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LCN 4511 Heavy Duty High Security Surface-Mounted Door Closer with Plated Finish
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: 30-year limited warranty provides long-term confidence and protection for institutional investments.
Technical Specifications
- Refer to manufacturer documentation for complete technical specifications.
Installation & Operation
- Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
- Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
- Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
- Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
- Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
- 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
- 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 30-year limited 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.
Product Documentation & Resources
Manufacturer Resources
LCN Full Line Catalog
Product Specs
- Series:
- 4510 Series
- ADA Compliant:
- Yes
- BAA Qualified:
- Yes
- Clearance:
- 2-1/4"
- Mounting Detail:
- Surface - Hinge (Pull Side)
- Warranty:
- 15 Year
- Closer Size:
- 1
- Mounting Location:
- Pull Side
- Subcategory:
- High Security Closers
- Duty Level:
- Heavy Duty
- Product Group:
- Door Controls
- Product Subgroup:
- Door Closers - Surface Mounted
- Product Type:
- Surface Mounted Door Closers
- Door Type:
- Interior Door
- Finish Type:
- Plated
- Fluid Type:
- All-Weather
- Fasteners:
- Torx Machine Screws (TORX)
- Commercial/Residential:
- Commercial
- Door Type:
- Exterior Door
- Product Model:
- 4511
- Delay Function:
- Yes
- Door Opening Size:
- 180 Degrees
- Mounting Method:
- Surface Mount
- Product Category:
- Door Controls
- Product Substrate:
- Iron
- Department:
- Door Hardware
LCN 4511-652 – Frequently Asked Questions
How fast can I get the LCN 4511-652 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the LCN 4511-652 come with a warranty?
Absolutely. The LCN 4511-652 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the LCN 4511-652?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the LCN 4511-652 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.