The BTS 84 is a double-action floor spring which has been specially developed for the aluminum and toughened glass door industries. The BTS 84 has many of the features of the other Dorma BTS closers with the addition of reduced depth and an array of accessories designed for the aluminum door fabricator and toughened glass door manufacturer.


  • Special shallow design
  • Interchangeable spindles
  • Non Hold-open
  • Door weights to 100kg
  • Easy installation
  • For double-action doors
SKU DORM9408110000222_
Brand Dormakaba