Dormakaba Parts

Dormakaba parts are genuine replacement and accessory components for dormakaba door closer systems, including concealed floor closers in the BTS80 and BTS75V series, overhead concealed RTS series closers, and surface-applied closer arms in the MOD series. When a floor closer spindle wears out, a closer arm fails, or a floor plate needs replacement, the correct dormakaba part number is the only specification that ensures the replacement component fits, operates within the closer's design parameters, and maintains the warranty integrity of the installed unit. American Locksets is an authorized dormakaba dealer stocking dormakaba door closer parts, spindles, floor plates, closer arms, and replacement closer bodies with same-day shipping and free shipping on all orders over $300.

Dormakaba Door Closer Parts: BTS80 and BTS75V Floor Closer Components

The BTS80 and BTS75V are dormakaba's floor-concealed door closer series. The closer body installs below floor level in a cement case, with the spindle connecting the floor-mounted mechanism to the pivot point at the bottom of the door. The spindle is the most commonly replaced dormakaba spare part across both series because spindle clearance requirements change when floor coverings are added, replaced, or modified after the initial installation.

Dormakaba BTS80 Floor Closer Bodies

The Dormakaba BTS80 SZ4 Non-Hold Open Concealed Floor Closer Body and BTS80 SZ6 Body are replacement closer bodies for the BTS80 Series in Size 4 and Size 6 spring configurations. These bodies accommodate doors up to 660 lbs., interior door widths up to 54 inches, and exterior widths up to 48 inches. The BTS80 is ANSI/BHMA Grade 1 certified, UL listed for use with fire doors, and supports single-acting, double-acting, center-hung, and offset applications through interchangeable spindles. The body uses a non-handed universal design, with hand orientation determined at installation. Spindle is not included with the body and must be ordered separately based on floor covering height and clearance requirement.

Dormakaba BTS75V Floor Closer Body

The Dormakaba BTS75V BF NHO Non-Hold Open Barrier Free Concealed Floor Closer Body covers size 1 through 4 spring power, adjustable in the field, and is rated ANSI A156.4 Grade 1, UL and CUL listed. The BTS75V Barrier Free specification means the spring power is adjustable to ADA 5 lb. opening force compliance for openings required to meet accessibility requirements. Maximum door width is 42 inches with door weight up to 260 lbs. Like the BTS80, spindles are sold separately.

Dormakaba Spindle Parts for BTS Series Floor Closers

Spindle selection depends entirely on the clearance required between the door bottom and the finished floor surface. Installing the wrong spindle causes the closer to bind or the door to not fully seat when closed. All spindles are for the BTS series floor closer platform.

The 74000 standard spindle series covers five clearance heights:

• Dormakaba 74003 Closer Spindle, 5/16 Inch Clearance

• Dormakaba 74005 Closer Spindle, 1/2 Inch Clearance

• Dormakaba 74007 Closer Spindle, 5/8 Inch Clearance

• Dormakaba 74010 Closer Spindle, 3/4 Inch Clearance

• Dormakaba 74015 Closer Spindle, 7/8 Inch Clearance

The 80000 interchangeable center-hung spindle series covers the same clearance range for center-hung single-acting configurations:

• Dormakaba 80003 Interchangeable Spindle, 5/16 Inch Clearance

• Dormakaba 80005 Interchangeable Spindle, 1/2 Inch Clearance

• Dormakaba 80010 Interchangeable Spindle, Left Hand, 3/4 Inch Clearance

• Dormakaba 80015 Interchangeable Spindle, 7/8 Inch Clearance

Dormakaba Floor Plates and Bottom Arms

Floor plates cover and protect the floor closer mechanism at the finished floor level. Using the correct floor plate for the installed closer model is required since BTS80 and BTS75V plate dimensions differ.

• Dormakaba 7410 Floor Plate for BTS 80, 80 F, and 80 EMB closers

• Dormakaba 7510 Floor Plate for BTS 75V closers

• Dormakaba 7421 Center Hung Bottom Arm for Wood and Steel Doors

• Dormakaba 15323 626 1-1/2 Inch Offset Steel Bottom Arm with Cover Cap, Satin Chrome

Dormakaba MOD Series Closer Arms for RTS and Standard Closers

The MOD series covers heavy-duty closer arms for dormakaba surface-mounted and overhead concealed closers. Each arm configuration serves a specific reveal range or mounting condition.

• MOD IS 689 Heavy-Duty Cushion Regular/Top Jamb Arm, 0-3-1/2 Inch Reveal

• MOD ISJ 689 Heavy-Duty Cushion Top Jamb Arm, 3-1/2 to 6-1/2 Inch Reveal

• MOD PH 689 Plunger Hold Open Regular Arm, 0-1-1/2 Inch Reveal

• MOD PHP 689 Plunger Hold Open Regular Arm with P89 Bracket, 1-1/2 to 3-1/2 Inch Reveal

• MOD FHP 689 Friction Hold Open Arm with PHB Bracket, 0-4 Inch Reveal

• MOD SPA 689 Heavy-Duty Parallel Arm, Super Parallel

• MOD SPAT 689 Heavy-Duty Parallel Arm with Thumb Turn Hold Open

• MOD DS 689 Parallel Arm with Door Saver Cushion

Dormakaba RTS Series Parts and Floor Pivot Sets

The RTS Series overhead concealed closer uses a different parts ecosystem from the BTS floor closer line. Arms, slide channels, end-load pivots, and conversion brackets are series-specific.

• Dormakaba 8812 Offset Slide Arm and Channel for RTS Series

• Dormakaba 8820J Conversion Bracket for Jackson Replacement, RTS Series

• Dormakaba 8831 Standard Side Load Arm, 1/2 Inch Top Rail, RTS Series

• Dormakaba 8836 End Load Arms for Aluminum or Tempered Glass Doors, 7/8 Inch Top Rail

• Dormakaba 8570 Adjustable Side Load Floor Pivot Set, 1-15/16 Inch Channel Depth, RTS Series

• Dormakaba 8852 Adjustable End Load Floor Pivot Set, 7/8 Inch Channel Depth, RTS Series

Browse the complete Dormakaba Door Closers catalog, Dormakaba Concealed Closers, Dormakaba Pivots, and all Dormakaba hardware stocked at American Locksets. If you are unsure which spindle clearance, arm configuration, or closer series part number applies to your installed unit, call 877-471-4870 before ordering. Ordering the wrong spindle or arm for the specific closer model creates a non-functional installation that requires a second shipment.

Frequently Asked Questions 

Q: What are dormakaba parts? 

Dormakaba parts are genuine replacement and accessory components for dormakaba floor closers, overhead concealed closers, and surface closer arms, including spindles, floor plates, closer bodies, and closer arms.

Q: What is the difference between BTS80 and BTS75V dormakaba spare parts?

 The BTS80 handles heavier doors (up to 660 lbs.) and wider openings. The BTS75V is ADA barrier-free rated with adjustable spring power sizes 1-4. Floor plates, spindles, and bottom arms are not interchangeable between the two series.

Q: How do I choose the correct dormakaba spindle?

 Spindle selection is based on the clearance height between the door bottom and the finished floor surface. Clearances available range from 5/16 inch to 7/8 inch. 

Q: Are dormakaba closer arms series-specific?

 Yes. MOD series arms are for RTS and standard surface closers. RTS series arms, slide channels, and pivot sets are for overhead concealed RTS closers specifically. The two systems use different mounting geometry.

Q: Can I replace just the closer body on a BTS80 without replacing the entire installation? 

Yes. The BTS80 and BTS75V closer bodies are sold separately from spindles and floor plates. The cement case and floor-level components remain in place during a body swap.

Q: Does the dormakaba BTS80 meet ADA opening force requirements? 

The BTS80 can be adjusted to meet ADA 5 lb. opening force requirements. The BTS75V Barrier Free model is specifically designed for ADA-compliant applications with adjustable spring power.

Q: What dormakaba parts do I need for a new BTS80 floor closer installation? 

A complete installation requires the closer body, the appropriate spindle for the floor clearance height, a floor plate (7410 for BTS80), and a bottom arm or pivot set depending on door type and configuration.