BTS 80 System


Floor spring system for single- and double-leaf doors

As a universal floor spring, the BTS 80 has been designed to meet the requirements of doors of all types. With its many individually combinable extras, it is able to satisfy almost every application requirement. Once installed below floor level, the mechanism is almost completely concealed from view.

Certified manufacture to ISO 9001.

Product features
  • For single & double action doors
  • Concealed assembly
  • Three model variants
  • Suitable for doors up to 300 kg
Universal application

Whether standard, narrow or wide, whether LH, RH, or single or double action – the DORMA BTS 80 floor spring is designed for all types of doors. A comprehensive program of accessories ensures that it can be used successfully with a wide variety of door constructions and floor coverings.

Three model variants

The BTS 80 system with its three model variants BTS 80 F (for fire and smoke check doors), BTS 80 EMB (with electrohydraulic hold-open), and BTS 80 FLB (with free-swing function), plus the wide range of accessories available, offers effective adaptability to various door designs and -functions.

Benefits for the trade/distributor
  • Reduced stocking requirements thanks to separate, interchangeable spindles
  • Streamlined product range offering all key functions
Benefits for the installer/fabricator
  • Suitable for installation with LH or RH single- and double-action doors
  • Interchangeable spindles enable easy adaptation to structural conditions – even when retrofitted
Benefits for the architect/specifier
  • Concealed installation for maximum visual elegance
  • All essential functions provided
  • Proven, robust design capable of withstanding leaf weights of up to 300 kg
Benefits for the user
  • Constant, temperature independent closing cycle.
  • Highly efficient mechanism gives maximum user convenience.
Product Desc Size Date Lang
Technical Leaflet [2]
BTS 80-75V Technical leaflet PDF
512.67 KB
11.2011 EN
BTS 80 System Technical leaflet PDF
812.79 KB
10.2011 EN
Instructions/Manuals [5]
BTS 80 BTS 80 F Mounting Instruction PDF
1.44 MB
08.2007 INT
BTS 80 BTS 80 Mounting Instruction PDF
5.86 MB
08.2007 INT
BTS 80 BTS 80 EMB Mounting Instruction PDF
1.85 MB
08.2007 INT
BTS 80 BTS 80 FLB Mounting Instruction PDF
2.42 MB
08.2007 INT
BTS 80 Accessories BTS 80 Accessories Mounting Instruction PDF
97.78 KB
11.2010 INT