Stanley Security QDC120 Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$912.00
$567.49
Stanley Security QDC120 Series - Grade 1 Extra Duty Door Closer, Extra Duty Arm with Hold Open and Spring Stop, Full-Size Metal Cover

Stanley Security QDC120 Series - Grade 1 Extra Duty Door Closer, Extra Duty Arm with Hold Open and Spring Stop, Full-Size Metal Cover

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Model: QDC120 M 689 LH
$912.00
$567.49
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$912.00
$567.49
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QDC100 Series Door Closers

We designed and engineered the dormakaba Commercial Hardware QDC100 Series with ultimate durability and versatility in mind. With cast iron construction, retrofit-compatible features and a wide array of options, these ANSI/BHMA Grade 1 closers provide the strength and versatility institutional and industrial markets demand. Built with robust materials and designed for easy customization and retrofit, the QDC100 delivers lasting security for even the most rigorous applications.

  • Cast iron construction
  • Retrofit-compatible features
  • 10 unique arm options that feature variant arm and stop types
  • Two arm types: a tri-pack arm and extra duty arm
  • Available in 3 finishes 689, 690 and 696

Product details

Security:

Get premium security performance options like delayed action and a back check valve standard with the ANSI/BHMA Grade 1 QDC100 Series.

Construction:

With cast iron body construction, cold-forged pinion shaft and forged steel arms, the QDC100 stands up to heavy use over the long term. Innovative construction features like staked valves prevent oil leaks from screws being accidentally backed out too far. And, it’s engineered with all-weather fluid.

 

Applications

The QDC100 is a cost-effective option ideal for heavy duty applications such as institutional and industrial environments.

A variety of arm types and stop options and non-handed and universal mount design to make it easy to stock and use in a wide variety of applications.

There's no need to re-prep your door. The QDC100 has the same footprint, bolt pattern and rounded cover as the LCN4040 so it's a simple off-and-on exchange.

Product downloads

Brochures & data sheets

Manufacturer Resources

Product Specs

Subcategory:
Surface Mounted Closers
Product Group:
Door Controls
Series:
QDC120 Series
Grade:
Grade 1
Duty Level:
Heavy Duty
Closer Size:
1 to 6
Product Subgroup:
Door Closers - Surface Mounted
Product Type:
Surface Mounted Door Closers
Commercial/Residential:
Commercial
Mounting Detail:
Wood, Aluminum, or Hollow Metal Doors and Frames
ANSI/BHMA:
ANSI/BHMA A156.4; ANSI A117.1; UL/cUL listed; UL10c; UL10b
Fasteners:
Wood and Machine Screws Standard, Sex Nuts and Self-Reaming, Self-Tapping Screws Standard
UL Listing Type:
ANSI/BHMA A156.4; ANSI A117.1; UL/cUL listed; UL10c; UL10b
Door Width:
30" to 48" (Interior); 32" to 48" (Exterior)
Mounting Location:
Pull Side/Push Side
Door Hand Direction:
Non-Handed (QDC116 arms are Handed and metal covers)
Product Category:
Door Controls
Department:
Door Hardware

Stanley Security QDC120 M 689 LH – Frequently Asked Questions

1) Can I swap an LCN 4040 door closer for the Stanley QDC120 without re-drilling the door?
Yes. The QDC100 family, which the QDC120 belongs to, uses the same footprint, bolt pattern and rounded cover as the LCN 4040, so it goes on the existing prep as a straight off-and-on exchange. That is the main reason it gets specified on retrofit work where re-prepping a hollow metal door is not an option.
2) What door widths will the Stanley QDC120 closer handle on exterior openings?
It covers 30 to 48 inch doors on interior openings and 32 to 48 inch doors on exterior openings, with spring power adjustable through sizes 1 to 6. That size range is what lets one closer cover an entire building rather than stocking several models.
3) Do I have to order the Stanley QDC120 closer left hand or right hand?
The closer body itself is non-handed and universal mount, but the QDC120 is ordered with a handing choice because its extra duty arm and metal cover are handed. Pick left or right to match the door. The QDC116 arms are handed the same way. If you want a non-handed stocking item, a tri-pack arm version is the one to look at.
4) Does the QDC120 hold the door open, and what stops it from over-swinging into a wall?
This configuration ships with the extra duty arm with hold open and spring stop. The hold open keeps the door parked where you set it, and the spring stop built into the arm absorbs the door at the end of the swing so it does not slam into adjacent wall or a stop. A back check valve is standard across the series as well, which cushions the door before it gets to the stop.
5) What does the Barrier Free option on the Stanley QDC120 actually give me?
Barrier free is the ADA opening-force build, and the closer is listed to ANSI A117.1, the accessibility standard. Order the Barrier Free option for openings that have to meet reduced opening force, such as restroom and accessible-route doors. The None option is the standard build. Both are available in all three finishes and either handing.
6) Can I use the Stanley QDC120 on a labeled fire door?
Yes. The QDC120 is UL and cUL listed and carries UL10c and UL10b, the positive-pressure and neutral-pressure fire door test standards, and it is certified to ANSI/BHMA A156.4 Grade 1. Note that a hold open arm is not permitted on a fire door unless the hold open is released by the fire alarm, so for labeled openings specify a non-hold-open arm version of the series.
7) Will the QDC120 mount on the push side of the door, or only the pull side?
Both. Mounting location is pull side or push side, so you can run it regular arm on the pull side or parallel arm on the push side depending on how the opening swings and whether you need the closer out of the corridor. It mounts to wood, aluminum, or hollow metal doors and frames.
8) What is the closest Grade 1 heavy duty equivalent to the Stanley Security QDC120 closer from another brand?
The QDC120 is a Grade 1 heavy duty surface mounted closer with an adjustable size 1 to 6 spring. The closest peers on those same points are the Sargent 281 Powerglide, a Grade 1 heavy duty cast iron surface closer, and the BEST EHD9000 Series, a Grade 1 extra heavy-duty surface closer with adjustable spring sizes 1 to 6. The Falcon SC71A Series and the LCN 1460T are also Grade 1 heavy duty surface closers. Arm type and stop function differ between them, so match the arm and hold open requirement on the opening before you swap.
9) I need a closer with a hold open arm like the QDC120 - what else offers hold open?
The QDC120 pairs an extra duty arm with hold open and a spring stop. If you need hold open from another brand, the Accentra 51 Series is furnished with a tri-packed hold open arm and an adjustable size 1 to 6 spring, and the Orca Hardware BHDC1958HO/PA is a hold open closer with a tri-packed hold open arm and a parallel bracket for 1-3/4 inch doors. Note that a tri-pack hold open arm holds the door open but does not provide the integral spring stop the QDC120 extra duty arm includes, so if the arm is also serving as your door stop you will need a separate overhead or floor stop with those.
10) Is a Corbin Russwin DC8200 a drop-in replacement for a Stanley QDC120?
They are not interchangeable arm-for-arm. The Corbin Russwin DC8200 Series is a Grade 1 surface closer furnished with a double lever regular arm for pull side mounting on 1-3/4 inch doors. The QDC120 carries an extra duty arm with hold open and a spring stop and is a non-handed body that mounts pull side or push side on wood, aluminum, or hollow metal doors and frames. If the existing opening relies on the arm for hold open and stop, a regular arm closer like the DC8200 will not reproduce that without added hardware, and the mounting holes will need to be verified against the existing prep.
11) Is the Stanley QDC120 a retrofit for an LCN 4040, and what if I want to stay with LCN?
The QDC100 platform the QDC120 belongs to shares the same footprint, bolt pattern and rounded cover as the LCN 4040, so it goes on as an off-and-on exchange without re-prepping the door. If you prefer to stay within the LCN line for a heavy duty opening, the LCN 1460T is a heavy duty Grade 1 commercial surface mounted closer in a powder coat finish. Verify its mounting pattern against the existing prep, since the retrofit footprint claim here applies to the QDC100.
12) For a 48 inch exterior door, is the QDC120 or a medium duty closer the right call?
The QDC120 covers 32 to 48 inch exterior doors and 30 to 48 inch interior doors with an adjustable size 1 to 6 spring, and is a heavy duty Grade 1 unit. Medium duty Grade 1 peers such as the Sargent 1131, the Sargent 1331 with a universal aluminum body, and the Norton Rixson 1601P tri-mount are aimed at medium-traffic commercial openings rather than wide exterior entrances under wind load. For a wide exterior leaf, stay with a heavy duty body such as the QDC120, the Sargent 1431 Powerglide, or the BEST HD8000 Series.
13) Does the Stanley QDC120 closer come with mounting screws, or do I order those separately?
Fasteners are included. Wood and machine screws come standard, and sex nuts plus self-reaming, self-tapping screws are standard as well. The sex nuts are what you want through a wood or mineral core door where a screw alone will not hold, and the self-reaming screws let you mount to hollow metal without pre-tapping.
14) What finishes does the Stanley QDC120 come in, and will it match my other closers?
Three finishes: 689 aluminum, 690 dark bronze, and 696 satin brass, each with a full-size metal cover. 689 and 690 are the two most commonly specified painted closer finishes in commercial buildings, so matching an existing fleet is usually a question of which of those two is already on your doors. All three are available in both left and right handing and with or without the barrier free option.
15) Is the QDC120 heavy duty enough for a school or hospital corridor?
That is what it is built for. Cast iron body, cold-forged pinion shaft and forged steel arms, rated heavy duty and Grade 1 to ANSI/BHMA A156.4, aimed at institutional and industrial traffic. Staked valves keep the adjustment screws from being backed all the way out and leaking oil, which is the usual failure mode on abused closers, and all-weather fluid keeps the sweep consistent on exterior doors through winter.
16) What are the heavy duty cast iron alternatives to the Stanley QDC120 door closer?
In the same heavy duty Grade 1 class, the BEST EHD9000 Series is the extra heavy duty equivalent with adjustable spring sizes 1-6, and the BEST HD8000 Series is the heavy duty Grade 1 option. Sargent's 281 Powerglide is a cast iron heavy duty Grade 1 closer, and the 1431 Powerglide is the adjustable spring power heavy duty version. Falcon SC71A is another heavy duty Grade 1. If you need the LCN footprint specifically rather than just the duty rating, the QDC120 is the one that matches that bolt pattern.
17) Should I pick the extra duty arm with spring stop or a tri-pack arm closer?
The extra duty arm with hold open and spring stop is for doors that get thrown open hard and where you want the door to stay open, common on service entrances, loading corridors and classrooms. It is handed, so it is ordered per opening. A tri-pack arm is non-handed and ships with regular, parallel and top jamb brackets in one box, so one part number covers any mounting on any hand, which is what property managers and distributors stock. If you are buying for a shelf rather than a specific door, the tri-pack is the easier item.
18) The QDC120 is more closer than I need for an interior office door - what is a lighter option?
For lower traffic interior openings, lighter Grade 1 surface closers include the BEST SL6000 Series, a Grade 1 light duty surface closer with adjustable spring sizes, the Norton Rixson 160 Series light commercial closer with an adjustable spring, and the Falcon SC61A, a light to medium duty Grade 1 cast aluminum closer. The QDC120 is a heavy duty Grade 1 unit with cast iron body construction and forged steel arms built for institutional and industrial traffic, so those lighter units trade that construction for a smaller body on doors that do not see abuse.
19) What should I use instead of the QDC120 if the opening needs a slide track or concealed-style arm?
The QDC120 uses a projecting extra duty arm with hold open and spring stop, which needs clearance to swing. Where a track is preferred, the Corbin Russwin DC5230 Series is a Grade 1 surface closer furnished with a slide track arm as standard for pull side mounting on 1-3/4 inch doors, and the Dorma 8916-JT is a Grade 1 heavy duty jamb track closer for frame face, pull side mounting with an adjustable size 1 to 6 spring. Both replace the scissor-style arm geometry with a track, which changes the mounting prep at the frame.
20) We standardize on tri-pack closers for stocking. What tri-mount options compare to the QDC120?
The QDC120 is a non-handed, universal mount body offered with a tri-pack arm or the extra duty arm, which is why it stocks well. Straight tri-mount alternatives include the Norton Rixson 8501A, a Grade 1 tri-mount surface closer with an adjustable size 1 to 6 spring, the Dexter DCH1000 Series Grade 1 tri mount closer with a full cover, and the Arrow DCN325, a Grade 1 surface closer with a regular/parallel tri-pack arm and adjustable spring size 1 to 6. Keep in mind the QDC120 configuration carries the hold open and spring stop arm, which those tri-pack arms do not include.
21) Our spec calls for a fire-rated, barrier free closer. Which of these meet that besides the QDC120?
The QDC120 is ANSI/BHMA A156.4 and ANSI A117.1 compliant, UL/cUL listed to UL10b and UL10c, and is offered in a barrier free configuration. Among peers built around barrier free operation, the Cal-Royal 500S is a Grade 1 barrier free closer with adjustable back-check, the Cal-Royal N900PBF is a Grade 1 barrier free hydraulic surface closer, and the Imperial USA TC4300 is a heavy duty size 1 to 6 ADA closer. Confirm the listed fire label requirement separately for whichever one you spec, since the QDC120 is the one carrying the UL10c reference here.
22) What is the difference between the QDC120 and the Cal-Royal 400 Series?
The grade separates them. The Cal-Royal 400 Series is a Grade 2 commercial hydraulic door closer, while the QDC120 is ANSI/BHMA Grade 1 heavy duty and certified to ANSI/BHMA A156.4. If the drawing or the facility standard calls out Grade 1, the 400 Series will not satisfy it; on a light interior opening with no grade requirement it remains a commercial hydraulic closer.
23) I want a cast iron closer body. Which alternatives to the QDC120 are cast iron?
The QDC120 uses cast iron body construction with a cold-forged pinion shaft and forged steel arms. Among the peers, the Sargent 281 Powerglide is a cast iron surface closer with heavy-duty construction, and the LCN 1261 is a surface mounted closer with cast iron construction and adjustable spring sizes 1 to 5. By contrast, the Falcon SC81A and SC61A use cast aluminum bodies, and the LCN 1450 is cast aluminum, so those are a different construction if cast iron is the requirement.
24) Are the Design Hardware 116 and 416 heavy duty closers a substitute for the QDC120 arm with hold open?
Only on duty level, not on arm function. The Design Hardware 116 Series and 416 Series are both heavy duty closers, but each is furnished with a tri-packed non-hold open arm, as is the 316 Series, rated medium to heavy duty. The QDC120 configuration carries an extra duty arm with hold open and spring stop. Use the Design Hardware units where the door simply needs to close and a separate stop is already on the opening.
25) Which closers besides the QDC120 offer a delayed action function?
Delayed action is available on the QDC120 as a premium performance option, alongside a back check valve that comes standard on the Grade 1 QDC100 platform. Among the peers, the Orca Hardware BHDC1958DA/PA and BHDC2011DA/PA are delayed action closers furnished with a regular arm and parallel bracket for 1-3/4 inch doors. Both of those carry a tri-packed non-hold open arm, so they deliver the slow initial sweep without the hold open and spring stop the QDC120 extra duty arm provides.
26) Will a Deltana DC70 do the same job as a Stanley QDC120?
They are different classes of product. The QDC120 is a commercial, ANSI/BHMA Grade 1 heavy duty closer certified to A156.4 and UL/cUL listed for fire door use under UL10b and UL10c, mounting on wood, aluminum, or hollow metal doors and frames. The Deltana DC70 is a door closer in the DC70 series without those commercial certifications attached to it. On a labeled fire door or a graded institutional spec, the QDC120 is the one that answers the requirement.
27) What is a Grade 1 alternative to the QDC120 for an aluminum storefront entrance?
The QDC120 mounts on wood, aluminum, or hollow metal doors and frames, so it does suit a storefront leaf. If you want a closer built specifically around that opening, the Norton Rixson 1600 Series aluminum storefront door closer is a Grade 1 heavy duty unit with tri-style mounting. Check the top rail height and stile width on the storefront door before committing to either, since a full-size metal cover body needs the rail to land on.
28) Does the Stanley QDC120 have delayed action for a slow-closing accessible door?
Delayed action is offered as a performance option across the QDC100 Series, and back check is standard. Delayed action is what you want on an accessible door or a door used with carts, where the leaf needs to hang open a few seconds before it starts its sweep. Specify the delayed action option when ordering if the opening needs it.
29) The QDC120 comes with a full-size metal cover. What comparable closers include a cover?
The QDC120 configuration includes an M full-size metal cover. Among peers, the Dexter DCH1000 Series is a Grade 1 tri mount surface closer supplied with a full cover, and the Design Hardware 316 Series is a heavy duty closer supplied with a cover. Going the other direction, the Arrow DCN314 and DCN325 are Grade 1 surface closers supplied less cover with a regular/parallel tri-pack arm, which suits back-of-house openings where the cover is not wanted.
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Does the Stanley Security QDC120 M 689 LH come with a warranty?
Absolutely. The Stanley Security QDC120 M 689 LH is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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