Assembly and testing technology

ProMoChange® Linear motor quick-change system

The ProMoChange® quick positioning system allows a significant reduction of non-productive times in the functional units and thus an increase of the system’s productivity. The high dynamic of the linear direct drive motor used makes it possible to measure up to the dynamic of rotary transfer machines along with full flexibility. The repetition accuracy for positioning of workpiece carriers is better by Factor 5 at least in comparison with conventional lifting and positioning equipment for belt drive systems. With respect to the workpiece carrier no very high precision is required, instead of that a workpiece-related offset is provided in every functional unit for the fine positioning. The quick positioning system is compatible with the conventional belt drives and therefore selective retrofitting into existing machines is possible. Especially for small products to be assembled short cycles are often possible in the functional units, which is why an optimization of the non-productive time is even profitable in the range of less than one second. Typically, workpiece carrier sizes from 80mm to 360mm edge length are concerned. Even completely new applications requiring a fully functional positioning axis are possible with the quick positioning system.

ProMoChange® Components

  • Siemens 1FN linear motor
  • SINAMICS drive controller
  • Siemens Engineering Tool Starter
  • SIMATIC S7 T-CPU
  • MTS Sensors position measuring system
  • Guiding system


The concept of our machines and equipment is defined by both your product-dependent specifications and the focus on maximized standardization. In any other case we will gladly discuss with you your individual special solution. Here you may contact our Inside Sales Service.


Head of project management
Karl Aich
Phone: +49 9421 739 - 285
Fax: +49 9421 739 - 6285

Technical Data

Typical workpiece carrier weight: 2kg up to 10kg

Positioning accuracy: approx. ± 0.02 mm

Workpiece carrier changing time: <0.5s (workpiece carrier length 160mm)

Workpiece carrier travel time: <0.3s for 400 mm (workpiece carrier length 160mm)

Max. speed: 2.00 m/s

Max. acceleration: 30 m/s2