LCN 5012 Heavy Duty Concealed Door Closer with Double Lever Arm - Plated Finish

LCN 5012 Heavy Duty Concealed Door Closer with Double Lever Arm - Plated Finish

Professional Concealed Door Closer for High-Traffic Applications

The LCN 5012 Heavy Duty Concealed Door Closer features a double lever arm design engineered for institutional, high-traffic, and weather-exposed applications. This Grade 1 certified closer mounts concealed in the door frame with spring sizes 1-6 available, accommodating interior doors to 5'0" and exterior doors to 4'0". Built with a cast iron cylinder, forged steel components, and all-weather fluid for reliable performance in demanding commercial environments.

Professional Features & Benefits

• Door Size Compatibility: Sized cylinders accommodate interior doors to 5'0" and exterior doors to 4'0" with spring sizes 1-6 available for proper door control.
• Heavy-Duty Construction: Cast iron cylinder with 1-1/2" diameter piston, forged steel main arm, and full-complement low-friction bearing for exceptional durability.
• Grade 1 Performance: Tested and certified under ANSI/BHMA A156.4 Grade 1 standards with UL and cUL listing for self-closing doors without hold-open.
• All-Weather Operation: All-weather fluid and tamper-resistant regulating screws ensure consistent performance in exterior applications and harsh conditions.
• ADA Compliance: Meets American Disabilities Act reduced opening force requirements for accessible door operation.
• Concealed Installation: Mounts concealed in door frame with exposed double lever arm providing superior door control while maintaining clean aesthetics.
• Dual Speed Control: Separate regulation of general closing speed and latching speed for optimized door operation.
• Manufacturer Warranty: 15-year warranty coverage for added confidence and long-term protection.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces.
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
6. 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

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose LCN Quality?

LCN door closers deliver professional-grade reliability with forged steel construction and cast iron cylinders rated for Grade 1 performance under ANSI/BHMA A156.4 standards. Backed by a comprehensive 15-year warranty and UL listing, this closer is engineered for demanding commercial applications where dependable door control and long-term durability are essential.

Product Documentation & Resources

• [Catalog] LCN Full Line Catalog