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[Translate to en:] 4-Achs-Maschine von GROB

G440 | G640 | G840

4-axis universal machine series
The 4-axis universal machining centers G440, G640 and G840 offer our customers a heavy-duty machine series, which at the same time guarantees robust and also optimal, dynamic processes.
High productivity, reliable components and a unique loadability characterize the 4-axis machine series. Thanks to extensive configuration options, our machining centers can be perfectly matched to the requirements of your production.
Mechanical engineering
Energy technology
Die and Mold Industries

Are you interested in our 4-axis machine series?

We would be happy to make an individual offer for you! 

Technical data

Working travels: 800/800/800
in X-/Y-/Z-axis (mm)


Max. speeds (max.): 70/60/60
in X-/Y-/Z-axis (m/min)


Interference diameter: 800


Pallet size: 500 x 500


Working travels: 1,050/800/1,050
in X-/Y-/Z-axis (mm)


Max. speeds (max.): 70/60/60
in X-/Y-/Z-Achse (m/min)


Interference diameter: 1,050


Pallet size: 630 x 630 


Working travels: 1,400/1,200/1,400
in X-/Y-/Z-axis (mm)


Max. speeds (max.): 50/50/50
in X-/Y-/Z-Achse (m/min)


Interference diameter: 1,400


Pallet size: 800 x 800 

Your advantage at a glance
checkboxHigh productivity
checkboxOptimized availability
checkboxMaximum flexibility with weight loading of the pallet changer
checkboxFlexible applications
checkboxMaximum stability for the greatest volume machining
checkboxOptimized access
checkboxRound-the-clock service
Unique machine concept
Topology optimization

Topology optimization for a perfect combination between stability, damping and weight.

Motorized spindles

Thanks to the different types of motorized spindles (HSK, SK, BIG-PLUS) you will have a wide range of possibilities to find the optimal solution for your machining. 

Drive concept

Depending on the equipment, the drive concept is based on one ball screw drive arranged in the mass center or two symmetrically arranged ball screw drives in the Y-axis. The torque motor in the B-axis, which is already installed in the standard model, also enables a fast positioning movement with maximum precision.

Maximum stability

Optimally designed Tool Center Point (TCP) ensures extremely stable processes and high cutting performance.

Efficient machine cooling

Our efficient machine cooling concept includes the cooling of the power train, control cabinet, motorized spindle, rotary table and cutting fluid system, whereby a high level of accuracy is achieved on the part. 

Machine control system

Working with familiar control system with choice between SIEMENS machine controls.

Work area

The maximum possible part can be machined in the work area with the maximum tool length (up to 830 mm).

Tool magazine

Choice between different tool magazine types in different sizes (up to 450 pockets). These have a modular structure and can also be exchanged afterwards using “plug and play”.

Chip conveyor

The chip conveyor can be designed for your different machining processes and is suitable for a wide variety of materials.

Cutting fluid system

The cutting fluid system is available in different packages and ensures a chip-free work area and a stable process. The optionally available IKZ with up to 120 bar rounds off the various additional options.

Request for an offer now

Would you like a specific offer for a 4-axis machine from GROB?


Just select the relevant specifications and we will promptly send you your personal offer for your milling machining center.



4-axis configurator

After Sales Service

Phone:  +1 (419) 358-9015