Name: LCN 3133-PLATED Concealed Door Closer with Single Lever Arm Track and Plated Finish
Brand: LCN
SKU: 3133-652
Price: 970.21 USD
Availability: InStock

Product Overview
FAQs

LCN 3133 Concealed Door Closer with Single Lever Arm Track and Plated Finish

Professional Concealed Door Closer Solution

The LCN 3133 Concealed Door Closer delivers professional-grade door control for interior applications requiring complete concealment. Designed to mount within 1-3/4" interior doors up to 4'0" width, this Grade 1 certified closer features cast iron construction with 1-1/8" diameter forged steel piston and single lever arm with roller assembly. ANSI/BHMA A156.4 Grade 1 standards and UL listing ensure code compliance for demanding commercial applications.

Professional Features & Benefits

Door Compatibility: Designed for 1-3/4" interior doors up to 4'0" width with complete concealment for architectural flexibility.
Heavy-Duty Construction: Cast iron cylinder with 1-1/8" diameter forged steel piston and full-complement bearing for exceptional durability in high-traffic applications.
Grade 1 Performance: ANSI/BHMA A156.4 Grade 1 certified with UL and cUL listing for self-closing doors ensuring code compliance and reliability.
ADA Compliance: Meets American Disabilities Act reduced opening force requirements for accessible door operation.
Concealed Operation: Single lever arm and low-friction track and roller assembly provide complete concealment while maintaining optimal door control.
Adjustable Speed Control: Separate regulation of general closing speed and latching speed with tamper-resistant regulating screws for precise operation.
All-Weather Performance: All-weather fluid ensures consistent operation across temperature variations and environmental conditions.
Manufacturer Warranty: 15-year limited warranty for added confidence and long-term protection.

Technical Specifications

ADA Compliant: No
BAA Qualified: Yes
Closer Size: 3
Commercial/Residential: Commercial
Default Arm/Track: Standard Arm (STDTRKARM)
Delay Function: No
Department: Door Hardware
Door Type: Interior Door
Duty Level: Medium Duty
Fasteners: Wood and Machine Screws
Finish Type: Plated
Fluid Type: All-Weather
Handle Type: Lever
Mounting Detail: Concealed - In the Door
Mounting Location: In the Door
Mounting Method: Concealed
Product Category: Door Controls
Product Group: Door Controls
Product Model: 3133
Product Subgroup: Door Closers - Overhead Concealed
Product Substrate: Iron
Product Type: Overhead Concealed Closers
Series: 3130 Series
Subcategory: Concealed Closers
Warranty: 15 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 construction and forged steel components rated for Grade 1 performance. Backed by a 15-year limited warranty and UL listing, this concealed closer is engineered for demanding commercial applications where dependable performance and architectural aesthetics are essential.

Manufacturer Resources

LCN Full Line Catalog

LCN Concealed Closers catalog section

LCN 3030 Series catalog section

LCN 3130 Series catalog section

Choosing the Right Concealed Closer

LCN Installation Instructions/Templates Index

Product Specs

Series:: 3130 Series
ADA Compliant:: No
BAA Qualified:: Yes
Warranty:: 15 Year
Closer Size:: 3
Default Arm/Track:: Standard Arm (STDTRKARM)
Duty Level:: Medium Duty
Subcategory:: Concealed Closers
Mounting Location:: In the Door
Product Group:: Door Controls
Product Subgroup:: Door Closers - Overhead Concealed
Product Type:: Overhead Concealed Closers
Mounting Detail:: Concealed - In the Door
Door Type:: Interior Door
Finish Type:: Plated
Fluid Type:: All-Weather
Fasteners:: Wood and Machine Screws
Commercial/Residential:: Commercial
Handle Type:: Lever
Product Model:: 3133
Delay Function:: No
Mounting Method:: Concealed
Product Category:: Door Controls
Product Substrate:: Iron
Department:: Door Hardware

LCN 3133-652 – Frequently Asked Questions

1) Will the LCN 3133 concealed closer fit a 1-3/4 inch door, and how wide a door can it handle?

The 3133 is built into a 1-3/4 inch interior door and is rated for doors up to 4 feet wide. That is the whole envelope: it is a single-thickness device, so a 1-3/8 inch door or a thicker exterior slab is out, and a 4'0" leaf is the ceiling. Anything wider or an exterior opening needs a different closer. The closer body mounts inside the door itself, so the door has to be prepped for the pocket before it hangs.

2) Do I have to specify handing when ordering an LCN 3133 concealed closer?

Yes, handing is a required choice. The 3133 is ordered right hand or left hand, and right hand is the default. A concealed-in-door closer is machined into one edge of the door, so a left hand unit cannot be flipped in the field the way a surface closer can. Determine the hand from the swing before you order.

3) Which track do I pick for an LCN 3133, and what does the hold-open version do?

Track is a required selection on the 3133, with four choices: standard track, hold-open track (H), track with bumper (BUMP), and hold-open track with bumper (HBMP). Standard track just closes the door. The hold-open track lets the leaf stay parked open at a set point, which is what you want on a receiving door or a classroom you prop during the day. The bumper option adds a stop in the track to protect the wall or adjacent hardware where there is no separate door stop. HBMP gives you both. Note that a hold-open track is generally not acceptable on a labeled fire door assembly.

4) Concealed closer or surface mounted closer, which should I use on a commercial interior door?

Go concealed when the closer must not be seen. The 3133 mounts inside the door leaf with a single lever arm running in a low-friction track in the frame head, so nothing shows on the face of the door when it is shut. The trade is preparation: the door has to be routed for the closer body at the factory or shop, and servicing means pulling the unit out of the door. A surface mounted closer sits on the face or the frame, installs on an existing door with a template and screws, and is far easier to swap later. If you are retrofitting doors already hung and nobody is objecting to the look, surface mounted is the simpler job. If the architect specified a clean opening, the 3133 is the type you want.

5) Is the LCN 3133 closer rated Grade 1, and is it UL listed?

The 3133 is certified to ANSI/BHMA A156.4 Grade 1 and carries UL and cUL listing for self-closing doors. For a spec that calls for Grade 1 door control on interior openings, that satisfies the line item. It is also BAA qualified, which matters if you are buying under a federal or federally funded contract with domestic sourcing language.

6) What size is the LCN 3133 closer and what traffic level is it built for?

The 3133 is a size 3 closer, medium duty, for commercial interior use. Size 3 is the middle of the standard closer sizing range and matches a typical interior office or corridor door up to the 4'0" width limit. The body is cast iron with a 1-1/8 inch diameter forged steel piston and a full-complement bearing. For very high abuse openings, a stairwell, or an exterior door, step up to a heavy duty closer instead.

7) Can I adjust the closing speed on the LCN 3133 after it is installed?

Closing speed and latching speed adjust separately on the 3133, through tamper-resistant regulating screws. That means you can slow the general swing for occupant comfort and still keep enough latching speed to throw the bolt into the strike. The tamper resistance is worth having in a school or a public corridor where the valves would otherwise get turned by anyone with a screwdriver. There is no delayed action function on this model, so if you need a hold-back for accessibility or cart traffic, specify a closer with a delay feature.

8) Are mounting screws included with the LCN 3133, or do I need to supply fasteners?

Both wood and machine screws come with the 3133, so it covers a wood door and frame or a hollow metal application without a separate fastener order. What is not in the box is the door preparation itself: the leaf has to be routed for the concealed body and the frame head prepped for the track. On a new opening that is done at the door shop, and on a retrofit it is shop or field machining work you need to plan for.

9) I am standardizing closers across a building. Can I use the LCN 3133 on every door?

Only on interior leaves up to 4 feet wide at 1-3/4 inches thick, and only where the doors are prepped for a concealed body. That typically covers offices, corridors, and tenant entries. Doors wider than 4'0", exterior openings, and any door not machined for a concealed closer need a different unit, which in practice means a surface mounted closer on the retrofit doors and a heavier size on the wide or high-traffic leaves. Within the doors it does suit, the 3133 standardizes cleanly: one size 3 medium duty unit, one track type, and one finish across the fleet, with only handing varying door to door.

10) What finishes does the LCN 3133 concealed closer come in?

Seven plated finishes: 616 satin bronze blackened, 632 bright brass, 633 satin brass, 639 satin bronze, 646 satin nickel, 651 bright chrome, and 652 satin chrome. Because the 3133 is concealed in the door, the only part a person sees is the arm and track at the frame head, so pick the finish to match the frame trim and the lever hardware on the opening rather than the door face. 652 satin chrome and 626-family satin finishes are the usual match for commercial lever sets.

11) Will an LCN 3133 keep working in an unheated warehouse or a cold vestibule?

The 3133 uses all-weather fluid, so the closing speed holds steady as temperatures swing instead of slowing to a crawl when it gets cold. That covers unconditioned spaces like warehouse interiors and loading areas. Keep in mind it is specified as an interior door closer, so it belongs on an inside opening within that building, not on the exterior door itself.

How fast can I get the LCN 3133-652 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 3133-652 come with a warranty?

Absolutely. The LCN 3133-652 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 3133-652?

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 3133-652 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.

LCN 3133-PLATED Concealed Door Closer with Single Lever Arm Track and Plated Finish

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