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Fritz Kübler GmbH

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Shaft copying systems

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.

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

Shaft copying systems

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.
Shaft copying systems /  Elevator Landing system Ants Base: Absolute position acquisition, 100% slip-free, Extremely robust and compact, Easy installation, Contactless measuring principle, Various interfaces
Absolute position detection
  • 100 % slip-free
  • Extremely robust and compact
  • Easy installation
  • Contactless measuring principle
  • Different interfaces
Schachtkopiersystem Ants Safe: SIL3-zertifiziert, Absolute Positionserfassung, 100 % schlupffrei, Extrem robust und kompakt, einfache Installation, Berührungsloses Messprinzip
Safe position detection with Dual CAN
  • 100 % slip-free
  • Extremely robust and compact
  • Absolute position detection
Shaft copying systems / Elevator Landing system  Ants Safe: SIL3-certified, Absolute position acquisition, 100% slip-free, Extremely robust and compact, Easy installation, Contactless measuring principle
Safe position detection
  • Absolute position detection
  • 100 % slip-free
  • Extremely robust and compact
  • Combinable with evaluation unit PSU02 to realize elevator and safety functions
Shaft copying system Ants Safe: SIL3-certified, Absolute position detection, 100 % slip-free, Extremely robust and compact, Easy installation, Non-contact measuring principle
Safe position and speed detection
  • 100% slip-free
  • Easy teach-in of the rated speed
  • Electronic overspeed governor in combination with Safe Gear Trigger SGT02
  • Expandable with evaluation unit PSU02

Mounting kit - simple and reliable mounting


Maximum system availability with maximum simplicity. Whether standard or backpack elevators, we have the right installation concept for our sensors for every application. Quick, easy and safe - Plug & Drive saves time and money.

Mounting-Kit Base
Mounting-Kit Base
  • Can be combined with Ants LEB02
  • Maximum simplicity
  • Patented fastening technology
  • Different versions
Shaft copying system Ants Safe: SIL3-certified, Absolute position detection, 100 % slip-free, Extremely robust and compact, Easy installation, Non-contact measuring principle
Mounting-Kit Safe
  • Maximum security with maximum simplicity
  • Can be combined with Ants LES02, LES02D and LES03
  • Patented fastening technology
  • Optionally with belt presence switch

Evaluation units - reliable processing of position and speed data


In addition to SIL3-certified sensors for safe position and speed detection, Kübler also offers the appropriate SIL3-certified evaluation units for implementing elevator and safety functions in accordance with EN 81-20/21/50
Implementation of elevator and safety functions with intelligent safety gear management Available from January 2026
Implementation of elevator and safety functions with intelligent safety gear management
  • (UCM, limit switch, deceleration control, overspeed, ...)
  • Monitoring, triggering and resetting of electromechanical safety gears
  • Can be combined with Sensor Ants LES03
Electronic overspeed governor with intelligent catch management Available from January 2026
Electronic overspeed governor with intelligent catch management
  • Monitoring, triggering and resetting of electromechanical safety gears
  • Optionally with emergency limit switch and delay control
  • Can be combined with Sensor Ants LES03
Realization of safety functions
Realization of safety functions
  • Opening the safety circuit in case of an error
  • Realization of elevator and safety functions according to EN 81-20/21/50 (without triggering of safety gear)
  • Simplest start-up thanks to Smart Teaching
  • Combinable with Sensor LES02 or Sensor LES03 + SGT02
Triggering and monitoring the safety gears
Triggering and monitoring the safety gears
  • Safe processing of position and speed data
  • Electronic overspeed governor in combination with LES03 

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.
Elevator and safety functions with intelligent safety gear management Available from January 2026

Elevator and safety functions with intelligent safety gear management

Electronic speed limiter with intelligent safety gear management Available from January 2026

Electronic speed limiter with intelligent safety gear management

Elevator and safety functions intelligent safety gear management Available from January 2026

Elevator and safety functions intelligent safety gear management

Shaft copying systems / Elevator Landing system  Safe System: SIL3-certified sensors with suitable evaluation unit or position supervisor unit for implementing elevator and safety functions.
Safety functions according to
EN 81-20/21/50
  • Digitization of elevator systems
  • Reduced number of mechanical components
  • Minimization of installation and maintenance times
  • Simplest start-up thanks to Smart Teaching
Shaft copying system Safe System: SIL3-certified sensor technology with suitable evaluation unit or Position Supervisor Unit for the realization of elevator and safety functions.
Electronic overspeed governor
  • Overspeed monitoring
  • Triggering of the electromechanical safety gear
  • Status monitoring and resetting of the safety gear
  • Shield mode for the establishment of refuge spaces
Shaft copying system Safe System: SIL3-certified sensor technology with suitable evaluation unit or Position Supervisor Unit for the realization of elevator and safety functions.
Safety functions with electronic overspeed governor
  • Digitization of elevator systems
  • Elimination of numerous mechanical components
  • Triggering of the electromechanical safety gear
  • Shield mode for the establishment of refuge spaces

VIDEOS


YouTube Video Shaft copying systems

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

YouTube Video Shaft copying systems

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

YouTube Video Shaft copying systems

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

YouTube Video Shaft copying systems

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.

YouTube Video Shaft copying systems

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

DOWNLOADS



07.10.2025
∼ 2.87 MB
Brochures, Shaft copying systems

Safe shaft copying systems


20.05.2025
∼ 15.054 MB
Catalogs

Short form Catalog 2025/2026


07.10.2025
∼ 2.978 MB
Brochures, Encoders

Encoders for elevator motors