General
Cylinder length side A	40 mm
Cylinder length side B	45 mm
Compatibility	Clex prime, Clex private, Clex public systems
Product type	Mechanical double cylinder
Side interchangeability

The Clex cylinder housing from Uhlmann & Zacher is a mechanical double cylinder specifically designed for mounting electronic and mechanical knobs of the Clex prime, Clex private, and Clex public systems. It serves as the base for electronic door locking systems and enables flexible adaptation to different requirements through modular construction. The cylinder length is 40 mm on side A and 45 mm on side B, and the housing can also be installed in reverse, simplifying installation on various door configurations.

Applications
The cylinder housing is designed for use in access control systems requiring a combination of mechanical and electronic access control. It is used in buildings requiring flexible and scalable security solutions, such as office buildings, residential complexes, or facilities with different access authorizations. The modular design allows adaptation to changed door thicknesses or switching from single-sided electronic authorization (one electronic and one mechanical knob side) to double-sided electronic authorization (two electronic knobs).

Functions and Equipment in Detail
The housing is designed as a double cylinder, allowing it to be mounted on both sides of the door. The dimensions of 40 mm (side A) and 45 mm (side B) correspond to standard cylinder sizes and enable precise installation. The reversible design of the housing offers flexibility during installation, as the cylinder lengths can be adjusted on both sides according to the door construction. The modular construction allows easy insertion and replacement of knobs, enabling various configurations without replacing the entire cylinder housing.

Technology Explained Simply
The cylinder housing functions as a mechanical carrier for the electronic and mechanical knobs of the Clex systems. It is not electronic itself but serves as a mechanical base onto which electronic components (e.g., electronic knobs) are mounted. The electronic knobs handle access control, while the housing ensures mechanical guidance and stability. The combination of mechanical and electronic components enables flexible use, for example, when switching from purely mechanical to electronic access control or adapting to different door thicknesses.

Compatibility and Accessories
The cylinder housing is compatible with electronic and mechanical knobs of the Clex prime, Clex private, and Clex public systems. Suitable accessories include, for example, the U&Z Mechanical Knob CX6712 with 29.0 mm engagement, as well as the U&Z Private CX2120 knob modules for indoor and outdoor use (IP66). Combining these knobs enables the realization of various access concepts, depending on requirements for security, functionality, and environmental conditions.

Installation and Mounting
Installation is carried out in the usual manner for door cylinders, with the reversible design of the housing enabling adaptation to different door constructions. The cylinder lengths of 40 mm (side A) and 45 mm (side B) correspond to common standards and facilitate integration into existing door systems. The modular design allows for later adjustment of the knobs without replacing the housing, simplifying maintenance and modernization.

single-sided electronic authorization, double-sided electronic authorization, mechanical double cylinder, Clex systems, modular construction, reversible design

Operational Advantages
The modular construction of the cylinder housing offers high operational flexibility. Changes in door thickness or switching access control from single-sided electronic to double-sided electronic can be carried out without replacing the housing. This reduces installation and maintenance costs and increases the system's lifespan. The reversible design simplifies installation and adapts to different door configurations, expanding the range of applications.