CES reversible spanner systems

Patent-protected reversible key systems

All CES reversible key systems are patent-protected and meet the most stringent DIN and EN requirements. The latest WD system stands out thanks to its vertical key geometry, high user-friendliness and technical copy protection provided by undercut technology and active locking elements. Depending on the application, the DIN standard distinguishes between residential and commercial construction.

Advantages of our reversible key systems

Patent protection until 2031 / 2038
Tested and certified in accordance with DIN EN 1303 and DIN 18252
Scan protection provided by specially shaped housing pins
Guide groove for precise torque transmission
A key made of nickel-plated steel
Wide range of colours and finishes
Optional: Additional anti-drill and anti-pull protection BS3/BS4/BZ1/BZ2
Optional: Additional features and certifications

Technical differences at a glance

A comparison of reversible spanners

The CES WD, DW and RHM reversible key systems differ in terms of design, technology and area of application. This comparison will help you choose the right system for residential or commercial construction. Detailed technical specifications and system options are clearly set out in the table below.

Features	WD	DW	RHM
Tested in accordance with DIN EN 1303 / DIN 18252
Patent	by 2031	by 2031	by 2038
Additional locking elements
Use in central locking systems
Use in Master Key systems
Use in Grand Master Key systems
Security card
Nickel-silver key
Special finishes/colors
Commercial project suitability
Residential project suitability
Customer profile
	Go to WD		Go to RHM

Mechanics meets access control

Mechanics and electronics combined

The CES transponder clip

The transponder clip allows CES’s mechanical profile systems to be easily combined with CES’s electronic locking systems and the AccessOne access control system. This creates flexible hybrid solutions that combine mechanical security with electronic management. Existing locking systems can be expanded in stages and adapted to new requirements without any disruption to the system and with maximum planning reliability.

Find out more about the transponder clip

A systematic approach to customer loyalty

CES Partner Programme

Added value for your mechanical engineering business

With the CESpartner Mechanics programme, you can lay the foundations for long-term customer relationships. You’ll benefit from clear structures, targeted support and practical services covering all aspects of mechanical locking solutions. From consultancy and planning right through to implementation, we’ll strengthen your expertise, boost your efficiency and position you as a reliable partner for your customers.

About the CES Partner Program