4-axis-FSW gantry systems of the DSM series

Friction Stir Welding with perfect results

Seal welding for different industries and challenges: The compact 4-axis gantry machines of the DSM series (DSM = Dynamic Stirring Machine) was developed by Grenzebach especially for the requirements of the FSW process. The machine design is focused on a dynamic and precise process control as well as an intuitive control and operating concept.


4-axes gantry system is designed for high axis dynamics and precise line guidance. The HYDROPOL® machine bed: Specially designed for very high static rigidity, low dynamic flexibility and deformation in steel-covered polymer concrete.

  • The integrated C-axis allows for rotation of the welding head by +/- 720 °

  • Far higher dynamics for complex welding paths with narrow radii

  • Operational range: DSM1400 1.400  x  1.000  x  400  mm or operational range: DSM2400 1.400  x  2.400  x  400  mm
  • More sizes upon request

Welding with low-distortion at the highest level for perfect results - fast, dynamic, precise.

  • Gantry traversing speed up to 13 m/min


  • Welding speed up to 3 m/min


  • Accuracy during the process +/-0.1mm

Machine and process control with IndraMotion

With the MTX control by Bosch Rexroth, Grenzebach relies on well proven CNC control technology and combines it with innovative FSW process control. Adapted software interfaces allow for an easy connection with a higher-level control system. The machine and process programming is facilitated with the FSW CAD/CAM programming software.



Everything under control

  • All parameters and machine data at a glance via touch panel
  • Handheld controller for manual control of the axes
  • The large windshield allows for complete control of the welding process
  • Optional live image camera
  • Lifting heavy assemblies and fixtures with a crane or robot from the machine
  • Protected access to the entire working area of the machine
  • Through maintenance access points on the backside, controller hardware and central power supply can be accessed at all times

Modules for different customer needs

Friction stir welding at the height of time: The 4-axis FSW gantry systems of the DSM series offer numerous additional features to fully meet individual requirements:


  • Complete recording and output of all process- and quality-relevant machine data

  • Configurable, automated tool changing station for quick tool change

  • Sensors for calibrating fixtures and components

  • Media supply for DSM shuttle systems (pneumatic, hydraulic, electric)



Workpiece supply systems for enhanced productivity

In terms of cycle time, the fast loading and unloading of workpieces is just as important as the dynamics and speed of the welding machine. Modular, expandable, automatic feeding systems for simultaneous welding and loading and unloading of work pieces outside of the machine. The loading and unloading of components can be done manually by the operator with the help of a manipulator or an indoor crane, or fully automated.