LCN 4021T Heavy Duty Door Closer with Single Lever Arm and Plated Finish

LCN 4021T Heavy Duty Door Closer with Single Lever Arm and Plated Finish

Professional Grade 1 Surface-Mounted Door Closer Solution

The LCN 4021T is a heavy-duty surface-mounted door closer featuring a single lever arm design with premium plated finish. This Grade 1 device is constructed with cast iron cylinder and 1-1/2" diameter piston for demanding high-traffic interior applications. Certified to ANSI/BHMA A156.4 Grade 1 standards and UL listed, this closer accommodates interior doors up to 5'0" and exterior doors up to 4'0" with sized cylinders.

Professional Features & Benefits

• Heavy-Duty Cast Iron Construction: Cast iron cylinder with full-complement bearing and 1-1/2" diameter piston provides exceptional durability for high-traffic commercial applications.
• Grade 1 Performance Rating: ANSI/BHMA A156.4 Grade 1 certification and UL/cUL listing ensures compliance with the highest commercial door closer standards.
• 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".
• Premium Plated Finish: Optional plated finish on metal cover, arm and fasteners provides enhanced aesthetics and corrosion resistance for professional installations.
• LCN Green Dial Spring Force Indicator: Patented spring force indicator eliminates guesswork during adjustment and ensures optimal closing performance.
• All-Weather Fluid Technology: Specialized hydraulic fluid maintains consistent performance across temperature variations for reliable operation.
• 30-Year Manufacturer Warranty: Comprehensive warranty coverage provides long-term confidence and protection for commercial installations.
• ADA Compliance: Meets Americans with Disabilities Act requirements for accessible door operation in commercial facilities.

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/or 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 cast iron construction and double heat-treated steel pinion journal engineered for demanding commercial applications. Backed by a comprehensive 30-year warranty and certified to Grade 1 standards, LCN closers provide dependable performance where consistent door control is essential.

Product Documentation & Resources

• [Catalog] LCN Full Line Catalog