Grob G150

The Grob G150 is the entry-level model in Grob-Werke's G-series universal machining center lineup, providing simultaneous 5-axis capability in Grob's distinctive horizontal spindle orientation with a tilting rotary table. Unlike conventional vertical 5-axis machining centers, the G150 uses a horizontal spindle with a swiveling B-axis workpiece carrier, which provides natural chip fall away from the workpiece, superior coolant access, and excellent spindle utilization during complex parts cycles.

Grob's machine architecture places the spindle in a horizontal orientation and uses a combined A/B-axis workpiece carrier table that swivels and rotates the part into position rather than moving the spindle in the rotary axes. This approach provides exceptional rigidity during cutting because the spindle remains in a fixed angular relationship with the workhead, and the entire cutting force reaction path is through rigid structural elements rather than through swivel mechanisms. The G150 accommodates workpieces up to 500 mm in diameter and 450 mm in height.

The G150 is available with spindle speeds up to 18,000 RPM on HSK-A63 taper, with motor options targeting aluminum high-speed machining or universal materials including steel, titanium, and Inconel. The Grob control, based on Siemens Sinumerik 840D sl with Grob's own HMI layer, provides the full 5-axis interpolation cycles, tool center point management, and workpiece probing integration expected at this level.

Although the G150 is Grob's smallest G-series machine, it is by no means a light-duty platform — it shares the same rigorous manufacturing standards and structural design philosophy as the larger G350, G550, and G750 machines that dominate aerospace and automotive tier-1 production worldwide. The G150 is targeted at precision medical, aerospace, and automotive shops that need Grob's capability in a smaller workpiece envelope.