LCN 4021-PLATED Heavy Duty Sur...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,323.00
$1,123.96
LCN LCN 4021 Surface-Mounted Heavy Duty Door Closer - Plated Finish LCN-4021-PLATED

LCN 4021-PLATED Heavy Duty Surface-Mounted Door Closer with Plated Finish and Green Dial Adjustment

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Model: 4021-652
$1,323.00
$1,123.96
Selected Finish is
Selected Handing is
  • LCN ADDER-LCN-4020-[CYLINDER]=Cast Iron Cylinder Assembly (CYL) ADDER-LCN-4020-[CYLINDER]=Cast Iron Cylinder Assembly (CYL)
  • LCN ADDER-LCN-4020 Series-[CYLINDER]=Delay Action Cylinder (MC) ADDER-LCN-4020 Series-[CYLINDER]=Delay Action Cylinder (MC)
  • LCN ADDER-LCN-4020-[ARM]=Regular Arm (REGARM) ADDER-LCN-4020-[ARM]=Regular Arm (REGARM)
  • LCN ADDER-LCN-4020-[ARM]= Long Arm (LONG) ADDER-LCN-4020-[ARM]= Long Arm (LONG)
  • LCN ADDER-LCN-4020-[ARM]=Hold Open Arm (H) ADDER-LCN-4020-[ARM]=Hold Open Arm (H)

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,323.00
$1,123.96
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LCN 4021 Heavy Duty Surface-Mounted Door Closer with Plated Finish and Green Dial Adjustment

Professional Heavy-Duty Door Closing Solution

The LCN 4021 Heavy Duty Surface-Mounted Door Closer delivers reliable performance for high-traffic commercial applications with ANSI/BHMA Grade 1 certification. This professional-grade closer accommodates interior doors up to 5'0" and exterior doors up to 4'0" using adjustable spring power with the patented LCN Green Dial system. Built with cast iron cylinder construction and a 1-1/2" diameter piston, this closer meets UL and cUL listing requirements and includes a comprehensive 30-year warranty.

Professional Features & Benefits

  • Door Size Compatibility: Sized cylinders accommodate interior doors to 5'0" and exterior doors to 4'0" for versatile installation options.
  • Heavy-Duty Construction: Cast iron cylinder with full-complement bearing and 1-1/2" diameter piston provides exceptional durability for commercial applications.
  • Adjustable Spring Power: LCN patented Green Dial Spring force indicator eliminates guesswork during adjustment and creates custom fit for specific application demands.
  • Premium Plated Finish: Optional plated finish on metal cover, arm and fasteners provides enhanced appearance and corrosion resistance.
  • Grade 1 Certification: Tested and certified under ANSI/BHMA A156.4 Grade 1 standards for demanding commercial installations.
  • All-Weather Performance: All-weather fluid ensures reliable operation in varying environmental conditions.
  • Manufacturer Warranty: 30-year warranty provides long-term confidence and protection for commercial applications.
  • ADA Compliance: Meets ADA requirements for accessible door operation in commercial facilities.

Technical Specifications

  • ADA Compliant: Yes
  • BAA Qualified: Yes
  • Closer Size: 1
  • Closer Size: 2
  • Closer Size: 5
  • Closer Size: 3
  • Closer Size: 4
  • Commercial/Residential: Commercial
  • Cover Type: Metal
  • Delay Function: Yes
  • Department: Door Hardware
  • Duty Level: Heavy Duty
  • Finish Type: Plated
  • 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 closer products deliver professional-grade reliability with cast iron cylinder construction and double heat-treated steel pinion journal rated for demanding commercial use. The comprehensive 30-year warranty demonstrates LCN's commitment to long-term performance. Engineered for demanding commercial applications where dependable performance is essential.

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:
Plated
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:
Metal
Delay Function:
Yes
Mounting Method:
Surface Mount
Product Category:
Door Controls
Product Substrate:
Iron
Department:
Door Hardware

LCN 4021-652 – Frequently Asked Questions

1) What size door will the LCN 4021 door closer handle?
The LCN 4021 uses sized cylinders covering closer sizes 1 through 5, which handles interior doors up to 5'0" wide and exterior doors up to 4'0" wide. Spring power is adjusted with LCN's Green Dial indicator, so you can dial the force to the actual opening instead of guessing at it.
2) Do I have to specify handing when ordering the LCN 4021?
Yes, handing is a required selection: right hand (RH) is the default and left hand (LH) is the alternative. Stand outside the door on the side it swings away from you and note which edge the hinges are on before you order.
3) Can I get the LCN 4021 with delayed closing for accessibility?
Yes. Order the delay action cylinder (CYLDEL) instead of the standard cast iron cylinder assembly, and the door holds near full open briefly before it starts to close. That is the setup people specify for healthcare corridors, wheelchair traffic, and carts. The closer is ADA compliant as supplied.
4) Is the LCN 4021 rated for high traffic entrances?
It is a heavy duty commercial closer with a cast iron cylinder, full complement bearing, and a 1-1/2" diameter piston, certified to ANSI/BHMA A156.4 Grade 1 and UL and cUL listed. That is the construction you want on school, hospital, and office entries that cycle all day.
5) I need an adjustable size 1-6 closer instead of a sized 1-5 unit. What should I look at?
The LCN 4021 uses sized cylinders in sizes 1 through 5. If you want a single closer that covers through size 6, the BEST EHD9000 Series is an extra heavy duty Grade 1 surface closer with adjustable spring sizes 1-6, and the Norton Rixson 8501A is a Grade 1 tri-mount surface closer with an adjustable size 1-6 spring. The Dormakaba 8916-JT is also Grade 1 heavy duty adjustable size 1-6.
6) My opening needs a slide track arm rather than a regular arm. Does the LCN 4021 work, and what else would?
The LCN 4021 is offered with regular, long, and hold open arms and mounts pull side or top jamb push side. If the detail calls for a slide track, the Corbin Russwin DC5230 Series is a Grade 1 surface closer with a slide track arm standard for pull side mounting, and the Dormakaba 8916-JT uses a jamb track with frame face mounting on the pull side.
7) Is the Cal-Royal 400 Series a direct substitute for the LCN 4021?
No. The Cal-Royal 400 Series is a Grade 2 commercial hydraulic door closer, while the LCN 4021 is certified to ANSI/BHMA A156.4 Grade 1 for heavy duty commercial use. If a Grade 1 Cal-Royal is what the spec needs, the 700S Series is a Grade 1 dual valve sized closer with an adjustable tube arm and the 500S is a Grade 1 barrier free closer with adjustable back-check.
8) What arm options are available on the LCN 4021 door closer?
Three arm choices: regular arm (the default), long arm, and hold open arm. Pick the hold open arm where staff need the door to stay propped at a set angle, and the long arm when the top jamb or frame reveal puts the shoe out of reach of the standard arm.
9) Will the LCN 4021 work on an exterior door in cold weather?
Yes, it is charged with all weather fluid, so closing speed stays consistent across temperature swings rather than slowing to a crawl in winter. Exterior use is rated to 4'0" door width.
10) What finishes does the LCN 4021 plated closer come in?
Six plated finishes on the metal cover, arm and fasteners: 632 bright brass, 633 satin brass, 639 satin bronze, 646 satin nickel, 651 bright chrome, and 652 satin chrome. Useful when the closer has to match existing lever and hinge finishes across a floor rather than disappear behind a painted cover.
11) Is the LCN 4021 approved for federal government projects?
It is BAA qualified, which is what federal and municipal procurement typically asks for on Buy American Act jobs. Grade 1 certification under ANSI/BHMA A156.4 covers the performance side of most institutional specs.
12) How does the LCN 4021 compare to other heavy duty surface closers like the Sargent 281 or BEST HD8000?
All three are heavy duty surface closers. The LCN 4021 uses a sized cast iron cylinder in sizes 1 through 5 with the Green Dial spring indicator. The Sargent 281 Powerglide is a cast iron heavy duty Grade 1 closer, and the BEST HD8000 Series is a Grade 1 heavy duty closer as well. BEST also offers the EHD9000 Series as an extra heavy duty option with adjustable spring sizes 1-6 if the opening is wider or takes abuse. Falcon's SC71A is another heavy duty Grade 1 surface closer.
13) The LCN 4021 is more closer than I need for a light interior office door. What is a lighter option?
For lighter openings, the Falcon SC91A is a light duty Grade 3 cast aluminum surface closer, and the Norton Rixson 160 Series is a light commercial Grade 1 surface closer with an adjustable spring. The BEST SL6000 Series is another light duty Grade 1 surface closer with adjustable spring sizes. The LCN 4021 by contrast is a heavy duty commercial closer with a cast iron cylinder.
14) Which closers can be ordered as a tri-pack so one unit covers regular, parallel, and top jamb mounting?
The LCN 4021 is specified with the arm and mounting chosen up front - regular, long, or hold open arm, pull side or top jamb push side. If you would rather stock one box that covers all three mountings, the Dexter DCH1000 Series is a Grade 1 tri-mount surface closer with full cover, and the Arrow DCN325 is a Grade 1 surface closer supplied regular/parallel arm tri-pack with adjustable spring size 1-6.
15) I need delayed action. Is the LCN 4021 the only choice?
The LCN 4021 can be ordered with a delay action cylinder in place of the standard cast iron cylinder assembly. If you are comparing, the Orca Hardware BHDC1958DA/PA is a delayed action closer with a regular arm and parallel bracket, and the BHDC2011DA/PA is the same delayed action configuration in the BHDC2011 series.
16) What is a mid-range alternative if the LCN 4021 is heavier than the opening needs but Grade 1 is still required?
Medium duty Grade 1 closers that sit between light commercial and the heavy duty LCN 4021 include the Sargent 1131 for medium-traffic commercial applications, the Sargent 1331 with a universal aluminum body, the BEST HD7000 Series with adjustable spring power and backcheck control, and the Falcon SC81A medium duty cast aluminum closer.
17) I want a hold open closer to match the LCN 4021 on other doors. What are my options?
The LCN 4021 can be ordered with a hold open arm instead of the regular or long arm. Comparable hold open surface closers include the Accentra 51 Series with a tri-packed hold open arm in sizes 1-6, the Orca Hardware BHDC1958HO/PA hold open closer with parallel bracket, and the Stanley Security A45-501HL with a long hold open arm for top jamb mounting.
18) Is the Arrow DCN500DP drop plate an alternative to the LCN 4021?
No. The Arrow DCN500DP is a parallel drop plate accessory for the DCN500 closer, not a closer itself. The LCN 4021 is a complete heavy duty surface mounted closer with cast iron cylinder, arm, and cover. If you are shopping Arrow closers, the DCN325 is a Grade 1 surface closer with adjustable spring size 1-6.
19) Does the LCN 4021 come with a cover?
Yes, a metal cover is part of the closer and it carries the same plated finish as the arm and fasteners. If you would rather not pay for a cover on a back-of-house door, the Arrow DCN314 and DCN325 are sold less cover.
20) The LCN 4021 has a metal cover. Which comparable closers come without one?
The LCN 4021 is supplied with a metal cover, and the plated finish is applied to the cover, arm, and fasteners. If a cover is not wanted, the Arrow DCN314 and DCN325 are Grade 1 surface closers supplied less cover with regular/parallel arm tri-pack. For a covered alternative, the Design Hardware 316 Series is a heavy duty closer supplied with a cover.
How fast can I get the LCN 4021-652 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 4021-652 come with a warranty?
Absolutely. The LCN 4021-652 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 4021-652?
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 4021-652 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.
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