All orders over £500 get free delivery

Next Day Delivery for
In Stock Items

Dorma RTS 85 Transom Spring

Dorma RTS 85

This transom spring unit can be used to control the movement of the door whilst not affecting the appearance of the doorway. In our opinion this is the best transom unit available, at present. This unit is available in 3 strengths (same price).

Dimensions
Length Height Depth
323mm 38mm 90mm

Finish: N/A

Strength: EN3, EN4 or EN5 (same price)

Non Handed
Single and Double Action
Adjustable Closing Speed
Back Check
Non-Hold Open (option) or
Hold Open (option)
Final Closing Speed
Back Stop

Cost: There is one cost option available with this product:

  • RTS 85 Unit only. Hold Open (option) or Non-hold Open (option). Strength EN3, EN4 or EN5: £74.05 + VAT

Contact us about this product

Dorma RTS 85 Dummy Unit Box

Suitable to be used in place of existing Dorma RTS 85, Groom, Axim and Peter Jackson units.

  • Cost: £38.69 + VAT

Contact us about this product

Phone London: 020 7242 1777 or Essex: 01277 375 040

View the Transom Spring Unit Accessories Page.
Return to the main products page.

Glossary of Terms

Back Check

Hydraulic braking device which cushions the opening of a door i.e. to stop the door hitting a wall.

Single Action

Door opens one way only.

Double Action

Door opens both ways.

Hold Open

Door can be held open.

Non Hold Open

Door cannot be held open.

Strength

The unit strength is determined by the door size, weight, external conditions, degree of opening, use and adjustment of unit.

Non Handed

Suitable for either left or right hand doors.

Handed

Either left handed or right handed.

Adjustable Closing Speed

Speed of door closure can be adjusted.

Adjustable Latching Action

Speed of door can be altered for the last stage of door closure.