configuration: Appropriately sized for standard commercial door applications with reliable closing force.
- Security Track Design: Specialized security track mounting system enhances tamper resistance and operational security.
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 header space for concealed mounting.
- Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame header surfaces.
- Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for concealed installation.
- Install all mounting hardware and secure the closer assembly to door and frame header per manufacturer torque specifications.
- Adjust operational components including closing speed, backcheck, and latching speed for proper alignment and smooth operation throughout the full 180-degree 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
- High-Security Commercial Buildings
- Government and Municipal Facilities
- Financial Institutions
- Healthcare Security Areas
- Educational Administrative Offices
- Corporate Executive Suites
- Controlled Access Commercial Spaces
Why Choose LCN Quality?
LCN door closer products deliver professional-grade reliability with Grade 1 security certification and heavy-duty metal construction designed for demanding commercial applications. The hydraulic slide track technology and enhanced backcheck features ensure consistent, controlled door operation where dependable performance and security are essential.
Product Documentation & Resources
Manufacturer Resources
Product Specs
- Series:
- 4000 Series
- Duty Level:
- Heavy Duty
- ADA Compliant:
- Yes
- BAA Qualified:
- Yes
- Mounting Hole Pattern:
- 2-1/2" x 6"
- Warranty:
- 30 Year
- Closer Size:
- 1
- Mounting Detail:
- Surface - Hinge (Pull Side)
- Mounting Location:
- Pull Side
- Subcategory:
- Surface Mounted Closers
- Product Group:
- Door Controls
- Product Subgroup:
- Clearance Center
- Product Type:
- Surface Mounted Door Closers
- Finish Type:
- Powder Coat
- Fluid Type:
- All-Weather
- Commercial/Residential:
- Commercial
- Segment:
- Door Hardware
- Closer Size:
- 2
- Closer Size:
- 3
- Closer Size:
- 4
- Closer Size:
- 5
- Product Model:
- 4011
- Cover Type:
- Plastic/Metal
- Delay Function:
- Yes
- Mounting Method:
- Surface Mount
- Product Substrate:
- Iron
- Product Category:
- Door Controls
- Department:
- Door Hardware