LCN 4511-PLATED Heavy Duty High Security Surface-Mounted Door Closer with Plated Finish and Tamper-Resistant Design

LCN 4511 Heavy Duty High Security Surface-Mounted Door Closer with Plated Finish and Tamper-Resistant Design

Professional High-Security Door Closing Solution

The LCN 4511 Heavy Duty High Security Surface-Mounted Door Closer delivers exceptional vandal resistance and security for demanding institutional applications. Engineered with forged steel double lever arms and heavy gauge metal security covers, this closer is sized for interior doors to 5'0" and exterior doors to 4'0". Meeting ANSI/BHMA A156.4 Grade 1 standards and UL listed for self-closing doors, it features cast iron body construction with LCN's patented Green Dial spring force indicator for precise adjustments.

Professional Features & Benefits

• 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".
• Heavy-Duty Security Construction: Forged steel double lever arms and heavy gauge metal security covers resist tampering and vandalism in correctional and institutional environments.
• Grade 1 Performance: ANSI/BHMA A156.4 Grade 1 certification and UL listing ensure reliable self-closing operation for high-traffic applications.
• Premium Materials: High-strength cast iron cylinder, one-piece forged steel piston, and double-heat-treated pinion provide exceptional durability and longevity.
• All-Weather Operation: All-weather fluid and full-complement, low-friction bearing system ensure consistent performance in varying environmental conditions.
• Tamper-Resistant Design: Tamper-resistant regulating screws and security cover with TORX machine screw pack minimize unauthorized adjustments.
• Precision Adjustment: LCN patented Green Dial spring force indicator enables accurate spring force adjustments for optimal door operation.
• Manufacturer Warranty: 15 Year warranty provides long-term confidence and protection for institutional investments.

Technical Specifications

• ADA Compliant: Yes
• BAA Qualified: Yes
• Clearance: 2-1/4"
• Closer Size: 1
• Commercial/Residential: Commercial
• Delay Function: Yes
• Department: Door Hardware
• Door Opening Size: 180 Degrees
• Door Type: Exterior Door
• Door Type: Interior Door
• Duty Level: Heavy Duty
• Fasteners: Torx Machine Screws (TORX)
• Finish Type: Plated
• Fluid Type: All-Weather
• Mounting Detail: Surface - Hinge (Pull Side)
• Mounting Location: Pull Side
• Mounting Method: Surface Mount
• Product Category: Door Controls
• Product Group: Door Controls
• Product Model: 4511
• Product Subgroup: Door Closers - Surface Mounted
• Product Substrate: Iron
• Product Type: Surface Mounted Door Closers
• Series: 4510 Series
• Subcategory: High Security Closers
• Warranty: 15 Year

Professional Applications

• Correctional Facilities
• Institutional Buildings
• High-Traffic Commercial Entrances
• Vandal-Prone Environments
• Educational Facilities
• Healthcare Institutions
• Government and Municipal Buildings

Tamper-Resistant Design

The 4511 features specialized components designed to minimize tampering and vandalism including tamper-resistant regulating screws, heavy gauge metal security covers, and forged steel construction. The security cover with TORX machine screw pack provides additional protection against unauthorized access to adjustment mechanisms.

Why Choose LCN Quality?

LCN 4511 door closers deliver professional-grade reliability with high-strength cast iron construction and forged steel components engineered for demanding correctional and institutional applications. The 15 Year warranty demonstrates LCN's confidence in long-term performance. Tested and certified under ANSI Standard A156.4 Grade 1 requirements, this closer provides dependable security where vandal resistance and tamper protection are essential.