LCN 4021T Heavy Duty Surface-Mounted Door Closer with Single Lever Arm - Powder Coat Finish

LCN 4021T Heavy Duty Surface-Mounted Door Closer with Single Lever Arm - Powder Coat Finish

Professional Grade 1 Door Closer for High-Traffic Commercial Applications

The LCN 4021T is a heavy-duty surface-mounted door closer featuring cast iron construction with a single lever arm design and powder coat finish. This Grade 1 device is engineered for interior high-traffic conditions with a 1-1/2" diameter piston and double heat-treated steel pinion journal. Sized cylinders accommodate interior doors up to 5'0" and exterior doors up to 4'0", while the non-sized cylinder adjusts for interior doors to 4'6" and exterior doors to 3'6". UL and cUL listed with ANSI/BHMA A156.4 Grade 1 certification ensures reliable performance in demanding commercial environments.

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 installations.
• Grade 1 Performance: Tested and certified under ANSI/BHMA A156.4 Grade 1 standards for superior reliability and long-term operation.
• Flexible Door Size Compatibility: Sized cylinders for 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".
• LCN Green Dial Spring Force Indicator: Patented adjustment system eliminates guesswork for precise spring force setting and optimal door operation.
• All-Weather Fluid Technology: Specially formulated fluid ensures consistent performance across varying temperature conditions.
• UL Fire Safety Compliance: UL and cUL listed for self-closing doors with regular or fusible link arms for fire-rated applications.
• ADA Compliant Design: Meets ADA requirements for accessible door operation in commercial facilities.
• 30-Year Manufacturer Warranty: Comprehensive warranty coverage provides long-term protection and confidence in product reliability.

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 components engineered for demanding high-traffic applications. The comprehensive 30-year warranty demonstrates LCN's commitment to long-term performance and customer satisfaction. Certified to ANSI/BHMA Grade 1 standards with UL listing, this closer provides the dependable operation essential for commercial door control systems.

Product Documentation & Resources

• [Catalog] LCN Full Line Catalog