Dormakaba RTS 88 Overhead Concealed Closer - REPLACEMENT BODIES ONLY w/ +5mm (11/16") Spindle
Aroyan only stocks the Size 3 Body with 11/16 (extended 5mm) Spindle - All other configurations are factory order.
The DORMA RTS88 Series Concealed Overhead Door Closer is a heavy-duty overhead closer designed for both single-acting and double-acting doors. Concealed within the door header, the RTS88 provides smooth, reliable door control while maintaining a clean architectural appearance.
Constructed with a compact cast iron body, hardened steel cam, rollers, and heavy-duty springs, the RTS88 is engineered for long-lasting performance in commercial storefront, office, institutional, and retail applications.
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Product Manual
Features
- Concealed overhead door closer
- Suitable for single-acting and double-acting doors
- Heavy-duty cast iron body
- Hardened steel cam and roller assembly
- Dual steel pistons
- Heavy-duty spindle ball bearings
- Non-handed design
- Fits headers as small as 1-3/4" x 4"
- Maximum opening angle of 90° or 105° (trim permitting)
- Adjustable sweep and latch speeds
- Thermostatic valves provide consistent closing speeds in varying temperatures
- Built-in pressure relief valve protects against forced closing
- Integral cushion limits door opening to 90° or 105°
- Mechanical back check slows the door before reaching the cushion
- Optional mechanical hold-open available at 90° or 105°
- Manufactured to ANSI A156.4 standards
Stock Configuration
Stocking closers include an 11/16" extended spindle, making them ideal for aluminum storefront door applications.
Closer Sizes
Size 2
- Up to 2'-6" exterior doors
- Up to 3'-0" interior doors
Size 3 - STOCKED
- Up to 3'-0" exterior doors
- Up to 3'-6" interior doors
Size 4
- Up to 3'-6" exterior doors
- Up to 4'-0" interior doors
Size BFI (ADA Interior)
- Maximum 5 lb. opening force
- ADA compliant for interior doors
- Available in 105° only
Size BFE (ADA Exterior)
- Maximum 8.5 lb. opening force
- ADA compliant for exterior doors
- Available in 105° only
Technical Specifications
- Compact body fits headers as small as 1-3/4" x 4"
- Maximum door weight:
- 250 lbs. (Interior)
- 200 lbs. (Exterior)
- Sweep speed adjustment: 105° to 20°
- Latch speed adjustment: 20° to 0°
- Pressure relief valve protects against abusive closing
- Mechanical back check and integral cushion for additional door protection
- Auxiliary stop is required with all RTS88 installations
Lead Time
- Closer Sizes 2, 4, BFI, and BFE:
Minimum one-week factory lead time.
- All 1/2" spindle models:
Minimum one-week factory lead time.
The DORMA RTS88 is one of the industry's most trusted concealed overhead closers, offering exceptional durability, precise door control, and a clean, concealed installation for commercial aluminum storefronts, office buildings, schools, healthcare facilities, and other high-traffic applications.
Looking for a lower-cost option?
We have a limited quantity of 1/2" spindle
RTS88 closers available due to a factory ordering error. These units are offered at a discounted price while supplies last. See our separate listing for availability
