G520F

Machining center for frame structure and chassis parts

The GROB G520F machine concept guarantees customers in the automotive industry flexible and precise 5-axis machining of frame structure and chassis parts, as well as battery housings.

As a stand-alone system or machining center linked to other machines, the two-spindle G520F is able to cut two parts in parallel in the shortest time possible – high dynamics and ideal chip transport included.

Automotive

Technical data

Working travels

1,450/1,200/1,035

in X-/Y-/Z-axis (mm)

Max. speeds

80/50/100

in X-/Y-/Z-axis (m/min)

Interference diameter

2 x 1,200

(mm)

All technical data

Chip-to-chip time t₁

2.7

according to VDI 2852 (s) relative to speed (rpm)

Positioning accuracy

0.01

in X-/Y-/Z-axis (mm)

Total weight

35,000/45,000

without/with pallet changer (kg)

Table load

2x750

(kg) (without/with palett)

The benefits at a glance

Best chip fall

High dynamics

High manufacturing flexibility

High machining accuracy

Customer-specific part loading

As a stand-alone machine or linked in the system

Suitable for MQL machining operations

Short chip-to-chip times

Machine concept

Axis arrangement

The axis combination is based on the tried and proven G-series GROB machine concept with horizontal spindle position and guarantees free chip fall and optimized heat dissipation.

Modular configuration

The modular and standardized machine components guarantee the best possible GROB product quality.

Individual automation

Available with manual or automatic front loading or automatic top loading, and optionally with integrated pallet changer.

Two spindles

Two-spindle machine for machining two parts in parallel.

Technology down to the finest detail

Chip disposal

Uninterrupted part machining with chip disposal by a scraper-type conveyor

Horizontal motorized spindle

For meeting the toughest cutting requirements

Electrical cabinet

Optimized access and simple orientation for preventive maintenance and inspection

Typical machining operations

Side rail

Industry	Automotive
Material	Aluminium alloy
Motorized spindle	18,000 rpm
Power/torque	29 kW/34.6 Nm

Suspension strut dome

Industry	Automotive
Material	Aluminium alloy
Motorized spindle	18,000 rpm
Power/torque	29 kW/34.6 Nm

Battery tray

Industry	Automotive
Material	Aluminium alloy
Motorized spindle	18,000 rpm
Power/torque	29 kW/34.6 Nm

Subframe

Industry	Automotive
Material	Aluminium alloy
Motorized spindle	12,000 rpm
Power/torque	40 kW/161.4 Nm

Giga-Casting

Industry	Automotive
Material	Aluminium alloy
Motorized spindle	18,000 rpm
Power/torque	20 kW/26 Nm

Spindle versions

Besides the broad range of spindles, the motorized spindles designed and produced by GROB itself are the preferred choice for optimized process design. These are optimally matched to the G520F and have optimized quality features.

Motorized spindle versions

HSK-A63, 47 Nm, 12,000 rpm
HSK-A63, 47 Nm, 18,000 rpm
HSK-A63, 83 Nm, 12,000 rpm
HSK-A63, 86 Nm, 17,000 rpm
HSK-A100, 185,5 Nm, 12,000 rpm
HSK-A100, 340 Nm, 10,000 rpm

GROB Spindle Diagnostics (GSD)

GROB spindle diagnostics is a system that automatically monitors the condition of the motorized spindle. Benefits are a prolonged motorized spindle useful life, reduced tool wear and scheduled maintenance.

GROB Chip-in-Spindle Detection System (SiS)

This system is able to detect at an early stage tool clamping faults caused by chips between the plain surface and the spindle nose from 10 μm. So the machining process is optimized and rejects and damage are avoided.

Tool magazine

Single disk-type tool magazine

Double disk-type tool magazine

Control systems

Choose between modern and powerful CNC control systems from market leaders for the G520F.

Automation solutions

Draw on the experience we have garnered over several decades and benefit from the automation technology we tailor to meet your needs.

2-way/4-way pallet changer system

Use the GROB pallet changer system to increase your productivity by retooling during machining time.

Pallets are interchanged between setup station and work area by means of a rotating pallet changer. A high degree of process reliability during the pallet change sequence is guaranteed by an integrated seating check system and by flushing the zero point system.

2-way/4-way pallet changer system

Benefits:

Loading and unloading of the parts to the machine setup station during the machining operation
2-/4-way pallet changer system compactly integrated into the machine
Optimum accessibility to the setup station
Fast exchange of pallets between work area and setup station
Integrated seating check system for the pallets
Wide-opening setup station doors with crane loading capability

Loading systems

The G520F is designed for efficient work area loading. All loading devices are GROB proprietary developments, and so the individual components are guaranteed to be optimally matched.

Loading systems

Top or front loading:

Robot

Top loading:

Cartesian linear gantry
Cartesian linear gantry with telescope

Front loading:

Swiveling changer

Transportation and automation components

Together with the GROB automation system, the transport and automation components create a module from which complex automation systems can be combined. The high degree of standardization ensures the best possible price/performance ratio and a high degree of technical optimization.

Transportation and automation components

Automation system
Lifts
Swivel conveyors
Rotary tables
Lift transverse units
Swivel units
Storage systems
SPC stations
Zero-point clamping systems
Adapter plates