ABOUT THIS FLOOR SPRING SYSTEM

The BTS75 Floor Spring Set – Non Hold Open (NHO) is a concealed floor mounted door closer system designed for double action pivot doors in commercial environments.

This system is installed inside the floor beneath the door, providing a clean architectural finish while delivering smooth and controlled door movement in both directions.

The Dormakaba BTS75 is a reliable and widely used commercial floor spring, suitable for aluminium, glass and timber doors in offices, retail spaces and shopfronts.

This version is the Non Hold Open (NHO) configuration, meaning the door always returns to the closed position automatically.

This unit is supplied as a complete system, including the floor spring and pivot hardware.

KEY FEATURES

Brand: Dormakaba

Model: BTS75

SKU: BTS75 Floor Spring Set

Function: Non Hold Open (NHO)

Door Closer Type: Floor Spring System

Mechanism: Cam Action Hydraulic

Operation: Double Action (Opens Both Directions)

EN Rating: EN1–4 (Adjustable)

Maximum Door Width: 1100mm

Maximum Door Weight: Up to 120kg

Installation: Floor Mounted (Concealed)

Application: Commercial Doors

HOLD OPEN OR NON HOLD OPEN

This product is the Non Hold Open (NHO) version.

Hold Open (HO)
Allows the door to remain open at approximately 90°.
Common in retail stores and public entrances.

Non Hold Open (NHO)
The door always returns to the closed position automatically.
Typically required for offices and controlled access doors.

WHAT IS INCLUDED IN THIS SYSTEM?

This is a complete floor spring system, not just a mechanism.

Included:

• BTS75 floor spring (EN1–4 adjustable)
• Top centre
• Bottom strap
• Spindle and fixing components

This ensures full compatibility and correct installation.

WHAT IS A FLOOR SPRING SYSTEM?

A floor spring system is installed inside the floor beneath the door, allowing:

• Smooth controlled closing
• Double action movement (both directions)
• Fully concealed installation

This makes it ideal for modern aluminium and glass doors.

SUITABLE FOR

• Aluminium entrance doors
• Glass shopfront doors
• Timber pivot doors
• Office buildings
• Retail stores

Door Materials

• Aluminium doors
• Glass doors
• Timber doors

HOW TO CHOOSE THE CORRECT FLOOR SPRING

Floor springs are selected based on door weight and size:

Up to 120kg → BTS75 EN1–4
120–200kg → BTS80 EN4
200kg+ → BTS80 EN6

👉 BTS75 is ideal for standard commercial doors

INSTALLATION INFORMATION

This system is installed:

• Inside the floor (cement box)
• With top and bottom pivot points

Requires:

• Floor pocket preparation
• Accurate door alignment
• Correct spindle positioning

Professional installation is strongly recommended.

WHAT'S INCLUDED

• BTS75 floor spring
• Top centre
• Bottom strap
• Fixing components
• Installation instructions

FLOOR SPRING QUICK SELECTION GUIDE

NEED HELP CHOOSING A FLOOR SPRING?

Not sure which system you need?

Send us your door size, weight or a photo, and we will recommend the correct setup.

If you are unsure which product is suitable, please contact The Stickman Store and we will gladly assist.

Email: hello@thestickman.co.za
Call / WhatsApp: 082 508 7708