GROB G550T 5-axis Universal Mill-Turn Machining Center

The G550T mill-turn machining center offers the machining sector almost limitless possibilities for machining parts made of the most diverse materials.

High productivity, maximum stability and excellent maintainability set GROB universal machining centers apart, making them the ideal solution for your automated manufacturing facility.

The benefits at a glance
  • High productivity
  • Optimized availability
  • High visibility
  • Flexible applications
  • Maintainable
  • Compact design
  • Optimized access
  • Round-the-clock service
Unique Machine Concept

Horizontal spindle position
The horizontal spindle position permits the longest possible Z-travel path and optimum chip fall.

Maximum stability
The unique arrangement of the three linear axes minimizes the distance between the guides and the machining point (TCP), lending the machine considerable stability.

Tunnel concept
The tunnel concept allows the largest possible component – even in the case of with extremely long tools – to be swiveled and machined within the work area without collision.

Large swivel range
Three linear and two rotary axes permit 5-sided machining, 5-axis simultaneous interpolation as well as GROB TRAORI turning. With a swivel range of 230 degrees in the A’-axis and 360 degrees in the B’-axis, these machines offer the greatest possible positioning flexibility.

Working travels
in X-/Y'-/Z-axis (mm)
Max. speeds
in X-/Y'-/Z-axis (m/min)
Interference diameter
Chip-to-chip time t1
according to VDI 2852 (s) relative to speed (rpm)
Positioning accuracy
in X-/Y'-/Z-axis (mm)
Table diameter
Table load
with/without pallet (kg)
B'-axis speed
Total weight
without/with pallet changer (kg)
Tool length for single disk-type tool magazine
HSK-A/T63 (mm)
Tool length for double disk-type tool magazine
HSK-A/T63 (bottom/top/over both disks) (mm)

Draw on the experience we have garnered over several decades and benefit from the automation technology we tailor to meet your needs – from solutions with part storage systems to highly flexible manufacturing lines.

Rotary Pallet Storage System
  • Design versions with pallet storage positions at one to three levels
  • Fast double change when using two pallets thanks to an innovative pallet changing device
  • Visualization and organization of production orders with flexible production control software
  • State-of-the-art production control software with 19-inch touchscreen panel
  • A rotatable and lockable setup station with optimized access next to the machine control panel
Customer-Specific Automation Solution
  • The tougher requirements in the automation sector call for individual solutions tailored to the customer’s specific needs. GROB offers such solutions, from customized part handling through to flexible manufacturing lines with multiple machines and centralized tool supply
Gear Wheel
Dimensions of raw material (mm) Ø 250×50
Industry Mechanical engineering
Material Heat treatable steel
Motorized spindle 10,000 rpm
Power/torque 66 kW/340 Nm
Aluminum rims
Dimensions of raw material (mm) Ø 550×250
Industry Automotive
Material Aluminium
Motorized spindle 10,000 rpm
Power/torque 66 kW/340 Nm
Francis turbine wheel
Dimensions of raw material (mm) Ø 800×250
Industry Energy technology
Material Chromium-nickel steel
Motorized spindle 10,000 rpm
Power/torque 66 kW/3406 Nm