Electronic Half Cylinder


Modern and flexible


The  electronic half cylinder from Uhlmann & Zacher in a modern stainless steel design replaces a mechanical half cylinder. The locking cylinder can be installed, for example, in key switches for garage doors, padlocks for containers or server cabinet locks. Authorization takes place via transponders, for example cards or fobs.


Safe dismantling and battery change only with authorization


With an authorized transponder, the electronic knob can be separated from the cylinder housing, making it particularly easy to dismantle. Changing the battery and thus removing the cover is only possible with the appropriate authorization.


Energy efficient


The electronic half cylinder is characterized by a long battery life with up to 80,000 openings per battery set.


Transponder technology

MIFARE® (13,56 MHz)

Transponder technology

LEGIC® (13,56 MHz)

Transponder technology

EM/HITAG 125 kHz

OSS Standard Offline

868 MHz Radio

Bluetooth® Low Energy technology

Dust and waterproof according to protection class IP66 and thus protected against powerful water jets.

Intrusion detection system (IDS) - connection possible


  • Different lenghts of profile cylinder available
  • Certified according to DIN EN 15684
  • Little installation effort without drilling, no special tools required
  • Wireless assembly, since it is operated with a battery
  • Battery change and dismantling only with an authorized transponder
  • Long battery life, up to 80,000 openings with just one battery set
  • Permanent engaging (toggle function) without additional power consumption
  • Outdoor version, protection class IP66
  • PVD coating in gold, anthracite, bronze and black
  • Can be integrated with an intrusion detection system
  • Operation via smartphone (in conjunction with Bluetooth® Low Energy)
  • Offline or online operation via radio network
  • Bluetooth® Low Energy possible in conjunction with MIFARE®
  • Transponder technologies MIFARE®, LEGIC® and EM/HITAG
  • Compatible with OSS Standard Offline
  • Different requirements are met depending on the system (Clex prime, Clex private, Clex public)

Modular construction


Thanks to the simple assembly of the universally applicable knob module with Uhlmann & Zacher locking cylinders, quick on-site conversion is possible without any problems. The combination of inidivual components creates a variety of electronic locking units.


Find out more here!


Data sheets
Clex prime CX6126 |
1 MB
Clex private CX2126 |
256 KB
Clex public CX8126 |
1 MB
CX6711 Spring Reset |
772 KB
Flyers & Brochures
Cylinder Brochure |
15 MB


You can find further information in our

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Current information