How much does the GROB G550a weigh?

21500 kg, per G550a (grobgroup.com).

What is the X-axis travel of the GROB G550a?

800 mm, per G550a (grobgroup.com).

GROB G550a

The GROB G550a is a 5-axis universal machining center with a horizontally arranged motorized spindle. It has three linear axes (X, Y, Z) and two rotary axes (A and B), which allow 5-sided machining and 5-axis simultaneous interpolation. It is built for milling applications in mechanical engineering, automotive and die/mold work, and can be extended with pallet changers and pallet storage systems for automation.

Source checked8/8 values · 2026-10-26

GROB CNC mill

Travel X

800mm

Travel Y

950mm

Travel Z

1,020mm

Axes

Weight

21,500kg

Specification

1 source

Category	cnc mill
Rapid traverse	60 m/min
Table load	700 kg

Quick answers

How many axes does the GROB G550a have?: 5, per G550a (grobgroup.com).
How much does the GROB G550a weigh?: 21500 kg, per G550a (grobgroup.com).
What is the X-axis travel of the GROB G550a?: 800 mm, per G550a (grobgroup.com).

Study notes

Working travels are 800 mm (X), 950 mm (Y) and 1,020 mm (Z); maximum axis speeds are 60 m/min (X), 42 m/min (Y) and 60 m/min (Z).
Interference diameter is 900 mm.
Positioning accuracy in the X/Y/Z axes is 0.006 mm.
Chip-to-chip time t1 is 4.8 s at 12,000 rpm, according to VDI 2852.
Table diameter is 770 mm.
Total weight is 25,200 kg with pallet changer and 21,500 kg without.
Five motorized spindle versions are offered: HSK-A63 83 Nm at 12,000 rpm, HSK-A63 206 Nm at 16,000 rpm, HSK-A63 47 Nm at 18,000 rpm, HSK-A100 575 Nm at 9,000 rpm, and HSK-A100 340 Nm at 10,000 rpm.
A-axis swivel range is 230 degrees; B-axis swivel range is 360 degrees.
Tool length for the single disk-type tool magazine is 465 mm outside (HSK-A63); for the compact double disk-type tool magazine it is 500 mm outside and 200 mm inside (HSK-A100).
Automation options are a pallet changer, a linear pallet storage system (PSS-L) and a rotary pallet storage system (PSS-R) for up to 13 pallets.
High-pressure cutting fluid systems are available at 23, 5-40 and 10-80 bar; hand-held controller options are SIEMENS or HEIDENHAIN.
A stated example is a steel vise bottom part of 415 x 130 x 115 mm machined with a 9,000 rpm motorized spindle at 65 kW / 575 Nm.