Cam-controlled linear indexing systems

Cam-controlled linear transfer systems (sometimes also referred to as cam conveyors or cam followers) are a proven solution in automated assembly and production technology, especially for fast, synchronised cycle processes with clearly defined processing stations.

Key facts about cam-controlled linear indexing systems in production automation are listed below.

Cam-controlled linear transfer systems can be a good option – but they are not the only one: we analyse, compare and implement the assembly concept that makes the most sense for you, both technically and economically.

Collaborative robot system from Autec

Automatic assembly and packaging of pin headers using a cam-controlled AUTEC linear assembly system

The advantages of cam-controlled linear indexing systems

  • High cycle accuracy and synchronisation
    In cam-controlled linear transfer systems, all movements (feed, stop, return) are defined with mechanical precision via cam discs or cam rollers.
  • Efficient automation
    Automated production using cam-controlled linear transfer systems eliminates the need for manual intervention, reduces labour costs and increases reproducibility.
  • Robust and durable technology
    Mechanical systems require little maintenance – ideal for continuous operation.
  • Low control effort
    Simple integration without complex PLC programming for the feed.
  • Very good repeat accuracy
    Cam-controlled linear indexing systems enable precise positioning of the workpiece carriers at the processing stations.
  • Reliability in high-speed operation
    Very high cycle rates can be achieved thanks to the purely mechanical control system.
  • Compact and space-saving design
    Efficient, especially for ring-shaped or oval systems.

Restrictions when using cam-controlled linear transfer systems

  • Low flexibility
    Cycle movement and stations are fixed and therefore hardly adaptable to product changes.
  • High mechanical adaptation effort
    Changes to the process usually require a mechanical redesign of the cam discs.
  • Time-consuming commissioning for more complex systems
    Mechanical coordination must be very precise in order to ensure smooth operation.
  • No independent station cycle
    All stations run in the same rhythm → no parallelisation or asynchronous processing possible.
  • Limited conveying distance
    Usually limited to shorter transport distances due to the design.
  • Investitionskosten bei Sonderformaten
    Individuelle Kurvenführungen und Mechanik erhöhen die Kosten bei Spezialanwendungen.

Conclusion

Cam-controlled linear indexing systems are particularly suitable for highly stable, serial processes with fixed sequences, for example in the mass production of small parts or assemblies. They offer reliability and speed, but are unsuitable for flexible or modular production concepts, such as those required in Industry 4.0 environments.

Ask the automation professionals at AUTEC for the best assembly concept for your requirements!