LCN 4021-POWDER Heavy Duty Sur...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$688.00
$481.06
LCN LCN 4021 Surface-Mounted Heavy Duty Door Closer - Powder Coat Finish LCN-4021-POWDER

LCN 4021-POWDER Heavy Duty Surface-Mounted Door Closer with Powder Coat Finish and Green Dial Spring System

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Model: 4021-REGARM-689-RH
$688.00
$481.06
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$688.00
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LCN 4021 Heavy Duty Surface-Mounted Door Closer with Powder Coat Finish and Green Dial Spring System

Professional Heavy-Duty Door Closing Solution

The LCN 4021 Heavy Duty Surface-Mounted Door Closer delivers reliable performance for high-traffic commercial applications with Grade 1 certification and adjustable spring power. This professional door closer accommodates interior doors up to 5'0" and exterior doors up to 4'0" using the patented LCN Green Dial system. Built with cast iron construction and a 1-1/2" diameter piston, it meets ANSI/BHMA A156.4 Grade 1 standards with UL and cUL listings for demanding commercial installations.

Professional Features & Benefits

  • Door Size Compatibility: Accommodates interior doors up to 5'0" and exterior doors up to 4'0" for versatile commercial applications.
  • Heavy-Duty Construction: Cast iron cylinder with full-complement bearing and 1-1/2" diameter piston provides exceptional durability for high-traffic use.
  • Adjustable Spring Power: LCN patented Green Dial Spring force indicator eliminates guesswork and allows custom adjustment for specific application demands.
  • Grade 1 Certification: Tested and certified under ANSI/BHMA A156.4 Grade 1 standards with UL and cUL listings for code compliance.
  • All-Weather Performance: All-weather fluid ensures consistent operation across temperature variations and environmental conditions.
  • ADA Compliance: Meets ADA requirements for accessible door operation in commercial facilities.
  • Manufacturer Warranty: 30-year warranty provides long-term confidence and protection for commercial installations.
  • Professional Installation Features: Application-specific handed design with peel-n-stick template and standard plastic cover for efficient installation.

Technical Specifications

  • ADA Compliant: Yes
  • BAA Qualified: Yes
  • Closer Size: 1
  • Closer Size: 4
  • Closer Size: 3
  • Closer Size: 2
  • Closer Size: 5
  • Commercial/Residential: Commercial
  • Cover Type: Plastic/Metal
  • Delay Function: Yes
  • Department: Door Hardware
  • Duty Level: Heavy Duty
  • Finish Type: Powder Coat
  • 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 closers deliver professional-grade reliability with cast iron construction and double heat-treated steel components rated for demanding commercial applications. The 30-year warranty demonstrates LCN's commitment to long-term performance where dependable door control 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:
Powder Coat
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:
Plastic/Metal
Delay Function:
Yes
Mounting Method:
Surface Mount
Product Category:
Door Controls
Product Substrate:
Iron
Department:
Door Hardware

LCN 4021-REGARM-689-RH – Frequently Asked Questions

1) Will an LCN 4021 closer handle a 4-foot exterior door?
Yes. The LCN 4021 surface closer is sized for interior doors up to 5'0" wide and exterior doors up to 4'0". Spring power is field adjustable across sizes 1 through 5 using LCN's Green Dial force indicator, so one closer covers a light interior office door and a heavy exterior entrance without swapping units. Set the dial to match the door width and the wind exposure on the opening.
2) Do I have to order the LCN 4021 handed, or is it reversible?
Handed. The 4021 is ordered left hand or right hand, so you need to know which way the door swings before you buy. Stand outside the opening on the side the door swings away from you: if the hinges are on the left it is left hand, hinges on the right is right hand. Order the wrong hand and it will not mount correctly on that opening.
3) Which arm do I order on an LCN 4021, and what does each one do?
Four arm choices on the 4021. Regular arm is the standard pull side arm and gives the most efficient power. Long arm is used where the frame reveal is deeper than a regular arm can reach. Hold open arm keeps the door standing open at a set point, which is what you want on a receiving door or a corridor door that gets propped anyway. Fusible link arm holds the door open but releases and lets it close when heat trips the link, which is the arm used on openings where a hold open has to fail closed. Pick the arm on the order form; it is not something you change later without buying a new arm.
4) Where does the LCN 4021 mount, push side or pull side?
Pull side is the mounting location for the 4021, with a top jamb surface application on the push side also covered. Mounting hole pattern is 2-1/2" x 6". It ships with a peel-n-stick template so you can lay out that pattern on the door or frame without measuring off the drawing.
5) Does the LCN 4021 door closer meet ADA opening force requirements?
Yes, the 4021 is ADA compliant for accessible door operation, and it carries ANSI/BHMA A156.4 Grade 1 certification with UL and cUL listings. For an accessible opening you still have to dial the spring down to the lowest setting that reliably closes and latches the door; the Green Dial indicator shows you what setting you are on rather than leaving it to feel.
6) I need a hold open closer that releases in a fire, what do I order?
Order the 4021 with the FL fusible link arm. It holds the door open in normal use and the link releases under heat so the door closes. Do not use the plain H hold open arm on an opening that has to close during a fire event, that arm holds until someone releases it manually. Confirm the fusible link arm is accepted for your specific opening with the authority having jurisdiction before you install it on a rated door.
7) What is the closest heavy duty Grade 1 surface closer to the LCN 4021 if I need a different brand on the same opening?
The LCN 4021 is a heavy duty surface mounted closer built on a cast iron body with all-weather fluid and adjustable spring sizes 1 through 5. The nearest heavy duty Grade 1 peers are the Sargent 281 Powerglide, also a cast iron surface closer rated heavy duty Grade 1, and the Falcon SC71A heavy duty Grade 1 surface mount closer. The BEST HD8000 Series is a heavy duty Grade 1 surface closer as well, and the BEST EHD9000 Series is an extra heavy duty Grade 1 surface closer with adjustable spring sizes 1 through 6, which extends one size beyond the 4021's range. All four are top of the door surface mounted units, so the opening prep concept is the same, but each brand uses its own template and hole pattern, so confirm the drill pattern before you swap one onto an existing door.
8) I need spring size 6 for a wide exterior door. What closer covers that when the LCN 4021 tops out lower?
The LCN 4021 adjusts across spring sizes 1 through 5. When the opening calls for a size 6 setting, the peers that publish a 1 through 6 adjustment range include the BEST EHD9000 Series extra heavy duty Grade 1 closer, the Dorma 8916-JT heavy duty Grade 1 closer with jamb track arm and frame face pull side mounting, the Norton Rixson 8501A Grade 1 tri-mount closer, the Accentra 2701 architectural closer, the Arrow DCN325 Grade 1 surface closer, and the Imperial USA TC4300 Grade 1 heavy duty closer. Note that the 8916-JT is a track arm closer rather than a swing arm unit, so it changes the arm geometry at the head, and the Arrow DCN325 is a light duty unit and the Norton 8501A a medium duty unit, so match the duty level to the traffic on the door as well as the spring size.
9) The door is a low traffic interior office door. Is there a lighter closer than the LCN 4021 that still holds Grade 1?
Yes. The 4021 is specified as a heavy duty commercial closer with a cast iron body, which is more closer than a light traffic interior door needs. Lighter Grade 1 surface closers include the BEST SL6000 Series, a light duty Grade 1 unit, the Norton Rixson 160 Series light commercial closer at light duty Grade 1, and the Arrow DC314 in the DC300 Series, also light duty Grade 1. Stepping up slightly, the Falcon SC61A is light to medium duty Grade 1 in a cast aluminum body and the Falcon SC81A is medium duty Grade 1 cast aluminum. If your spec sheet accepts Grade 3, the Falcon SC91A is a light duty Grade 3 cast aluminum closer. Grade 1 is the highest ANSI/BHMA cycle class, so a light duty Grade 1 unit still certifies to that grade at its own rated door size.
10) I do not know the handing of the door yet. What closer can I stock instead of ordering the LCN 4021 left hand and right hand separately?
The LCN 4021 is handed, sold as left hand and right hand, so you have to know which way the door swings before you order. If you are stocking for a building where handing is not settled, a non-handed tri-pack closer ships one carton that covers regular, parallel and top jamb mounting. Tri-pack peers include the Dexter DCH1000 Grade 1 surface closer with full cover and tri mount for regular, parallel or top jamb, the Dexter DCM1000 and DCL2000 Grade 1 tri mount closers, the Arrow DCN314 Grade 1 tri-pack with regular and parallel arm, the Accentra 1101BF tri-pack closer, the Design Hardware 116 Series heavy duty tri-packed non-hold open closer, and the Norton Rixson 1601P Grade 1 tri-mount closer. That flexibility is a stocking decision, not a performance one, and the tri-pack units differ from the 4021 in body material and duty rating.
11) Which closers give me delayed action like the LCN 4021 for an accessible entrance?
The 4021 lists a delay function and is ADA compliant, which is what you want on an opening where a person needs extra time to clear the door. Among the peers, the Orca BHDC1958DA and the Orca BHDC2011DA are delayed action closers with a regular arm and parallel bracket, both for 1-3/4 inch doors. For ADA barrier free operation without a stated delay, the Cal-Royal 500S is a Grade 1 barrier free closer with adjustable back-check, the Cal-Royal N900PBF is a barrier free Grade 1 hydraulic surface closer, and the Calibre CA9901 and CA8001P are Grade 1 ADA surface mount closers. Delayed action and barrier free spring power are separate adjustments, so confirm which one your accessibility reviewer is asking for.
12) The architect specified a slide track arm and the LCN 4021 uses a swing arm. What should I quote?
The 4021 ships with swing arm options: regular arm, long arm, hold open arm and fusible link arm, all working off a surface mounted cast iron body. If the drawing calls for a track, the Corbin Russwin DC5230 is a Grade 1 surface closer with a slide track arm as standard in a pull side mounting for 1-3/4 inch doors, and the Dorma 8916-JT is a heavy duty Grade 1 closer with a jamb track and frame face mounting on the pull side in adjustable sizes 1 through 6. A track arm keeps the hardware tight to the door face and changes the projection at the head, so it is not interchangeable with a swing arm unit once the frame is templated.
13) Will an LCN 4021 hold up on an exterior door in freezing weather?
It uses all-weather hydraulic fluid, so closing speed stays consistent as temperature swings instead of slowing to a crawl in the cold and slamming in summer heat. The body is cast iron with a full-complement bearing and a 1-1/2" diameter piston, and the powder coat finish is what you want on an exposed opening rather than a plated one.
14) Does the LCN 4021 have delayed action for a wheelchair or cart opening?
Yes, delayed action is available on the 4021. That holds the door near full open for a few seconds before the close cycle starts, which is what you want on a healthcare corridor, a restroom, or any door someone is pushing a cart or a chair through. It is a valve adjustment on the closer, not a separate model.
15) Should I get the plastic cover or the metal cover on an LCN 4021?
Cover is an order option on the 4021: plastic is the default, metal is the upgrade. Take the metal cover on anything abusive or exposed, school corridors, dorms, back-of-house, transit, where a plastic cover gets kicked or pried off. Plastic is fine on an office or tenant door. Cover choice does not change the closer body or its performance.
16) Is the LCN 4021 Buy American compliant for a government job?
Yes, the 4021 is BAA qualified, so it can go on federal and municipal work carrying a Buy American requirement. It is also Grade 1 under ANSI/BHMA A156.4 with UL and cUL listings, which covers the usual specification language on institutional projects.
17) What is the difference between the LCN 4021 and a lighter duty commercial closer?
Duty level is the split. The 4021 is heavy duty with a cast iron body, built for high-cycle traffic like main entrances, stairwells, and school corridors. If the opening is a low-traffic office or tenant door, a light or medium duty Grade 1 closer covers it, the Falcon SC91A is light duty Grade 3, the Falcon SC61A is light to medium duty Grade 1, and the BEST HD7000 Series is medium duty Grade 1. Put heavy duty where the door gets used hundreds of times a day and abused; anywhere else you are paying for cycles you will not use.
18) Can I standardize one closer across a whole commercial building with the LCN 4021?
Largely, yes. One 4021 model covers interior doors to 5'0" and exterior to 4'0" with field adjustable spring sizes 1 through 5, so a maintenance department can stock a small number of units instead of a size per door. What still varies door to door is handing (left or right) and arm type, so a standardizing buyer typically stocks both hands in one finish with regular arms, and orders long or hold open arms only for the openings that need them.
19) When would I use a slide track closer instead of the LCN 4021 regular arm?
A projecting regular arm sticks out from the door and can be grabbed, kicked, or hit by traffic. Where you want a low-profile look or a hidden-track appearance, a slide track closer is the alternative, the Corbin Russwin DC5230 Series is a Grade 1 surface closer with a slide track arm standard and pull side mounting, rated for 1-3/4" doors. Stay with the 4021 and a conventional arm where you want maximum closing power and simple field service; go slide track where appearance or arm exposure drives the decision.
20) I need the door to stay open on its own. Which closers do that if I am not using the LCN 4021 hold open arm?
The 4021 covers hold open through its H hold open arm option, and it also offers a fusible link arm, a long arm and a regular arm. If you are comparing across brands for the same function, hold open peers include the Accentra 51 Series with a tri-packed hold open arm in sizes 1 through 6, the Orca BHDC1958HO with a tri-packed hold open arm and parallel bracket, and the Stanley A45-501HL with a long hold open arm standard in a top jamb mount. Be careful with the fusible link version: a fusible link arm holds the door open and releases on heat, which is a different behavior from a mechanical hold open that stays open until someone pushes the door, and only the mechanical type is appropriate where the door must not close on a temperature rise.
21) What looks like an alternative to the LCN 4021 but will not work as a door closer?
A few items sit alongside surface closers and are not substitutes for one. The Arrow DCN500DP is a parallel drop plate for the DCN500, a mounting accessory rather than a closer body. The Stanley 327 heavy wardrobe pivot for 1-3/8 inch or 1-3/4 inch doors up to 150 pounds and the Stanley 341 wardrobe pivot for flush recessed or overlay doors on 1-1/8 inch to 1-3/8 inch doors are hanging hardware, they carry the door but do not control its closing. The Stanley 57-0100 steel machine screws for architectural hinges are fasteners sold by the box of 100. If you need controlled closing on a commercial door, you need a closer body like the 4021 or one of the Grade 1 peers, not one of these.
22) Our facility standard requires Grade 1. Which closers besides the LCN 4021 hold that grade so I can standardize across a campus?
The 4021 is certified to ANSI/BHMA A156.4 Grade 1 with UL and cUL listings and is BAA qualified. If you are writing a multi-brand standard, Grade 1 surface closers in the same class include the Sargent 1431 Powerglide heavy duty, the Sargent 281 heavy duty cast iron, the Sargent 1131 and 1331 medium duty, the BEST HD8000 heavy duty and HD7000 medium duty, the Falcon SC71A heavy duty and SC81A medium duty, the Corbin Russwin DC3200, DC6200 and DC8200 regular and double lever arm closers for 1-3/4 inch doors, the Dormakaba 7303 and 7414 medium duty units, the Norton Rixson 1600BC heavy duty storefront closer, and the Calibre CA4001 and CA5501. The Cal-Royal 400 Series is Grade 2, so it falls outside a Grade 1 standard.
23) The opening is a narrow aluminum storefront door. Is the LCN 4021 the right closer or is there something made for that frame?
The 4021 mounts to a 2-1/2 inch by 6 inch hole pattern on the pull side with a surface top jamb push side option, which suits a hollow metal or wood door with a normal head rail. On an aluminum storefront with a shallow top rail, the Norton Rixson 1600 Series aluminum storefront closer is built for that frame in a heavy duty Grade 1 unit with tri-style mounting, and the Corbin Russwin DC5230 with its slide track arm on the pull side is another way to keep the hardware inside a narrow head. Check the actual top rail height against the closer footprint before committing, since the storefront specific units are the ones dimensioned for it.
24) The LCN 4021 comes with a plastic cover as standard. Which comparable closers include a cover and which do not?
The 4021 is offered with a plastic cover by default and a metal cover option. Among the peers, the Dexter DCH1000 Grade 1 tri mount closer is specified with a full cover, and the Design Hardware 316 Series is a medium to heavy duty closer supplied with a cover. On the other side, the Arrow DCN314 and Arrow DCN325 Grade 1 surface closers are both specified less cover, so a cover has to be handled separately if the opening is one where an exposed body is not acceptable. Cover material matters in high abuse areas such as schools and multi-family corridors, which is where the metal cover choice usually comes up.
25) There is no room for a projecting arm on the push side. What closer handles that where the LCN 4021 regular arm will not?
The 4021 offers a regular arm, a long arm, a hold open arm and a fusible link arm, all of which project from the door or frame in the usual way. Where the head condition or a low ceiling will not take that projection, flat arm closers sit closer to the surface: the Dormakaba 8616 AF86P is a Grade 1 heavy duty closer with a flat arm non-hold open configuration supplied as a tri-pack, and the Dorma 8916-JT is a heavy duty Grade 1 unit with a flat non-hold open arm on a jamb track. Both are pull side or frame face oriented, so verify which side of the door you have clearance on before selecting.
26) What finishes does the LCN 4021 powder coat closer come in?
Six powder coat finishes on the 4021: 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze, and 696 brass. For a property manager matching a fleet of doors, 689 aluminum and 695 dark bronze are the two that pair with most existing commercial door hardware, and holding one finish across a building keeps replacements straightforward.
27) I want to match the finish on existing hardware. Which closers compare to the LCN 4021 finish range?
The 4021 is a powder coat finish closer offered in 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze and 696 brass. Two peers are published against a specific finish code: the Dorma 8916-JT jamb track closer and the Dormakaba 8616 flat arm Grade 1 closer are both listed in 689, which is the same aluminum code as the 4021's 689 option. The Dormakaba 7303 and 7414 are painted finish closers. Finish codes are the BHMA numbering shared across manufacturers, so a 689 closer from either brand lands in the same aluminum family as the rest of the 689 hardware on the opening.
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Does the LCN 4021-REGARM-689-RH come with a warranty?
Absolutely. The LCN 4021-REGARM-689-RH is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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