# GROB G150

Hardware · `G150` · verification: source checked

The GROB G150 is a 5-axis universal machining center with three linear axes (X, Y, Z) and two rotary axes (A and B) and a horizontal spindle position. It performs 5-sided machining and 5-axis simultaneous interpolation on complex parts, with working travels of 450 mm in X, 670 mm in Y and 665 mm in Z. Direct, absolute position encoders in all axes support a positioning accuracy of 0.006 mm.

## Specification

| Property | Value |
|---|---|
| Category | cnc mill |
| Axes | 5 |
| Travel X | 450 mm |
| Travel Y | 670 mm |
| Travel Z | 665 mm |
| Spindle taper | HSK-E40 / HSK-A63 |
| Rapid traverse | 60 m/min |
| Screen size | 24 in |

## Connected

- Manufacturer: [GROB](https://machineschema.com/manufacturer/grob.md)

## Study notes

- Positioning accuracy is 0.006 mm in X, Y and Z; all axes use direct, absolute position encoders.
- Axis arrangement: three linear axes and two rotary axes (A and B) allow 5-sided machining and 5-axis simultaneous interpolation.
- Max. speeds are 50 m/min in X, 40 m/min in Y and 60 m/min in Z.
- Interference diameter is 580 mm.
- Table diameter is 380 mm; table load is 250 kg without pallet and 220 kg with pallet.
- Total machine weight is 13,400 kg without pallet changer and 15,400 kg with pallet changer.
- Chip-to-chip time t1 is 2.6 s according to VDI 2852, relative to spindle speed.
- Motorized spindle options: HSK-E40 17.4 Nm / 42,000 rpm; HSK-A63 82.8 Nm / 12,000 rpm; HSK-A63 206 Nm / 16,000 rpm; HSK-A63 46.6 Nm / 21,000 rpm; HSK-A63 63 Nm / 30,000 rpm.
- Tool length for the single disk-type tool magazine is 265 mm (HSK-E40 / HSK-A63); single, double and triple disk-type magazines are offered.
- A-axis swivel range is 230 degrees; torque motors drive the A- and B-axes, and the Y-axis uses two symmetrically arranged ball screws with weight compensation.
- GROB4Pilot control panel: multi-touch display, 3D spacemouse, trackball, CAD/CAM programming at the machine and access to the GROB-NET4Industry platform. An energy efficiency package is offered for machines with SIEMENS control system.
- GROB Spindle Diagnostics (GSD) monitors motorized spindle condition; the Chip-in-Spindle Detection System (SiS) detects tool clamping faults caused by chips between the plain surface and spindle nose from 10 micrometres.

## Sources

1. [Universal machining center G150](https://www.grobgroup.com/en/products/product-range/universal-machining-centers/milling-centers/g150/) (accessed 2026-10-26)

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