Cen­tral cylinder system ('Z' system)

A cen­tral cylinder system is the secure solu­tion for private homes, hou­sing estates and owner-occu­pied apart­ments. It con­sists of a random number of different cylinders. The keys of the different cylinders always lock one or more other cylinders, the so-called cen­tral cylinder(s). Cen­tral cylinder sys­tems with a 'technical key' are a frequently used hybrid system. The 'technical key' locks only various cen­tral cylinders and cylinders of technical rooms (cen­tral hea­ting room, elevator machine room, telephone system etc.). It does not lock apart­ment entrance doors. An apart­ment door key also locks main entrance doors, base­ment doors or underground car park doors (cen­tral cylinders).

Features and bene­fits pro­vided by a BKS cen­tral cylinder system type 'Z':

  • Cylinders tested in accor­dance with EN 1303 and DIN 18252
  • Pro­tected BKS pro­file series
  • Master key system admi­ni­s­t­ra­tion with KeyManager software­
  • Master key system plan­ning and orde­ring by means of web-based plat­form 'MKS'

Sui­table cylinder sys­tems

Cen­tral cylinder sys­tems ('Z' sys­tems)
Con­ven­tional sys­temsSeries 31; Series 33 SL
Rever­sible key sys­temsSeries 50; Series 51 SL; Series 46 janus

Elec­tronic sys­tems

SE elec­tronic locking system

Trade fairs

Light + Building

Frankfurt, Germany

18.03. - 23.03.2018

Hall 9.1


Nuremberg, Germany

21.03. - 24.03.2018

Hall 4, stand 201
Bau 2017 - Fassadenlösungen der GU-Gruppe
Bau 2017 - Fassadenlösungen der GU-Gruppe
Bau 2017 - Fenster- und Türlösungen der GU-Gruppe
Bau 2017 - Fenster- und Türlösungen der GU-Gruppe
Language: English
Designation File size Download
Ultimate security:Groundbreaking locking systems 7,2 MB Download
Product programme 6,3 MB Download
Designation File size Download
Performance catalogue, locking cylinders 27,4 MB Download