LCN 3033 Concealed Door Closer with Double Lever Arm - Plated Finish

LCN 3033 Concealed Door Closer with Double Lever Arm - Plated Finish

Professional Concealed Door Closer for Interior Applications

The LCN 3033 Concealed Door Closer delivers superior door control through its double lever arm design, engineered for installation within 1-3/4" interior doors. This Grade 1 certified closer features a cast iron cylinder with 1-1/8" diameter forged steel piston, providing reliable performance for medium- to high-traffic commercial applications. ANSI/BHMA A156.4 Grade 1 certified and ADA compliant, this closer accommodates doors up to 4'0" with separate regulation of closing speed and latching speed.

Professional Features & Benefits

• Door Compatibility: Designed for concealed installation in 1-3/4" interior doors up to 4'0" width for versatile commercial applications.
• Heavy-Duty Construction: Cast iron cylinder with 1-1/8" diameter forged steel piston and full-complement bearing for exceptional durability and smooth operation.
• Superior Door Control: Double lever arm design provides optimal door control with separate regulation of general closing speed and latching speed for precise operation.
• Grade 1 Performance: ANSI/BHMA A156.4 Grade 1 certified and UL/cUL listed for self-closing doors, meeting the highest commercial standards.
• ADA Compliance: Meets American Disabilities Act reduced opening force requirements for accessible building design.
• All-Weather Reliability: All-weather fluid and tamper-resistant regulating screws ensure consistent performance across temperature variations.
• Plated Finish Option: Optional plated finish on arm and fasteners provides enhanced corrosion resistance and aesthetic appeal.
• Manufacturer Warranty: 15-year limited warranty provides long-term confidence and protection for commercial installations.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness of 1-3/4" and handing for right- or left-swinging doors.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for concealed installation.
3. Prepare door by drilling required holes and routing as specified in manufacturer instructions for proper closer body concealment.
4. Install all mounting hardware including wood and torx security screws, securing the closer body within the door per manufacturer specifications.
5. Mount the double lever arm assembly and adjust for proper alignment with door frame and smooth operation throughout the full range of motion.
6. Test closer operation and adjust closing speed and latching speed regulation screws for optimal performance. Refer to manufacturer documentation for complete installation details and spring size selection guidance.

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 3033 door closers deliver professional-grade reliability with cast iron construction and forged steel components engineered for demanding commercial applications. The 15-year limited warranty and Grade 1 certification demonstrate LCN's commitment to quality and performance. Designed for medium- to high-traffic areas where dependable door control and ADA compliance are essential.

Product Documentation & Resources

• [Catalog] LCN Full Line Catalog