LCN 4031 Grade 1 Heavy Duty Su...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$671.00
$423.00

LCN 4031 Grade 1 Heavy Duty Surface-Mounted Door Closer with Powder Coat Finish

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Model: 4031-RW/PA-689
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$671.00
$423.00
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LCN 4031 Grade 1 Heavy Duty Surface-Mounted Door Closer with Powder Coat Finish

Professional Grade 1 Door Closer for Commercial Applications

The LCN 4031 Grade 1 Heavy Duty Surface-Mounted Door Closer delivers professional-grade performance with cast iron cylinder construction and forged steel arm design. This universal closer meets ANSI/BHMA A156.4 Grade 1 standards and ADA reduced opening force requirements, featuring a 1-1/8" diameter piston for reliable operation. Sized for interior doors to 5'0" and exterior doors to 4'0", it offers adjustable spring sizes 1-4 with all-weather fluid for consistent performance.

Professional Features & Benefits

  • Grade 1 Certification: Meets ANSI/BHMA A156.4 Grade 1 standards for heavy-duty commercial applications with superior durability and performance.
  • Heavy-Duty Construction: Cast iron cylinder with full-complement bearing and forged steel main arm provide exceptional strength for demanding installations.
  • Precision Engineering: 1-1/8" diameter piston with single heat treated pinion journal ensures smooth, reliable operation throughout the product lifecycle.
  • Door Size Compatibility: Sized cylinders accommodate interior doors to 5'0" and exterior doors to 4'0" with adjustable spring sizes 1-4 for versatile applications.
  • ADA Compliance: Meets ADA reduced opening force requirements for accessible building design and code compliance.
  • All-Weather Performance: All-weather fluid maintains consistent operation across temperature variations and environmental conditions.
  • Universal Installation: Non-handed design with peel-n-stick template simplifies installation on left- or right-swinging doors.
  • Manufacturer Warranty: 30-year limited warranty provides long-term confidence and protection for commercial installations.

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 closer products deliver professional-grade reliability with cast iron cylinder construction and forged steel components tested to ANSI/BHMA A156.4 Grade 1 standards. Backed by a comprehensive 30-year limited warranty and UL/cUL listing for self-closing doors. Engineered for demanding commercial applications where dependable performance and ADA compliance are essential.

Product Documentation & Resources

Product Specs

Series:
4030 Series
Duty Level:
Heavy Duty
ADA Compliant:
Yes
BAA Qualified:
Yes
Mounting Hole Pattern:
1-23/32" x 6-17/64"
Warranty:
30 Year
Closer Size:
1
Mounting Detail:
Surface - Hinge Mount(Pull Side), Top Jamb Mount(Push Side), Parallel Arm Mount(Push 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
MAP Policy:
Yes
Closer Size:
2
Closer Size:
3
Closer Size:
4
Mounting Location:
Push Side
Tags:
lcn 4031 door closer, lcn 4031
Product Model:
4031
Cover Type:
Metal
Delay Function:
No
Mounting Method:
Surface Mount
Product Category:
Door Controls
Product Substrate:
Iron
Department:
Door Hardware

LCN 4031-RW/PA-689 – Frequently Asked Questions

1) What door sizes and weights does the LCN 4031 handle?
The LCN 4031 is designed for heavy-duty applications on doors up to 4 feet wide and weighing up to 150 pounds. Verify your specific door dimensions and weight before ordering to ensure proper performance.
2) Is this closer compatible with aluminum storefront doors?
Yes, the LCN 4031 works well with aluminum storefront doors, hollow metal doors, and wood doors. The surface-mounted design makes installation straightforward on most door types.
3) Can this closer be used for both left and right hand doors?
The LCN 4031 is universal and can be installed on both left-hand and right-hand doors. The closer body and arm can be configured during installation for either handing.
4) What finishes are available for the LCN 4031?
This model features a durable powder coat finish. LCN typically offers finishes in aluminum, bronze, and other architectural colors. Contact us to verify available finish options for your specific needs.
5) What power rating does this door closer provide?
The LCN 4031 is a Grade 1 heavy-duty closer providing superior closing force and durability. This grade rating ensures reliable performance in high-traffic commercial applications.
6) Does this closer meet ADA and building code requirements?
The LCN 4031 can be adjusted to meet ADA opening force requirements when properly installed and adjusted. Verify local building codes and ADA compliance needs with your local authority having jurisdiction.
7) Are replacement parts and accessories available?
Yes, LCN offers replacement arms, brackets, and internal components for the 4031 series. Browse our door hardware section for compatible parts and accessories.
8) What tools are needed for installation?
Basic installation requires a drill, drill bits, screwdriver, and measuring tools. Use the manufacturer's template for precise hole placement. Heavy-duty anchors may be needed for hollow metal doors.
9) How do you adjust the closing speed and latch speed?
The LCN 4031 features separate adjustment valves for closing speed and latch speed. Turn valves clockwise to decrease speed, counterclockwise to increase. Make small adjustments and test door operation after each change.
10) What other LCN closers are similar to the 4031?
The LCN 4040XP and 4110 series offer similar heavy-duty performance with different features. Check our LCN collection for comparable surface-mounted closers.
11) Can this closer handle high-wind conditions?
The heavy-duty construction provides good wind resistance, but extreme conditions may require additional hold-open devices or wind-rated closers. Evaluate your specific wind load requirements before installation.
12) What are the key dimensions for installation planning?
Surface-mounted closers require adequate clearance above and beside the door when open. Consult the manufacturer's installation template for exact measurements and mounting hole locations specific to your door configuration.
How fast can I get the LCN 4031-RW/PA-689 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 4031-RW/PA-689 come with a warranty?
Absolutely. The LCN 4031-RW/PA-689 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 4031-RW/PA-689?
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 4031-RW/PA-689 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.

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Product Reviews

  • 5
    Perfect Fit

    Posted by Brandon R. on Dec 2nd 2025

    Replaced a 20YO discontinued model with this unit and fit perfectly and performs as expected.

  • 5
    Perfect Fit

    Posted by Brandon R. on Dec 2nd 2025

    Replaced a 20YO discontinued model with this unit and fit perfectly and performs as expected.

  • 5
    Perfect Fit

    Posted by Brandon R. on Dec 2nd 2025

    Replaced a 20YO discontinued model with this unit and fit perfectly and performs as expected.