GROB G750

The GROB G750 is a 5-axis universal machining center for milling large parts, with three linear axes (X/Y/Z) and two rotary axes on a tilting rotary table, giving 5-sided machining and 5-axis simultaneous interpolation. The spindle is mounted horizontally so chips fall clear and the Z travel can be long. The standard motorized spindle is HSK-A63 with 83 Nm at 12,000 rpm, and several other HSK-A63 and HSK-A100 spindle versions are offered.

Source checked11/11 values · 2026-10-26GROBCNC mill
X 1,000Y 1,100Z 1,175SPINDLE 12,000 rpmHSK-A63ALL DIMENSIONS mmG750 · TRAVEL ENVELOPEIsometric · X, Y, Z to scale
Travel X
1,000mm
Travel Y
1,100mm
Travel Z
1,175mm
Spindle max
12,000rpm
Spindle torque
83N·m

Specification

1 source
Categorycnc mill
Axes5
Weight34,500 kg
Spindle taperHSK-A63
Rapid traverse75 m/min
Table load1,500 kg

Quick answers

How many axes does the GROB G750 have?
5, per Universal machining center G750 (grobgroup.com).
How much does the GROB G750 weigh?
34500 kg, per Universal machining center G750 (grobgroup.com).
What is the maximum spindle speed of the GROB G750?
12000 rpm, per Universal machining center G750 (grobgroup.com).
What is the X-axis travel of the GROB G750?
1000 mm, per Universal machining center G750 (grobgroup.com).

Study notes

  • Travels X/Y/Z are 1,000/1,100/1,175 mm; maximum axis speeds are 60/50/75 m/min.
  • Table diameter is 950 mm. Table load is given as 1,000 kg with pallet / 1,500 kg without pallet.
  • Total weight is 34,500 kg without pallet changer and 40,500 kg with pallet changer.
  • Positioning accuracy is 0.006 mm in X/Y/Z. Chip-to-chip time is 3.3 s according to VDI 2852.
  • Interference diameter is 1,280 mm.
  • Swivel range is 230 degrees in the A-axis and 360 degrees in the B-axis; the tilting rotary table uses torque motors, and A-axis-only and B-axis-only versions are offered.
  • Alternative motorized spindles: HSK-A63 206 Nm/16,000 rpm, 47 Nm/18,000 rpm, 47 Nm/21,000 rpm, 63 Nm/30,000 rpm; HSK-A100 265 Nm/13,000 rpm, 575 Nm/9,000 rpm, 340 Nm/10,000 rpm, 340 Nm/6,000 rpm, 344 Nm/6,000 rpm.
  • Tool magazine options are double disk-type, three disk and additional magazine; tool length for the double disk-type magazine is 400/650 mm (front/back) for HSK-A63.
  • The energy efficiency package is stated for machines with SIEMENS control system; no specific controller model is named in the document.
  • Software options include interpolation turning PLUS and a kinematic measurement inspection equipment set.

Safety

  • The pallet changer has an integrated seating check system and flushing of the zero point clamping system to verify pallet seating during the pallet change operation.
  • GROB Chip-in-Spindle Detection System (SiS) detects tool clamping faults caused by chips between the plain surface and the spindle nose from 10 μm.
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