2007 Grob G300
CNC Vertical Machining Centers (VMC)
CNC Vertical Machining Centers (VMC)
Grob G300
2 Grob G300 listings have come through the used market we track: 2 marketplaces, built 2007 where given.
600 mmX-axis travel
770 mmY-axis travel
What the maker publishes about the current Grob G300
GROB lists the G300 as the smallest size in its G-module series of machining centers, a horizontal motorized spindle machine laid out for series production of automotive parts. Working travel is 600 mm in X, 770 mm in Y and 810 mm in Z, with axis speeds of 95, 45 and 100 m/min. Parts up to an interference diameter of 720 mm fit the work area. A chip-to-chip change takes 2.3 s under VDI 2852, and each linear axis positions to 0.006 mm. The table carries 400 kg without a pallet and 340 kg with one. Tilting rotary tables in several versions, a disk-type tool magazine and a scraper conveyor for chips make up the layout. Among the spindle versions listed for the G300 are an HSK-A63 unit at 12,000 rpm and 47 Nm and an HSK-A100 unit with 340 Nm at 6,000 rpm. SIEMENS control is standard and FANUC is an option. Weight is 15,000 kg, or 17,500 kg with a pallet changer.
Source: GROB, October 27, 2026.
What the Grob G300 is used for
GROB aims the G300 at series production for the automotive sector and lays out its G-modules to cut wet or dry in very little floor space.
Source: GROB, October 27, 2026.
Grob G300 specifications
Manufacturer specification. Read from the manufacturer’s published specification and checked against it word for word.
Figures as currently published; an older unit may differ in control generation and options.
Capacity and travels
X-axis travelWorking travels in X-/Y-/Z-axis (mm)
600 mm
Y-axis travelWorking travels in X-/Y-/Z-axis (mm)
770 mm
Z-axis travelWorking travels in X-/Y-/Z-axis (mm)
810 mm
Spindle and speed
Rapid traverseMax. speeds in X-/Y-/Z-axis (m/min)
95/45/100 m/min
Table, turret and tools
Max table loadTable load without/with pallet (kg)
400/340 kgwithout/with pallet
Control
ControlControl systems
SIEMENS (standard)FANUC option
Dimensions and weight
Machine weightTotal weight without/with pallet changer (kg)
15,000/17,500 kgwithout/with pallet changer
Further figures the manufacturer publishes
Interference diameter
720 mm
Chip-to-chip time t 1
2.3 saccording to VDI 2852
Positioning accuracy in X-/Y-/Z-axis
0.006 mm
- manufacturer specification page, fetched October 27, 2026.
What to check on a Grob G300
- Control generation. The manufacturer specifies SIEMENS (standard) for this model.
- Axes and way covers. The manufacturer gives X 600 mm, Y 770 mm and Z 810 mm of travel. Run each axis end to end and check the way covers.
- Rapids and ballscrews. The manufacturer gives a rapid traverse of 95/45/100 m/min. Measure the backlash on each axis.
- Tool-change time. The manufacturer gives a chip-to-chip time of 2.3 s (according to VDI 2852). Time a tool change against that.
- Table. The manufacturer gives a table load of 400/340 kg (without/with pallet). Check the table and its T-slots for damage.
- Rigging and floor. The manufacturer gives a machine weight of 15,000/17,500 kg (without/with pallet changer). Confirm the rigging route and the floor will take that.
Grob G300 control and documentation
- Control SIEMENS (standard) (FANUC option)
GROB says the technical documentation for a GROB machine is reached through its GROB 4 Care parts webshop, which needs an account.
Source: GROB, October 24, 2026.
Grob G300 listing history
Where it was listed
exapro.com
1 listing, 2007
machinetools.com
1 listing
Model years seen
2007.
What Grob G300 listings agree on
X-axis travel
600 mm
Y-axis travel
770 mm
Looking for a Grob G300 for sale?
We have tracked 2 Grob G300 listings on 2 marketplaces (exapro.com and machinetools.com), model year 2007. We buy Grob G300 machines and do not sell them.
Every Grob G300 we have tracked
1 more listing, no year.
The Grob G300 among machining centers and mills
Browse all CNC Vertical Machining Centers (VMC), or see every Grob machine we track.
Models related to the Grob G300
- Grob G350: manufacturer specification page, fetched October 26, 2026.
- Grob G300: manufacturer specification page, fetched October 27, 2026.
Have a Grob G300 to sell?
We are the buyer, not a broker. No listing, no consignment, no waiting for someone else to find a buyer. Quote in 24 to 48 hours, and we can arrange rigging, freight and the pickup.
