GROB G350a

The GROB G350a is a 5-axis universal machining center with three linear axes and two rotary axes. It performs 5-sided machining and 5-axis simultaneous interpolation with a horizontal motorized spindle. Working travels are 600 mm in X, 770 mm in Y and 805 mm in Z.

Source checked13/13 values · 2026-10-26GROBCNC mill
X 600Y 770Z 805SPINDLE 12,000 rpm52 kWHSK-A63ALL DIMENSIONS mmG350a · TRAVEL ENVELOPEIsometric · X, Y, Z to scale
Travel X
600mm
Travel Y
770mm
Travel Z
805mm
Spindle max
12,000rpm
Spindle power
52kW

Specification

1 source
Categorycnc mill
Axes5
Weight15,100 kg
Spindle taperHSK-A63
Rapid traverse60 m/min
Table load400 kg
Spindle torque83 N·m
Max workpiece diameter720 mm

Quick answers

How many axes does the GROB G350a have?
5, per G350a (grobgroup.com).
How much does the GROB G350a weigh?
15100 kg, per G350a (grobgroup.com).
What is the maximum spindle speed of the GROB G350a?
12000 rpm, per G350a (grobgroup.com).
What is the X-axis travel of the GROB G350a?
600 mm, per G350a (grobgroup.com).

Study notes

  • Chip-to-chip time t1 is 4.5 s per VDI 2852 at 12,000 rpm.
  • Positioning accuracy is 0.006 mm in X/Y/Z.
  • Table diameter is 570 mm.
  • Total weight with pallet changer is 16,600 kg.
  • Optional spindles are HSK-A63 with 206 Nm at 16,000 rpm and 47 Nm at 18,000 rpm.
  • Tool length with single disk-type magazine is 365 mm outside for HSK-A63; compact double disk-type magazine gives 365 mm outside and 200 mm inside.
  • Three linear and two rotary axes provide 5-sided machining and 5-axis simultaneous interpolation.
  • Automation options include rotary pallet storage system PSS-R for up to 15 pallets, part/pallet clamping system, and pallet changer.
  • Option packages include tool cleaning, electromechanical tool breakage detection, laser measurement for milling tools, tool coding, touch probe, machine status light, 3D model, and SIEMENS or HEIDENHAIN hand-held controller.
  • Example output carrier uses raw material Ø174x36 mm in C45 at 12,000 rpm and 52 kW/83 Nm.

Safety

  • Table load with pallet is limited to 340 kg.
  • A-axis swivel range is 230° and B-axis swivel range is 360°.
  • Automatic work area door is listed in the basic machine option package.
  • Decentralized work area extraction system is listed in the basic machine option package.
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