• A view of a dormakaba RTS85 Transom Door Closer with its packaging, predominantly grey in colour. On a white background.
  • A view of a white rectangular box with the logo dormakaba printed in ble and red. On a white background.
  • A view of a dormakaba RTS85 Transom Door Closer predominantly grey in colour. On a white background.
  • A view of a dormakaba RTS85 Transom Door Closer predominantly grey in colour. On a white background.
  • A view of a dormakaba RTS85 Transom Door Closer predominantly grey in colour. On a white background.
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dormakaba RTS85 Transom Door Closer

dormakaba RTS85 Transom Door Closer

Net: £196.63
Incl. VAT: £235.96
Taxes included.
Delivery info
  • In-stock items: same-day dispatch when ordered before 1 pm, Monday–Friday, excluding bank holidays.
  • Other standard items: next working day dispatch.
  • Customised and bespoke items: individual lead times apply. Confirmation will be sent after ordering.
  • Free delivery on eligible orders over £300. Exclusions apply.
  • View delivery and collection details

Instruction Manual

View Manual

dormakaba RTS85 Transom Door Closer – Concealed High-Performance Door Control

The dormakaba RTS85 Transom Door Closer is a concealed door closer engineered for discreet, reliable performance, suitable for internal or external commercial doors. With a sleek, hidden design and adjustable closing mechanisms, it offers aesthetically pleasing door control for EN 4 applications up to 1100mm wide, subject to the door arrangement and compatible pivot hardware. This listing offers Hold Open and Non Hold Open options for suitable single and double action aluminium or timber doors.

Key Features & Benefits:

  • High-Performance, Concealed Design: Provides clean aesthetics and reliable, concealed door control ideal for modern architectural settings.

  • Fixed Power Size (EN 4): For suitable doors up to 1100mm wide; confirm the pivot assembly's weight rating for the complete installation.

  • Options on this listing:

    • Hold Open — stock code 072706. Confirm the required holding angle before ordering.
    • Non Hold Open — stock code 072707, for doors that should return to the closed position.

  • Adjustable Closing Features: Closing and final closing speeds are adjusted by valves. The integrated progressive backcheck is mechanical.

  • Easy Installation & Adaptation: Simplifies on-site installation with minimal floor preparation. Adjustable before final fixing for increased convenience.

  • Compliance & Certification: The manufacturer lists EN 1154 testing for the closer. ISO 9001 relates to the manufacturer's quality management system; suitability must be checked for the door application.

Technical Specifications:

  • Model: dormakaba RTS85 Transom Door Closer

  • Type: Concealed door closer

  • Power Size: EN 4 fixed

  • Door Weight: Check the selected pivot hardware and door configuration

  • Door Width: Up to 1100mm

  • Door Action: Single or double action

  • Installation: Internal or external doors

  • Closing Adjustments: Variable closing and final closing speeds; mechanical backcheck

  • Certification: EN 1154 testing; manufacturer quality management to ISO 9001

 

Replacing a concealed transom closer

Check the existing closer markings, spindle height, pivot position and arm connection before ordering. The RTS85 body alone does not determine the complete door's load capacity. Contact us with photographs and measurements if you need help matching the closer and its fittings.

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Manufacturer Part Number

FAQ's

What type of closer is the dormakaba RTS85?

The RTS85 is a concealed transom door closer for compatible single- or double-action doors.

What maximum door size is stated for the RTS85?

The listing states suitability for doors up to 1100mm wide and 110kg.

What closer power size is specified?

The RTS85 is specified as fixed power size EN 4.

Which hold-open options are listed?

The product information lists non-hold-open, 90° hold-open, 105° hold-open and blind-closer versions.

What closing functions can be adjusted?

The listing states adjustable closing speed, latch action and backcheck.