Shaft copying systems
Safe, precise, robust
- Travel height up to 392 m
- Safety: SIL3 certified
- Dynamic: Travel speed up to 12 m/s
- Precision: Resolution up to 0,5 mm
- Direct: Absolute positioning
Absolute positioning of the elevator car for travel heights up to 392 m.
The contactless absolute measuring system for shaft copying – also called shaft information or positioning system – has an extremely compact, very robust design. In addition to the sensor, which detects the position of the elevator car 100% slip-free, it also includes the appropriate evaluation unit, a so-called Position Supervisor Unit (PSU). The safe system therefore consists of a SIL3-certified sensor and a suitable evaluation unit. This enables elevator and safety functions to be implemented in accordance with EN 81-20/21/50.
Sensors - reliable detection of position and speed values
Kübler offers various sensors for this purpose. The Ants LEB02 is used as a classic shaft copying system for precise positioning of the elevator car. The SIL3-certified Ants LES02 and Ants LES03 sensors can also be combined with various evaluation units from Kübler. The sensors from Kübler are particularly characterized by their compact and robust design.
Evaluation units - safe processing of position and speed values
In addition to sensors for safe position and speed detection, Kübler also offers the corresponding evaluation units.
Safe systems - realization of safety functions
By combining sensor and evaluation unit, safety functions can be implemented in accordance with EN 81-20/21/50. Kübler Safe Systems therefore make a significant contribution to the digitalization of elevator systems. Numerous mechanical components such as limit switches or even the classic overspeed governor can be eliminated. This saves space, time and costs.

Under construction:
All-In-One concept
Safe-System LES03 / PSU03
- Additional safety functions can be implemented
- Integrated triggering of the electromechanical safety gear
- Numerous additional features
- Reduced cabling effort
Saves time and costs
Suitable for the tightest spaces
Reliable and durable
Precise positioning
Reduce total costs
Easy installation - Ants shaft copying systems - english
Installed in the elevator shaft in just a few steps. Your benefits - cost and time savings over the entire length
Realization of elevator and safety functions EN81-20/21/50 - english
Two examples will show how the Ants shaft copying system in the Safe System variant realizes these elevator and safety functions
Portfolio Ants shaft copying systems - english
Absolute and safe positioning of the elevator car up to 392 m. We present you the benefits of the Ants shaft copying systems.We present you the advantages of the Ants shaft copying systems as well as when and where Base, Safe or Safe System variants are used
Concept Study: electronic overspeed governor - english
This Concept Study presents a further evolutionary step in elevator technology: The mechanical overspeed governor can be replaced by SIL3-certified sensors from Kübler.
Predictive Maintenance with Kübler shaft copying systems and encoders - english
Sensors play an essential role in Predictive Maintenace. We show you what the future could look like and which measurement data Kübler provides
Concept Study: Smart Teaching Unit – Easy teaching of the evaluation unit - english
With this innovation, the evaluation unit or shaft copying system is teached in quickly and easily via an intuitive web interface for desktop and mobile devices.