Safety and reliability are the core features of Switch locking systems. By keeping a firm grip on the point blades, they ensure problem-free railway operations and contribute to cost efficiency in the maintenance and servicing area.
In rail and switch technology, the claw log devices is of crucial importance when it comes to the safety and reliability of rail traffic. As an integral component of points, they enable trains to switch safely from one track to another. Their main task is to fix the moving parts of a point in their intended end position.
This ensures that trains can roll over the point without any issues. The robust material properties of the switch lock and a firm anchoring also prevent external forces caused by train traffic or environmental influences from unintentionally changing the switch position. The modern design of our clamp locks guarantees a long service life and ensures that they will function reliably over a long period of time and require little maintenance. This not only contributes to high availability of the rail network & infrastructure, but also significantly reduces operating costs.
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We would be pleased to assist you personally with any concerns you may have. We are available Monday-Friday from 9 am to 4 pm, and you can contact us either by phone, email or via our contact form.
Yes, CDP Railsystems has developed its own training programme especially for the EVZ claw log devices. We offer this training to customers directly on site. During this training programme, we not only provide employees with the expert knowledge they need regarding the design and functioning of our claw log devices. Correct installation in the signal box is also trained in a practical exercise. At the end of the training course, all participants will have the necessary experience to avoid errors during the installation process and maintenance operations in the future.
The training program for low-maintenance turnout locks is divided into a theoretical and a practical part, each lasting approx. 2-3 hours. In the theoretical part, we provide fundamental expert knowledge about the structure and functioning of the claw log device as well as necessary servicing measures. In the practical part, we then provide step-by-step training on how to properly assemble the stock rail and switch rail. All participants will receive a certificate at the end of the programme by request.
The standardised lock for switch rollers can be assembled and adjusted very quickly compared to other locking systems. The EVZ was specially developed by CDP Railsystems on behalf of Deutsche Bahn AG and has been part of the standard interlocking system within the DB AG network since 2016. It allows us to guarantee a very high degree of availability regarding our locks, which also makes it much easier to replace wearing parts. The EVZ and EVH have approval from the Federal Railway Authority (Eisenbahn-Bundesamt, or EBA).
The following information is relevant for the correct design of a turnout lock – e.g. clamp lock turnout:
There are various types of switch fasteners, such as clip fasteners, slide fasteners, clamp fasteners or spring latch fasteners – each with specific properties.
If you have any further questions regarding the design of a turnout lock, you can consult our contact persons at any time or read our blog.
With the standard EVZ, the values for the switch impact and the overlap are predefined by the selected lock type. Manual adjustment is not possible in this instance. However, it is different with the EVZ with Unibar, which was developed and patented by CDP Railsystems. Both values can be set manually in this case.
All the tools required to install a turnout lock are specified in our instructions. However, CDP Railsystems has developed a special EVZ toolkit so that you are optimally prepared for every installation in future without having to search for the right tool beforehand. It contains a complete tool set that can be used for all types of locks. The EVZ Toolkit can be ordered from us at any time upon request.
There are different types of turnout locks, which are selected depending on the type of turnout and operating conditions. These include, among others:
Soft tip closure – classic locking mechanism at the tip of the tongue
Soft clamp closure – tongue is pressed against the cheek piece by the clamp
Latch lock switch – mechanical locking via latch system
Other variants such as slide fasteners, clamp fasteners or spring latch fasteners
The choice of the right turnout lock depends, among other things, on the travel, rail profile and drive type. Further information can be found in the blog.
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