gravostar

What is gravostar?

gravostar is a trademark used by the Swiss company SEH Technik GmbH, under which marking and deburring tools are developed and manufactured for integration into CNC machines and robotic cells. The company operates in Oberuzwil, Switzerland, and is particularly focused on process-integrated solutions, where part marking or deburring is performed as part of the actual machining process, without a separate work step.

Gravostar solutions are used in the metalworking industry for automatic marking of cast, forged, and stamped parts, as well as for deburring undefined edges in CNC milling machines, CNC lathes, and robotic cells.

gravostar marking tools in CNC machining

gravostar marking tools are based on micro-percussion, where instead of removing material as in engraving, the tool creates a plastic deformation on the surface using rapid, repeated impacts. The tool has an integrated pulse control that makes the marking pin oscillate at about 300 Hz, creating individual dots that form a continuous and deep marking.

In the machine shop, this means that a part can be marked directly inside a machining center or CNC lathe without spindle rotation. Marking can be programmed as part of the NC program or transferred from a higher-level database, supporting the automatic implementation of Data Matrix codes, serial numbers, and traceability information, for example. The tool compensates for height differences on the surface, making it possible to mark even raw cast surfaces.

gravostar engraflexx deburring tools

gravostar's engraflexx deburring tools are designed for automated deburring of parts with undefined edges. The key feature of these tools is a spring-loaded spindle that is flexible in both lateral and axial directions, allowing it to adapt to the actual shape of the part. This way, deviations between the nominal dimension and the actual geometry are automatically compensated.

In the machine shop, this reduces manual finishing work, improves repeatability, and enables consistent chamfering or radiusing, for example, on the edges of cast iron parts. The deburring force can be adjusted on the tool, allowing for a controlled and documented process as part of CNC machining.

gravostar and process-integrated machining

gravostar emphasizes process reliability and the requirements of three-shift production, where maintenance-free operation and dependability are crucial. The solutions are intended to be integrated as part of the machining process, making separate marking or deburring steps unnecessary in the production flow.

This approach supports quality management in the machine shop, shortens lead times, and reduces part handling. The company is ISO 9001 certified and has been operating in the field since 1999.

gravostar in the machining industry

gravostar tools are used globally in many industries, including automotive, aerospace, and mechanical engineering. For machinists, gravostar primarily means a tool solution that can be integrated into a CNC machine or robotic cell, allowing marking or deburring to be performed in a controlled, repeatable fashion without manual labor.

Summary

gravostar is a brand of SEH Technik GmbH, under which marking and deburring tools are manufactured for integration into CNC machines and robots. The solutions are based on micro-percussion marking and flexible spindle designs, enabling marking and deburring to be carried out as part of the machining process in the machine shop.