LCN 4021T Heavy Duty Surface-Mounted Door Closer with Single Lever Arm and 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
- Door Size Compatibility: Sized cylinders for interior doors up to 5'0" and exterior doors up to 4'0", with non-sized cylinder adjustable for interior doors to 4'6" and exterior doors to 3'6".
- 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 Certification: Tested and certified under ANSI/BHMA A156.4 Grade 1 standards for superior reliability and long-term operation in demanding commercial applications.
- 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 for reliable operation.
- 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.
- Manufacturer Warranty: 30 Year comprehensive warranty coverage provides long-term protection and confidence in product reliability.
Technical Specifications
- ADA Compliant: Yes
- BAA Qualified: Yes
- Closer Size: 1
- Commercial/Residential: Commercial
- Cover Type: Plastic/Metal
- Delay Function: No
- Department: Door Hardware
- Duty Level: Heavy Duty
- Finish Type: Powder Coat
- Fluid Type: All-Weather
- Handle Type: Lever
- MAP Policy: Yes
- Mounting Detail: Surface - Top Jamb (Pull 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: 4021T
- Product Subgroup: Door Closers - Surface Mounted
- Product Substrate: Iron
- Product Type: Surface Mounted Door Closers
- Series: 4020T Series
- Subcategory: Surface Mounted Closers
- 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 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.
Manufacturer Resources
Product Specs
- Series:
- 4020T 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 (Pull Side)
- Mounting Location:
- Pull Side
- Subcategory:
- Surface Mounted Closers
- 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
- Handle Type:
- Lever
- MAP Policy:
- Yes
- Product Model:
- 4021T
- Cover Type:
- Plastic/Metal
- Delay Function:
- No
- Mounting Method:
- Surface Mount
- Product Category:
- Door Controls
- Product Substrate:
- Iron
- Department:
- Door Hardware