GROB / GROB-WERKE

German 5-axis universal machining centers G150, G350, G550, G750, mill-turn systems, modular production cells, and automation.

GROB 5-Axis Universal Machining Centers G150, G350, G550, G750

GROB 5-axis universal machining centers G150, G350, G550, and G750 utilize a horizontal spindle configuration. The architecture provides optimal gravity chip fall and rigidity for cutting titanium, superalloys, and steel. Rigid tilt-rotary tables ensure high dynamic accuracy.

Working travels X/Y/Z: from 450/670/665 mm (G150) up to 1,000/1,100/1,175 mm (G750)
Horizontal motorized spindle with high torque ratings reaching 575 Nm
Tilt-rotary A/B table with swivel range from -185° to +45° and direct-drive torque motors
Spare parts: motorized spindle cartridges, roller linear guides, ballscrews, hydraulic clamps

GROB Mill-Turn Machining Centers G350T, G550T, G750T

GROB mill-turn machining centers G350T, G550T, and G750T combine 5-axis milling and turning operations in a single setup. The high-torque rotary table provides high turning velocities with dynamic balancing. The platform reduces setup times for complex housings and disks.

Combined 5-axis milling and turning within a single workspace using TRAORI technology
High-torque direct-drive rotary turning table operating with in-process dynamic balancing
HSK-T63 and HSK-T100 motorized spindles featuring positive tool locking for turning
Assemblies: rotary tables, hydraulic chucks, dynamic balancing sensors, servo motors

GROB Modular Machining Centers G-Modules G300, G320, G500, G520

GROB modular machining centers G300, G320, G500, G520, G700, and G720 are engineered for agile high-volume automotive production. Modules are configured in single-spindle or twin-spindle layouts with dynamic axis feeds. The machines seamlessly integrate into automated transfer lines.

Single-spindle and twin-spindle configurations for synchronized parallel workpiece machining
Axis accelerations up to 10 m/s² with rapid traverse speeds reaching 100 m/min
Turnkey integration with tunnel pallet conveyors and overhead gantry loading systems
Components: twin-spindle heads, tool changer servos, rotary unions, mechanical couplings

GROB Machining Centers for Structural Parts and Gigacastings G500F, G600F, G900

GROB specialized machining centers G500F, G520F, G600F, and the G900 series are tailored for mega-castings and chassis subframes. The extended machining envelope accommodates large battery trays and longitudinal beams. Rigid gantry frames dampen vibration during wide-face milling.

High-speed machining of thin-walled structural gigacastings and extruded chassis members
Multi-spindle and bridge gantry arrangements providing expansive X and Y travel ranges
Integrated hydraulic and vacuum fixture interfaces for large-format aluminum battery trays
Parts: gantry linear guides, rack-and-pinion feed drives, absolute encoders, milling heads

GROB E-Mobility Production and Assembly Systems

GROB e-mobility production systems encompass hairpin stator manufacturing, rotor assembly, and battery pack production. Automated stations handle bending, twisting, laser welding, and impregnation of traction motor windings. In-line quality monitoring guarantees maximum drive life.

Automated wire bending, hairpin insertion, and high-precision laser welding of stators
Assembly lines for prismatic, cylindrical, and pouch battery cells, modules, and packs
Automated resin trickling, thermal curing, and comprehensive electrical insulation testing
Spares: wire forming dies, laser processing heads, high-speed servo actuators, sensors

GROB Automation Solutions, Pallet Storage PSS-R / PSS-L, and GRC Robots

GROB automation solutions comprise rotary pallet storage PSS-R, linear pallet storage PSS-L, and GRC robotic cells. The systems enable continuous unattended workpiece processing around the clock. Modular GROB4Automation software coordinates machine capacity and job scheduling.

Rotary pallet storage systems PSS-R holding up to 15 pallets within a minimal floor space
Linear pallet systems PSS-L featuring multi-level racking and automated stacker cranes
Robotic workpiece loading cells GRC designed for direct part exchange into the clamp
Hardware: robotic gripper heads, rotating setup stations, standard pallets, robot tracks

Spare Parts, Motorized Spindles, Guideways, and Components for GROB

We supply wear parts, replacement subassemblies, and industrial electronics for the GROB machining center portfolio. Offerings include motorized spindles, bearing sets, feed servomotors, ballscrews, and CNC hardware. Components are verified using manufacturer nameplate serials.

Precision GROB motorized spindle units featuring high-precision ceramic bearings
Super-precision spindle angular contact bearing sets conforming to ISO P4 and P2 classes
High-lead preloaded ballscrew assemblies and roller linear guide packs for X, Y, Z axes
Drive electronics: Siemens Sinumerik One inverter blocks, Heidenhain optical encoders

Scheduled Maintenance, Laser Diagnostics, Spindle Rebuilds, and Commissioning

Specialized engineering services deliver scheduled preventive maintenance, laser alignment, spindle rebuilds, and commissioning for GROB machinery. Experienced field technicians calibrate 5-axis kinematics and tune cutting programs under formal contract. All mechanical work is tested and documented.

Field laser interferometer alignment and ISO 230-4 circularity Ballbar testing
Complete motorized spindle rebuilds including dynamic balancing at operating speeds
Calibration of 5-axis kinematic interpolation parameters via KinematicsOpt and Cycle 996
On-site commissioning, machine leveling, production start-up, and operator handover

Horizontal Spindle Concept and Vibration-Damped Bed Rigidity of GROB 5-Axis Centers

German machine tool builder GROB-WERKE GmbH & Co. KG designs 5-axis universal machining centers G150, G350, G550, and G750 around a signature horizontal spindle architecture.

This layout directs chips straight downward by gravity into central scraper flumes, completely eliminating recutting and heat buildup on critical workpiece surfaces.

The intrinsically stiff fabricated steel bed frame utilizes optimized internal ribbing and vibration-damping polymer fillers to absorb severe cutting chatter during deep face milling of aerospace titanium alloys and high-nickel forgings.

Direct-drive rotary trunnion tables on A and B axes unlock virtually unconstrained 5-axis continuous contouring.

Direct-Drive Rotary Tables and Advanced TRAORI Kinematics on GROB G-T Mill-Turn Centers

GROB G350T, G550T, and G750T universal mill-turn machining centers incorporate direct-drive rotary tables providing high turning velocities in turning mode.

Integrated in-process accelerometers evaluate rotary workpiece balance before ramping up to turning velocity, preventing dynamic imbalance and spindle wear.

Integrated TRAORI (Tool Rapid Orientation Interpolation) within Siemens Sinumerik One controls continuously calculates tool tip coordinates relative to tilting rotary planes.

Complex aerospace turbine casings, diffusers, and thick-rim discs are completed in a single setup without reclamping, preserving absolute concentricity.

Architecture of Modular G-Modules and Turnkey Automated Pallet Handling Systems

Engineered for agile series production of engine blocks, cylinder heads, and transmission housings, GROB G-modules (G300, G320, G500, G520, G700, and G720) deliver high dynamic feed rates across one or two independent spindles.

Single-spindle and twin-spindle configurations allow manufacturers to scale throughput seamlessly.

G-modules connect natively with rotary pallet storage PSS-R, multi-tier linear pallet systems PSS-L, and overhead gantry robots.

Central GROB4Automation software supervises pallet queues, predictive tool life counters, and real-time machine availability to guarantee uninterrupted autonomous operation across multi-shift production.

G-Series Machining Centers for Gigacastings and E-Mobility Manufacturing Systems

GROB G500F, G520F, G600F, and the large-envelope G900 series are optimized for structural gigacastings and lightweight automotive aluminum subframes.

Wide-stance gantry bridge construction accommodates oversized die-cast battery enclosures while maintaining high acceleration along extended X and Y axes.

In the e-mobility sector, GROB supplies turnkey industrial assembly systems for traction motor hairpin stator forming, automated wire insertion, twisting, and fiber laser welding, alongside modular battery pack lines.

The integrated technology ensures high slot fill factors, minimal contact resistance, and long-term powertrain reliability.

GROB / GROB-WERKE and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of GROB / GROB-WERKE and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.