Dorma - Standard spindles for BTS 75 V, BTS 80, and BTS 84

Net: £28.47

Incl. VAT: £34.16

Taxes included.

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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.
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DORMA Floor Spring Spindles – Standard & Extended for BTS75V / BTS80 / BTS84

The DORMA Floor Spring Spindles are interchangeable spindle inserts designed for compatible BTS75V, BTS80 and BTS84 concealed floor springs. The spindle connects the floor spring mechanism to the door's bottom strap or fitting, transferring movement between the door and the floor spring.

Available in a standard version and extended heights of 5mm, 7.5mm, 10mm and 12.5mm, these replacement spindles allow installers to select the correct height to suit the door construction, floor finish and clearance requirements. Choose the required size from the product options.

Key Features & Benefits

Compatible DORMA BTS Models
Designed for the compatible BTS75V, BTS80 and BTS84 floor spring range.

Standard and Extended Options
Choose from the standard spindle or +5mm, +7.5mm, +10mm and +12.5mm extensions.

Correct Door-to-Floor Spring Connection
Provides the mechanical connection between the floor spring and the corresponding door fitting.

Allows for Floor Clearance
Extended versions can accommodate applications where thresholds, floor coverings or door geometry require additional spindle height.

Interchangeable Replacement Component
Useful for replacing a worn or incorrect spindle without replacing the complete floor spring.

Individual Size Selection
Each option is supplied as the selected spindle insert, rather than a complete set of all lengths.

Technical Specifications

Product Type: Floor spring spindle insert

Manufacturer: dormakaba / DORMA

Compatibility: BTS75V / BTS80 / BTS84

Available Sizes: Standard, +5mm, +7.5mm, +10mm, +12.5mm

Manufacturer References: Standard 45200401; +5mm 45200402; +7.5mm 45200403; +10mm 45200404; +12.5mm 45200419

Function: Mechanical connection between floor spring and bottom door fitting

Supply: One spindle insert in the selected size

Installation: Into compatible concealed floor spring spindle socket

The DORMA Standard and Extended Spindle Inserts provide an accurate replacement and installation solution for compatible BTS floor springs, with selectable heights to suit different door and floor clearances.

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FAQ's

Which DORMA floor springs do these spindles fit?

They are designed for compatible BTS75V, BTS80 and BTS84 floor springs. Check the floor spring model and existing spindle profile before ordering.

What sizes can I choose from?

You can select the standard spindle or an extended spindle of +5mm, +7.5mm, +10mm or +12.5mm.

How do I know which spindle height I need?

Check the existing spindle and the required clearance between the installed floor spring and the underside of the door fitting. Thresholds and floor coverings can affect the size required.

Does +10mm mean the spindle is 10mm long?

No. +10mm means the spindle is extended by 10mm compared with the standard spindle height.

Do I receive all five spindle sizes?

No. The product is sold as an individual spindle insert in the size selected from the options.