LCN 3033 Concealed Door Closer with Double Lever Arm - Powder Coat Finish

LCN 3033 Concealed Door Closer with Double Lever Arm - Powder Coat Finish

Professional Concealed Door Closer for Interior Applications

The LCN 3033 Concealed Door Closer delivers professional-grade door control for interior applications requiring superior performance and architectural aesthetics. Designed to mount within 1-3/4" interior doors, this double lever arm closer provides optimal door control with separate regulation of general closing speed and latching speed. ANSI/BHMA A156.4 Grade 1 certified and ADA compliant, the 3033 features cast iron construction with a 1-1/8" diameter forged steel piston for demanding commercial applications.

Professional Features & Benefits

• Door Compatibility: Designed for concealment within 1-3/4" interior doors in medium to high-traffic areas for optimal architectural integration.
• Superior Door Control: Double lever arm design provides exceptional door control with separate regulation of general closing speed and latching speed for precise operation.
• Heavy-Duty Construction: Cast iron cylinder with 1-1/8" diameter forged steel piston and full-complement bearing for long-term reliability in commercial applications.
• Grade 1 Performance: ANSI/BHMA A156.4 Grade 1 certified and ADA compliant for reduced opening force requirements in professional installations.
• All-Weather Durability: All-weather fluid and tamper-resistant regulating screws ensure consistent performance across varying environmental conditions.
• Flexible Spring Sizing: Available in spring sizes 1, 2, 3, or 4 with closing power that may be increased up to 15% for customized door control.
• UL Listed Safety: UL and cUL listed for self-closing doors without hold-open for code compliance and safety assurance.
• Manufacturer Warranty: 15-year limited warranty provides long-term confidence and protection for professional 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 concealment.
4. Install all mounting hardware using provided wood and torx security screws per manufacturer torque specifications.
5. Adjust operational components including general closing speed and latching speed regulation for proper door control 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 cast iron construction and forged steel components rated for Grade 1 performance. Backed by a 15-year limited warranty and UL listing, this concealed closer meets ADA requirements while providing superior door control. Engineered for demanding commercial applications where dependable performance and architectural aesthetics are essential.

Product Documentation & Resources

• [Catalog] LCN Full Line Catalog