LCN 4021 Heavy Duty Surface-Mounted Door Closer with Powder Coat Finish and Green Dial Spring System
Professional Heavy-Duty Door Closing Solution
The LCN 4021 Heavy Duty Surface-Mounted Door Closer delivers reliable performance for high-traffic commercial applications with Grade 1 certification and adjustable spring power. This professional door closer accommodates interior doors up to 5'0" and exterior doors up to 4'0" using the patented LCN Green Dial system. Built with cast iron construction and a 1-1/2" diameter piston, it meets ANSI/BHMA A156.4 Grade 1 standards with UL and cUL listings for demanding commercial installations.
Professional Features & Benefits
- Door Size Compatibility: Accommodates interior doors up to 5'0" and exterior doors up to 4'0" for versatile commercial applications.
- Heavy-Duty Construction: Cast iron cylinder with full-complement bearing and 1-1/2" diameter piston provides exceptional durability for high-traffic use.
- Adjustable Spring Power: LCN patented Green Dial Spring force indicator eliminates guesswork and allows custom adjustment for specific application demands.
- Grade 1 Certification: Tested and certified under ANSI/BHMA A156.4 Grade 1 standards with UL and cUL listings for code compliance.
- All-Weather Performance: All-weather fluid ensures consistent operation across temperature variations and environmental conditions.
- ADA Compliance: Meets ADA requirements for accessible door operation in commercial facilities.
- Manufacturer Warranty: 30-year warranty provides long-term confidence and protection for commercial installations.
- Professional Installation Features: Application-specific handed design with peel-n-stick template and standard plastic cover for efficient installation.
Technical Specifications
- ADA Compliant: Yes
- BAA Qualified: Yes
- Closer Size: 1
- Closer Size: 4
- Closer Size: 3
- Closer Size: 2
- Closer Size: 5
- Commercial/Residential: Commercial
- Cover Type: Plastic/Metal
- Delay Function: Yes
- Department: Door Hardware
- Duty Level: Heavy Duty
- Finish Type: Powder Coat
- Fluid Type: All-Weather
- MAP Policy: Yes
- Mounting Detail: Surface - Top Jamb (Push Side)
- Mounting Hole Pattern: 2-1/2" x 6"
- Mounting Location: Pull Side
- Mounting Method: Surface Mount
- Product Category: Door Controls
- Product Group: Door Controls
- Product Model: 4021
- Product Subgroup: Door Closers - Surface Mounted
- Product Substrate: Iron
- Product Type: Surface Mounted Door Closers
- Series: 4020 Series
- Subcategory: Door Closers - Surface Mounted
- Warranty: 30 Year
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 rated for demanding commercial applications. The 30-year warranty demonstrates LCN's commitment to long-term performance where dependable door control is essential.
Manufacturer Resources
Product Specs
- Series:
- 4020 Series
- Duty Level:
- Heavy Duty
- ADA Compliant:
- Yes
- BAA Qualified:
- Yes
- Mounting Hole Pattern:
- 2-1/2" x 6"
- Warranty:
- 30 Year
- Closer Size:
- 1
- Mounting Detail:
- Surface - Top Jamb (Push Side)
- Mounting Location:
- Pull Side
- Subcategory:
- Door Closers - Surface Mounted
- Product Group:
- Door Controls
- Product Subgroup:
- Door Closers - Surface Mounted
- Product Type:
- Surface Mounted Door Closers
- Finish Type:
- Powder Coat
- Fluid Type:
- All-Weather
- Commercial/Residential:
- Commercial
- MAP Policy:
- Yes
- Closer Size:
- 2
- Closer Size:
- 3
- Closer Size:
- 4
- Closer Size:
- 5
- Product Model:
- 4021
- Cover Type:
- Plastic/Metal
- Delay Function:
- Yes
- Mounting Method:
- Surface Mount
- Product Category:
- Door Controls
- Product Substrate:
- Iron
- Department:
- Door Hardware