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Precision safety for commercial construction

TDU locking system for high-end commercial construction

Efficient locking systems for complex and modern construction projects
TDU stands for the highest precision and reliable security in high-end commercial construction. The patented system meets the stringent requirements of DIN and VdS standards and, thanks to undercuts on both sides, offers a three-dimensional key profile with strong anti-duplication protection, which is significantly superior to conventional 2D methods. Optionally, a swivel-lever locking mechanism provides a dual security check and an additional level of protection.

Advantages of the TDU Conventional System

  • Patent protection until 2031
  • Tested and certified in accordance with DIN EN 1303 and DIN 18252
  • 5-/6-pin profile system
  • Up to 5 side-mounted control elements on a single level
  • Guide groove for precise torque transmission
  • Nickel-silver spanner with reinforced handle for optimum torque
  • Wide range of colours and finishes
  • Optional: Additional drill and pull protection BS3/BS4/BZ1/BZ2
  • Optional: Additional features and certifications

Technical details

The technical specifications of TDU highlight its flexibility and reliability in planning. Its functions, designs, protection classes and materials are consistently tailored to the professional requirements of commercial construction.

Dimensions and materials

Dimensions

Our cylinders are available in a wide range of overall lengths. The overall length of our 5-pin systems starts at 27.5 mm and that of our 6-pin systems at 31.5 mm per mounting side. The overall length can be extended in 5 mm increments on each side.

Materials

Our profile cylinders are made from high-quality brass, offering high strength, corrosion resistance and a long service life. The corresponding keys are made from robust nickel silver and have a key thickness of 3.5 mm. This ensures particularly high dimensional stability and reduces wear and tear during daily use.

Multi-stage locking technology in the TDU system

An overview of special functions

Active query in the key profile

The TDU system utilises several interlocking security elements to provide enhanced protection against tampering. Spring-loaded swivel levers provide a dual security check along the long side of the key profile and are effective against bump picking. This is complemented by lateral coding with variable control pins, as well as a spring-loaded drill and pull protection made from hardened special steel.

Spring-loaded swivel levers

Two spring-loaded pivot levers are integrated into one side of the lock cylinder. They perform a dual security check along the long side of the key profile, prevent the cylinder from being turned through and effectively enhance protection against bump picking as well.

Lateral coding

On the side of the cylinder core opposite the swivel levers, up to five horizontally mounted, versatile control pins are integrated. This lateral coding provides an additional safety-related check and highlights the technical safety benefits of the TDU system.

Spring-loaded drill and pull-out protection

A spring-loaded locking element made of hardened special steel, housed within the casing, complements the lock cylinder. It performs a contour-based security check on the key and increases resistance to drilling and pulling attempts, acting as an additional effective locking mechanism.

Spring-loaded swivel levers

Two spring-loaded pivot levers are integrated into one side of the lock cylinder. They perform a dual security check along the long side of the key profile, prevent the cylinder from being turned through and effectively enhance protection against bump picking as well.

Lateral coding

On the side of the cylinder core opposite the swivel levers, up to five horizontally mounted, versatile control pins are integrated. This lateral coding provides an additional safety-related check and highlights the technical safety benefits of the TDU system.

Spring-loaded drill and pull-out protection

A spring-loaded locking element made of hardened special steel, housed within the casing, complements the lock cylinder. It performs a contour-based security check on the key and increases resistance to drilling and pulling attempts, acting as an additional effective locking mechanism.

Unique. Distinctive. CES.

Personalise cylinders and keys

Easier than ever before

Personalise your locking system and turn it into your calling card. Whether it’s a custom-designed key or a personalised cylinder – CES offers specialist partners a wide range of options for visual and functional customisation. This results in solutions with high recognition value that combine security, brand identity and professionalism, and clearly stand out from standard solutions.

Mechanics meets access control

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 organisation. Existing locking systems can be expanded in stages and adapted to new requirements without any disruption to the system and with maximum planning reliability.

Planning an investment in Excel

Would you prefer to plan using Excel and then upload it to the online shop? 

Other systems in the CES portfolio
Haven’t found the right range of profiles?
We’ll find the best solution for you

Should this profile system not fully meet your requirements, there are other lock cylinder systems available from the CES range. Depending on the security level, convenience features and intended use, we will help you choose the ideal solution – one that is reliable, practical and tailored to your residential or commercial construction project.