Dorma RTS88 Series - RTS18 Ove...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$950.00
$681.83
Dorma RTS88 Series - RTS18 Overhead Concealed Door Closer, Center Hung End Load, Double or Single Acting, Aluminum Door and Frame Application (Non-Handed)

Dorma RTS88 Series - RTS18 Overhead Concealed Door Closer, Center Hung End Load, Double or Single Acting, Aluminum Door and Frame Application (Non-Handed)

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Model: RTS18 105 NHO SZ3
$950.00
$681.83
Selected Finish (Including 8653 Cover Frame) is

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

$950.00
$681.83
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DORMA RTS88 Series Overhead Concealed Door Closer

The RTS88 is designed to give lasting, dependable service where surface applied units and other types of closers are not suitable, or would interfere with the architectural design. It can be easily installed in wood, aluminum, or hollow metal doors and frames, for single and double-acting doors.

  • Concealed installation
  • For single and double-acting doors
  • Dependable and easy to Install

Aesthetic advantages

Architects are often challenged to design buildings that are both beautiful and functional, down to the last detail. The DORMA RTS88 overhead concealed door closer offers the perfect solution for those who prefer the aesthetic advantages of a concealed door closer.

Vandalism protection

The RTS88 is an excellent replacement closer for problem entrances encountering vandalism of surface applied closers.

Benefits for the contractor

Contractors appreciate the RTS88 closer, because the majority of door and frame preparation is done prior to installation of the unit, resulting in less on-site machining.

Resources:
RTS88 Series Catalog

Manufacturer Resources

Product Specs

Product Group:
Door Controls
Series:
RTS Series
Product Subgroup:
Door Closers - Overhead Concealed
Product Type:
Overhead Concealed Door Closers
Subcategory:
Concealed Door Closers
Door Weight:
250 lbs
Door Swing:
Single or Double Acting
Commercial/Residential:
Commercial
Package Features:
CH End; Aluminum Door and Frame
Product Model:
RTS18
Door Hand Direction:
Non-Handed
Product Category:
Door Controls
Department:
Door Hardware

Dormakaba RTS18 105 NHO SZ3 – Frequently Asked Questions

1) Will the Dorma RTS18 concealed closer handle a heavy aluminum entrance door?
The RTS18 is rated for doors up to 250 lbs, which covers most aluminum storefront entrances. It's a commercial-duty unit, and the spring size you pick has to match the door width: SZ3 covers 3'-0" to 3'-6" interior or 2'-6" to 3'-0" exterior, SZ4 covers 3'-6" to 4'-0" interior or 3'-0" to 3'-6" exterior. Weight capacity and spring size are separate decisions, so confirm both.
2) Do I need to specify handing for the RTS18 overhead concealed closer?
No. The RTS18 is non-handed, so one unit works on a left or right hand opening. It also handles single acting or double acting doors, so the same closer covers a swing-through center hung door and a one-way entrance.
3) Is the RTS18 for center hung doors or offset pivot doors?
Center hung, end load. That means the door pivots on its centerline and the closer spindle drives the door from the top rail at the end of the closer body. If your opening is offset pivoted, this is the wrong unit; an offset hung concealed closer such as the Norton Rixson 0608 Series for aluminum doors is the type you want instead.
4) What ADA / barrier-free options are there for a Dorma RTS18 concealed closer?
Two barrier-free spring sizes are offered, both sized for a 3'-0" door: BFE for light opening force on exterior doors and BFI for light opening force on interior doors. SZ2 is also a light opening force spring. If reduced opening force is a requirement in your building, order BFE or BFI rather than SZ3 or SZ4.
5) Do I need to add anything else to the RTS18 to finish the installation?
Three package options exist. Standard is the closer as-is. You can add the 8563 frame cover plate if the head frame needs to be closed off cleanly. There's also a version with a 5mm extended spindle, which is what you order when the top rail or pivot stack puts the door a little further from the closer body than standard. Pick the spindle length before ordering, not on site.
6) Can I order just a closer body to drop into an existing concealed pocket instead of a full RTS18?
If the existing header already has a working concealed installation and you only need the mechanism, CRL Jackson sells body-only overhead concealed closers: the 20-101M-01 is a regular duty body with 105 degree non hold open, the 20-101M-03 is the same regular duty body with 90 degree non hold open, the 20-101M-09 is a heavy duty body at 105 degree non hold open, and the 20-101M-17 is an adjustable spring power body at 105 degree non hold open. The RTS18 is sold as a closer for aluminum door and frame applications with its own cushion choice of 90 or 105 degrees and hold open offered as yes or no, so it is the route when you are preparing the door and frame rather than swapping a mechanism into someone else's pocket.
7) What is the closest equivalent to the Dorma RTS18 overhead concealed closer from another manufacturer?
The Norton Rixson 73 Series is the nearest match. Like the RTS18, it is a center hung overhead concealed closer rated for 250 lb doors, it is double acting, and it ships with a cover plate - the RTS18 offers a cover frame option as well through its 8563 frame cover plate package. The Rixson 73 is listed as heavy duty and Grade 1. The RTS18 is a center hung end load unit intended for aluminum door and frame applications and is non-handed, so it can go in either hand of opening without a separate part number.
8) My door is offset hung, not center hung - what concealed closer should I use instead of the RTS18?
The RTS18 is a center hung end load unit, so it will not suit an offset hung opening. For offset hung aluminum doors, the Norton Rixson 0608 Series is an offset hung overhead concealed closer for aluminum doors up to 200 lbs, listed as standard duty. Check the door weight against that 200 lb figure; the RTS18 is rated to 250 lbs, so a heavier leaf may need a different offset solution.
9) I need the door to swing a full 180 degrees - will the RTS18 do that?
The RTS18 is built with a cushion stop at either 90 degrees or 105 degrees, so it is set up to control the door to those points. If the opening has to swing 180 degrees, the Sargent 269 is an overhead concealed closer with 180 degree opening capability, listed as heavy duty Grade 1. Confirm the hung method and frame prep on your opening before substituting, since the RTS18 is a center hung end load unit.
10) Can I get the RTS18 with hold open, and what does the cushion degree mean?
Hold open is an option, yes or no, and it's selected when you order. Separately you pick the cushion point, 90 degrees or 105 degrees. The cushion is where the closer starts absorbing the opening swing to protect the door and adjacent wall; 105 degrees suits an opening with room to swing wider, 90 degrees suits a tighter reveal or a door that shouldn't pass a side light.
11) Is a concealed closer worth it over a surface closer on a vandal-prone entrance?
That's exactly the case the RTS88 family is built for. With the closer inside the head frame there's nothing exposed to pry, hang on, or unscrew, and nothing breaking the sightline of the storefront. The tradeoff is prep: most of the door and frame machining happens before the unit goes in, so it's an easier install on new or shop-prepped openings than on an existing door with no pocket.
12) Can the Dorma RTS88 concealed closer go in a wood or hollow metal door instead of aluminum?
The RTS88 series installs in wood, aluminum, or hollow metal doors and frames. The RTS18 specifically is packaged for aluminum door and frame applications with center hung end load, so for a wood or hollow metal opening you want the corresponding RTS88 model for that material rather than this one.
13) My door is under 200 lbs and center hung - is there a lighter-duty concealed closer than the RTS18?
Yes. The Norton Rixson 608 Series and the Norton Rixson 700 Series are both center hung overhead concealed closers rated for 200 lb doors and listed as standard duty. The RTS18 is specified at 250 lbs, so if the leaf is well under that and you do not need the RTS18's spring size range - SZ2 through SZ4 plus barrier-free BFI and BFE options - a 200 lb standard duty body covers the opening.
14) My spec calls for a Grade 1 concealed closer - what meets that if the RTS18 does not fit the schedule?
The Sargent 268 with a cast iron body, the Sargent 269, and the Sargent 278 with an exposed arm are all listed as heavy duty, Grade 1 overhead concealed closers, as is the Norton Rixson 73 Series. Note the 278 uses an exposed arm, so it will not give the fully concealed look the RTS18 provides; the RTS18 is a concealed installation intended for entrances where surface applied units would interfere with the architectural design.
15) Does a CRL Jackson body-only closer give me the barrier-free opening force the RTS18 offers?
The CRL Jackson concealed closers are catalogued by function - 20-101M-01 and 20-101M-09 as 105 degree non hold open, 20-101M-03 as 90 degree non hold open - with the 20-101M-17 described as adjustable spring power. The RTS18 is ordered with a specific spring size, including BFI for barrier free light opening force on interior doors at 3'-0" width and BFE for barrier free light opening force on exterior doors at 3'-0" width, so if you are writing an accessible opening force into the submittal the RTS18 lets you call it out by spring size on the order.
16) I need a hold open concealed closer - which options actually offer it?
The RTS18 is ordered with hold open as a yes or no choice, paired with a 90 degree or 105 degree cushion. Among the alternatives, the CRL Jackson bodies 20-101M-01, 20-101M-03, 20-101M-09 and 20-101M-17 are all non hold open, so none of them will substitute if the opening needs to stand open. Confirm hold open against your local code before specifying it on an egress or fire rated opening.
17) What finishes does the Dorma RTS18 closer come in, and does the cover frame match?
Seven finishes: 600 prime coat, 689 aluminum, 690 statuary bronze, 691 dull bronze, 693 black, 695 dark duradonic bronze and 696 gold. The finish selection covers the 8653 cover frame as well, so the exposed frame trim matches the closer rather than being specified separately.
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Does the Dormakaba RTS18 105 NHO SZ3 come with a warranty?
Absolutely. The Dormakaba RTS18 105 NHO SZ3 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 Dormakaba RTS18 105 NHO SZ3?
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