LCN 4050A Heavy-Duty Cast Alum...
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$607.00
$346.57
LCN LCN 4050A Surface-Mounted Cast Aluminum Door Closer LCN-4050A

LCN 4050A Heavy-Duty Cast Aluminum Surface-Mounted Door Closer with 25-Year Warranty

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Model: 4050A-RWPA-690
$607.00
$346.57
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$607.00
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LCN 4050A Heavy-Duty Cast Aluminum Surface-Mounted Door Closer with 25-Year Warranty

Professional-Grade Commercial Door Closer Solution

The LCN 4050A Series cast aluminum door closer delivers professional-grade performance engineered for high-frequency, high-abuse commercial applications. Featuring a cast aluminum cylinder with full-complement bearing and 1-1/2" diameter piston, this closer provides reliable operation with adjustable spring sizes 1-6 for versatile door weight compatibility. Built to excel in harsh environments while meeting ANSI/BHMA A156.4 Grade 1 certification and ADA requirements with industry-leading 25-year warranty coverage.

Professional Features & Benefits

  • Heavy-Duty Cast Aluminum Construction: Cast aluminum cylinder with full-complement bearing and double heat-treated steel pinion journal provides exceptional durability for demanding commercial applications.
  • Adjustable Spring Force: Spring sizes 1-6 accommodate various door weights and applications for optimal closing performance across different installation requirements.
  • All-Weather Performance: Liquid X all-weather fluid ensures consistent operation across temperature extremes and environmental conditions for reliable year-round performance.
  • Grade 1 Certification: Tested and certified under ANSI/BHMA A156.4 Grade 1 standards with UL and cUL listings for code compliance and professional applications.
  • Universal Installation: Non-handed design simplifies inventory and installation with multiple mounting options including hinge pull side, push side top jamb, and push side parallel arm configurations.
  • ADA Compliance: Meets ADA requirements for accessible door operation in commercial facilities ensuring regulatory compliance.
  • Manufacturer Warranty: Industry-leading 25-year warranty coverage provides long-term confidence and protection for commercial installations.
  • Versatile Finish Options: Standard powder coat finish with 6 standard colors and unlimited custom colors, plus optional full metal cover and SRI primer for corrosive conditions.

Technical Specifications

  • ADA Compliant: Yes
  • BAA Qualified: Yes
  • Closer Size: 1
  • Closer Size: 3
  • Closer Size: 5
  • Closer Size: 6
  • Closer Size: 2
  • Closer Size: 4
  • 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
  • Mounting Detail: Surface - Hinge Mount(Pull Side), Top Jamb Mount(Push Side), Parallel Arm Mount(Push Side)
  • Mounting Hole Pattern: 2-3/8" x 6-3/4"
  • Mounting Location: Pull Side
  • Mounting Location: Push Side
  • Mounting Method: Surface Mount
  • Product Category: Door Controls
  • Product Group: Door Controls
  • Product Model: 4050A
  • Product Subgroup: Door Closers - Surface Mounted
  • Product Substrate: Aluminum
  • Product Type: Surface Mounted Door Closers
  • Series: 4050A Series
  • Subcategory: Door Closers - Surface Mounted
  • Warranty: 25 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 aluminum construction and full-complement bearing design rated for high-frequency, high-abuse applications. Backed by an industry-leading 25-year warranty and featuring patent-pending design elements with all-weather Liquid X fluid. Engineered for demanding commercial applications where dependable performance and long-term durability are essential.

Product Specs

Series:
4050A Series
Duty Level:
Heavy Duty
ADA Compliant:
Yes
BAA Qualified:
Yes
Mounting Hole Pattern:
2-3/8" x 6-3/4"
Warranty:
25 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:
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
Closer Size:
2
Closer Size:
3
Closer Size:
4
Closer Size:
5
Closer Size:
6
Mounting Location:
Push Side
Product Model:
4050A
Cover Type:
Plastic/Metal
Delay Function:
Yes
Mounting Method:
Surface Mount
Product Category:
Door Controls
Product Substrate:
Aluminum
Department:
Door Hardware

LCN 4050A-RWPA-690 – Frequently Asked Questions

1) Will the LCN 4050A door closer work on a door that swings out into the corridor?
Yes, and there are two ways to do it. The 4050A mounts three ways: hinge mount on the pull side, top jamb mount on the push side, and parallel arm mount on the push side. On an out-swinging door the closer body goes on the push side, either on the frame face (top jamb) or under the frame soffit with the arm folded back flat against the door (parallel arm). Parallel arm is the usual pick in a corridor or a stair, because the arm stays tight to the door instead of projecting into the opening where it gets grabbed or hit.
2) There is no wall stop behind the door. Which arm do I order with the LCN 4050A?
Order one of the Cush-n-Stop arms. CUSH builds the stop into the arm itself, SCUSH adds a spring stop that cushions the door before it reaches the stop point, HCUSH is the hold open version, and SHCUSH is the spring hold open version. These take the overswing in the arm, which is what you need when there is no floor stop or wall stop to catch the door. All four are push side, parallel arm mounted, so confirm you have soffit clearance above the door.
3) Can the LCN 4050A hold a door open, and what do I have to specify to get that?
Hold open is an arm choice made when you order, not a field adjustment. The hold open arms are HCUSH (hold open Cush-n-Stop), SHCUSH (spring hold open Cush-n-Stop), HLONG (hold open long arm), HWPA (hold open with parallel arm mounting bracket), and HEDA62G in left or right hand. Choose CUSH, SCUSH, EDA, EDAW62G, LONG or RWPA instead and the door closes every cycle. One caution for institutional work: a mechanical hold open arm is not used on a fire rated opening, where the door has to close and latch on its own.
4) The door schedule calls for a Grade 1 heavy duty surface closer. Does the LCN 4050A meet that spec?
It does. The 4050A is tested and certified under ANSI/BHMA A156.4 Grade 1, carries UL and cUL listings, and is a heavy duty closer built for high frequency, high abuse openings. Construction behind that rating is a cast aluminum cylinder with a full complement bearing, a 1-1/2 inch diameter piston, and a double heat treated steel pinion journal. It also meets ADA requirements for accessible door operation.
5) What mounting hole pattern does the LCN 4050A use, and can I reuse the holes from the closer already on the door?
The 4050A uses a 2-3/8 by 6-3/4 inch mounting hole pattern. Measure the prep on the door you are changing out: if the existing through bolts or tapped holes fall on that pattern the new closer picks them straight up and nobody is drilling. If they do not match, budget for a new prep, and on a hollow metal door expect to cover the old holes with a plate rather than leave them showing. Worth checking before the truck rolls, because a field-drilled prep on a fire rated hollow metal door is not a small job.
6) Do I have to order the LCN 4050A in a specific spring size for the door width?
No. One 4050A covers spring sizes 1 through 6 and the power is set in the field, so you dial it to the door instead of ordering by size. For a property manager or an MRO storeroom that means a single part number on the shelf serves the interior offices, the corridor doors and the heavy exterior entrances. Sizes run lightest at 1 to strongest at 6; the low end of the range is where you set an opening that has to stay easy to pull, and the closer is listed ADA compliant.
7) The arm cannot project out over the opening. What should I use instead of the LCN 4050A?
Every arm offered on the LCN 4050A is a projecting type, including the regular and long arms, the extra duty arm, and the Cush-n-Stop arms, all of which swing out from the closer body to the door or frame. Where that projection is unacceptable, a track-arm closer keeps the linkage tight to the door face: the Corbin Russwin DC5230 is a Grade 1 surface closer with a slide track arm as standard, pull side mounting, and the Dormakaba 8916-JT is a heavy-duty Grade 1 jamb track closer with frame face mounting, pull side, adjustable size 1-6. Both hold Grade 1 like the 4050A.
8) What is the closest cross-brand equivalent to the LCN 4050A door closer?
The LCN 4050A is a heavy-duty surface-mounted closer with adjustable closer sizes 1 through 6, certified to ANSI/BHMA A156.4 Grade 1. Three peers sit on the same duty and grade footing: the BEST EHD9000, an extra heavy-duty surface mounted closer with adjustable spring sizes 1-6 rated Grade 1; the Falcon SC71A, a heavy-duty surface-mount closer rated Grade 1; and the Sargent 1431 Powerglide, a heavy-duty Grade 1 surface closer with adjustable spring power. The Imperial USA TC4300 is also a heavy-duty size 1-6 ADA closer. Any of the four covers the same heavy-traffic commercial opening the 4050A is specified for.
9) I need spring size 5 or 6 for a wide exterior entrance. Which closers cover that range and which stop at size 4?
The LCN 4050A adjusts across closer sizes 1 through 6, so it reaches the higher spring powers a wide or heavy exterior door needs. Peers that also reach size 6 include the Arrow DCN325, a Grade 1 surface closer with adjustable spring size 1-6; the Norton Rixson 8501A, a Grade 1 tri-mount closer with adjustable size 1-6 spring; the BEST EHD9000 with adjustable spring sizes 1-6; and the Accentra 2701 with adjustable spring sizes 1-6. Closers that top out at size 4 include the Arrow DCN314, the Accentra 1101BF, and the Dormakaba 7414. Confirm the range before ordering for an exterior opening.
10) Will the LCN 4050A work on an aluminum storefront door, or is there a closer made for that?
The LCN 4050A is a heavy-duty surface-mounted closer with a 2-3/8 inch by 6-3/4 inch mounting hole pattern, which has to land on the available door or frame face. On narrow-stile aluminum storefront, the Norton Rixson 1600 Series aluminum storefront door closer is built for that opening and offers tri-style mounting at heavy duty and Grade 1, the same duty level and grade the 4050A carries. Confirm the stile width and header face you have to work with before committing either way.
11) Our spec calls for a barrier free closer. Which products meet that besides the LCN 4050A?
The LCN 4050A is ADA compliant and Grade 1. Peers written up for the same accessible openings are the Cal-Royal 500S, a Grade 1 barrier free closer with adjustable back-check; the Cal-Royal N900PBF, a Grade 1 hydraulic barrier free surface closer; the Calibre CA4001, a Grade 1 adjustable spring tension ADA hydraulic closer; the Calibre CA8001P Grade 1 parallel arm size 1 ADA closer; and the Imperial USA TC4300, a Grade 1 heavy duty size 1-6 ADA closer. Of that group the 4050A and the TC4300 are the heavy-duty ones, which is what a high-traffic accessible entrance usually calls for.
12) I searched door closers and got parts that are not closers. Which of these will not replace an LCN 4050A?
The LCN 4050A is a complete surface-mounted door closer, non-handed, with the closer body, arm, and cover ordered together. Several items sit alongside it that will not replace it. The Arrow DCN500DP is a parallel drop plate for the DCN500, a mounting accessory rather than a closer. The Stanley Security 327 is a heavy wardrobe pivot for 1-3/8 inch or 1-3/4 inch doors up to 150 pounds and the Stanley 341 is a wardrobe pivot for 1-1/8 inch to 1-3/8 inch doors; pivots carry and swing a door but do not control its closing. The Stanley 57-0100 is a box of 100 steel machine screws for architectural hinges.
13) Can the LCN 4050A be set to keep the door open longer for carts and wheelchairs?
Delayed action is built in. The 4050A carries a delay function, so the door creeps through the first part of its swing before the main closing speed picks up, giving someone with a cart, a gurney or a wheelchair time to clear the opening. That is set on the closer itself, so you are ordering the same closer whether or not you use it. It is the setting most often wanted on patient room and corridor doors, kitchen and stockroom doors, and any high traffic accessible entrance.
14) Will the LCN 4050A hold up on an exterior door through winter and summer?
It runs LCN's Liquid X all-weather fluid, so closing speed stays consistent between a below-freezing morning and a hot afternoon instead of drifting the way a standard fluid does. The cylinder is cast aluminum with a powder coat finish. For coastal air, pool rooms, or anywhere else corrosive, LCN offers the 4050A with the full metal cover and SRI primer.
15) Is the LCN 4050A closer BAA qualified for a federal or government project?
The 4050A is listed BAA qualified, which is what a government or municipal spec is looking for on Buy American Act work. The rest of the compliance picture on the same closer: ANSI/BHMA A156.4 Grade 1 certified, UL and cUL listed, and ADA compliant. That combination is why it turns up on federal buildings, schools and healthcare submittals.
16) Which arm should I use on a high abuse door where people shove it open hard?
Go extra duty. On the LCN 4050A that is EDA, the extra duty arm, or EDAW62G, which pairs the extra duty arm with the 62G thick hub shoe; HEDA62G is the hold open version and is ordered LH or RH to match the door. If the abuse case is the door slamming into a wall, the Cush-n-Stop arms (CUSH, or SCUSH with its spring stop) absorb the overswing in the arm instead. Under any of them sits the same heavy duty cast aluminum body with a full complement bearing and a double heat treated steel pinion journal.
17) Do I need to buy a separate bracket to mount the LCN 4050A as a parallel arm?
The bracket comes as part of the arm you pick. RWPA is a regular arm supplied with the parallel arm bracket, and HWPA is the hold open version with the parallel arm mounting bracket. The Cush-n-Stop arms (CUSH, SCUSH, HCUSH, SHCUSH) are parallel arm applications as well. What you do need to verify on site is soffit clearance above the door, since parallel arm hardware mounts to the underside of the frame head on the push side.
18) What are the closest alternatives to the LCN 4050A heavy duty surface closer?
Staying with heavy duty Grade 1 surface closers, the near equivalents are the BEST EHD9000 Series with adjustable spring sizes 1-6, the Sargent 1431 Powerglide with adjustable spring power, and the Falcon SC71A. For an aluminum storefront entrance specifically, the Norton Rixson 1600 Series aluminum storefront closer is heavy duty Grade 1 with tri-style mounting. Where the 4050A distinguishes itself is the arm range, twelve options covering extra duty, long, parallel bracket and four Cush-n-Stop variants, plus BAA qualification for federal work.
19) Is the LCN 4050A overkill for a low traffic interior office door?
For a private office or a back-of-house door that cycles a few times a day, yes. The 4050A is a heavy duty closer aimed at high frequency, high abuse openings. Lighter Grade 1 options cover that work: the BEST SL6000 Series (light duty, Grade 1, adjustable spring sizes), the Arrow DCN325 (light duty, adjustable spring size 1-6, supplied less cover), the Sargent 1131 (medium duty, Grade 1) or the BEST HD7000 Series (medium duty, Grade 1, with backcheck). Save the 4050A for the entrances, stair doors and main corridors that actually take the cycles.
20) Which door closers besides the LCN 4050A have a cast aluminum body?
The LCN 4050A uses a cast aluminum cylinder with an aluminum substrate. Falcon offers three cast aluminum surface-mount closers at different duty levels: the SC71A is heavy duty and Grade 1, the SC81A is a medium duty cast aluminum closer rated Grade 1, and the SC91A is a light duty cast aluminum closer rated Grade 3. The Sargent 1331 also uses a universal aluminum body and is Grade 1 medium duty. Match the duty level to the traffic on the opening: the 4050A and SC71A are the heavy-duty members of that group.
21) Which closers offer a hold-open arm as an alternative to the LCN 4050A?
The LCN 4050A is available with several hold-open arms, including the hold open Cush-n-Stop, the hold open long arm, hold open with parallel arm mounting bracket, and the handed extra duty hold open arms with the 62G thick hub shoe. Cross-brand hold-open closers include the Accentra 51 Series with a tri-packed hold open arm, the Orca Hardware BHDC1958 hold open closer with parallel bracket, and the Stanley Security A45-501HL with a long hold open arm standard, top jamb mounted. By contrast the Design Hardware 116 and 416 heavy duty closers ship with a tri-packed non-hold open arm.
22) I need delayed action for an accessible entrance. Does the LCN 4050A do that, and what else does?
The LCN 4050A includes a delay function and meets ADA requirements for accessible door operation. If a different body is needed on the opening, Orca Hardware lists two delayed action closers, the BHDC1958 and the BHDC2011, both supplied as delayed action with a regular arm and parallel bracket and both listed for 1-3/4 inch doors. The 4050A differs from those in duty level, being a heavy-duty closer with closer sizes 1 through 6 for high-frequency openings.
23) What is the difference between the LCN 4050A and a cast iron door closer like the Sargent 281?
The difference is the body material. The LCN 4050A uses a cast aluminum cylinder with an aluminum substrate, a full-complement bearing, and a double heat-treated steel pinion journal, and is rated heavy duty. The Sargent 281 Powerglide is a cast iron surface door closer with heavy-duty construction, rated heavy duty and Grade 1. Both are heavy-duty surface closers for the same class of commercial opening; the choice comes down to which body material your specification or facility standard calls for.
24) Which other closers mount three ways like the LCN 4050A, and which are single-mount?
The LCN 4050A is non-handed and mounts three ways: hinge or pull side, top jamb on the push side, and parallel arm on the push side. Peers with the same tri-mount flexibility include the Dexter DCH4000, a Grade 1 surface closer for regular, parallel or top jamb mounting; the Norton Rixson 8501A Grade 1 tri-mount closer; and the Calibre CA9901 Grade 1 tri-pack arm closer in size 2-5. The Corbin Russwin DC6200 and DC8200, both Grade 1, are listed with a double lever regular arm and pull side mounting. Knowing which side of the door you are working from decides that choice.
25) Do any of the alternatives to the LCN 4050A come without a cover, and does that matter?
The LCN 4050A is supplied with a cover, plastic standard with a full metal cover available as an option. Among the alternatives, the Arrow DCN314 and DCN325 are both described as less cover, so the closer body is exposed unless a cover is ordered separately, while the Dexter DCH1000 is a Grade 1 tri mount closer supplied with a full cover and the Design Hardware 316 is furnished with a cover. On a public corridor or a tenant-facing entrance, the cover is usually part of the specification, so check it before substituting.
26) If the job does not require a Grade 1 closer, what is a simpler alternative to the LCN 4050A?
The LCN 4050A is certified to ANSI/BHMA A156.4 Grade 1 and rated heavy duty. Where the specification does not call for Grade 1, the Cal-Royal 400 Series is a Grade 2 commercial hydraulic door closer. Staying inside Grade 1 but at a lighter duty level, the BEST HD7000 is a medium duty Grade 1 closer with adjustable spring power and backcheck control, and the Dormakaba 7303 is a medium duty Grade 1 standard duty surface-mounted closer in a painted finish. Match the duty level to the traffic count on the door, and the grade to what the drawing calls out.
27) Should I get the LCN 4050A with the plastic cover or the metal cover?
Both are offered on the 4050A: the standard plastic cover, or the optional full metal cover. Plastic is fine on ordinary interior openings behind a reception desk or in an office suite. Specify the metal cover where the cover takes abuse or gets picked at, which in practice means school and dorm corridors, locker rooms, housing common areas, and anywhere a closer gets vandalized. The metal cover is also the one paired with SRI primer for corrosive exposure.
28) What finishes does the LCN 4050A come in, and which one matches aluminum storefront hardware?
Six standard powder coat finishes: 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze and 696 brass, with custom colors available beyond those six. For a clear anodized aluminum entrance, 689 aluminum is the standard match; on dark bronze anodized storefront, 695 dark bronze is the one that blends. 693 gloss black is what people reach for when the rest of the door hardware and the frame are black.
29) Can I substitute a Cal-Royal 400 Series closer for the LCN 4050A on a Grade 1 spec?
Not if the submittal says Grade 1. The Cal-Royal 400 Series is a Grade 2 commercial hydraulic closer, and the 4050A is certified to ANSI/BHMA A156.4 Grade 1 and rated heavy duty. If you want a Cal-Royal that holds the grade, the 500S is a Grade 1 barrier free closer with adjustable back-check and the 700S is a Grade 1 dual valve sized closer with an adjustable tube arm. Grade 2 is a legitimate closer, just a different specification line, so swapping it in on a Grade 1 door schedule is what gets a submittal rejected.
30) We stock one closer for both left and right hand doors. Which alternatives to the LCN 4050A are non-handed?
The LCN 4050A has a non-handed body, so a single closer serves both hands of door and one part number covers a mixed fleet; the arm chosen decides the mounting, with pull side hinge, push side top jamb, and push side parallel arm all available. The Sargent 1331 is a Grade 1 medium duty surface closer built on a universal aluminum body, and the tri-mount closers such as the Dexter DCM1000 and Dexter DCL2000, both Grade 1, are set up the same way for regular, parallel, or top jamb mounting. Note that on the 4050A the extra duty hold open arm with the 62G thick hub shoe is ordered left hand or right hand.
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Does the LCN 4050A-RWPA-690 come with a warranty?
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