G350

5-axis universal machining center

The G350 5-axis universal machining center offers all customers in the machining sector almost limitless possibilities for milling parts made of the most diverse materials.

Our universal machining center is designed to meet the multiple requirements of various sectors and offers a convincing range of applications.

Aerospace

Mechanical engineering

Automotive

Energy technology

Medical technology

Die and Mold Industries

Technical data

Working travels

600/855/750

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

Max. speeds

70/45/90

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

Interference diameter

720

(mm)

All technical data

Chip-to-chip time t₁

2.7

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

Positioning accuracy

0.006

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

Table diameter

570

(mm)

Table load

338/400

with/without pallet (kg)

Total weight

15,300/17,500

without/with pallet changer (kg)

Tool length for single disk-type tool magazine

365

HSK-A63 (mm)

Tool length for double disk-type tool magazine

365/180/550

HSK-A63 (bottom/top/over both disks) (mm)

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, as well as 5-axis simultaneous interpolation, with a swivel range of 230 degrees in the A'-axis and 360 degrees in the B'-axis.

Pure technology in the smallest space

Tilting rotary table

Almost limitless machining potentials thanks to the largest possible swivel range

Chip disposal

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

Horizontal motorized spindle

For meeting the toughest cutting requirements

Machine bed

Intrinsically stiff welded design for optimum machine rigidity

Disk-type tool magazine

Fast tool change through an intelligent magazine to motorized spindle arrangement

G350 – GROB precision

See for yourself the benefits of the G350 and experience our 5-axis machining center in action.

Find more videos here:

Typical machining operations

Structural housing

Dimensions of raw material (mm)	390x250x200
Industry	Aerospace
Material	Aerospace aluminium
Motorized spindle	30,000 rpm
Power/torque	53 kW/63 Nm

Gas turbine blade

Dimensions of raw material (mm)	70x50x200
Industry	Energy technology
Material	Stainless steel
Motorized spindle	16,000 rpm
Power/torque	32 kW/206 Nm

Output carrier

Dimensions of raw material (mm)	Ø 174x36
Industry	Mechanical engineering
Material	C45
Motorized spindle	12,000 rpm
Power/torque	52 kW/83 Nm

Bone insert

Dimensions of raw material (mm)	50x35x40
Industry	Medical technology
Material	Stainless steel
Motorized spindle	16,000 rpm
Power/torque	32 kW/206 Nm

Eiffel Tower

Dimensions of raw material (mm)	50x35x40
Industry	Die and Mold Industries
Material	Aluminium
Motorized spindle	16,000 rpm
Power/torque	32 kW/206 Nm

Tilting rotary tables

Various tilting rotary table versions are available for the G350, depending on the requirement. The powerful rotary tables are based on the latest torque motor technology and offer optimized dynamics.

Tilting rotary tables A'-/B'-axis

Choose between tilting rotary tables with T-grooves arranged in parallel (standard),as well as tilting rotary tables with pallet clamping system (option).

Other tilting rotary table versions

We offer a highly dynamic rotary table with pallet clamping system for the highly efficient machining of large parts with short tools. Long, narrow components are machined on Vario rotary table versions as the basic module, with steady rest and tailstock center or with steady rest and tandem drive.

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 G350 and have optimized quality features.

Motorized spindle versions

HSK-A63, 47 Nm, 12,000 rpm (standard)
HSK-A63, 83 Nm, 12,000 rpm
HSK-A63, 206 Nm, 16,000 rpm
HSK-A63, 47 Nm, 18,000 rpm
HSK-A63, 47 Nm, 21,000 rpm
HSK-A63, 63 Nm, 30,000 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

GROB tool magazine technology is set apart by fast chip-to-chip times, a smaller space requirement and optimized accessibility. Choose the right solution for you.

Additional tool magazine

Single disk-type tool magazine

Double disk-type tool magazine

Machine control panel

GROB⁴Pilot is your powerful machine control panel. A multi-functional user interface offers the machine operator a convenient working environment. The entire production process – from the CAD model through to the NC simulation – is digitally mapped on the GROB⁴Pilot control itself. GROB⁴Pilot is available for the control systems SIEMENS 840D sl and HEIDENHAIN TNC 640.

Features:

3D display of parts and their clampings
Read out of dimensions or product characteristics (PMI) on the 3D model itself
Touch keyboard within the display
HTML5-compliant web browser
Custom user interfaces
Activation of remote maintenance via switch

Advantages:

Enhanced user comfort with simplified and intuitive machine operation
CAD/CAM programming on the machine itself
Access to the GROB-NET⁴Industry platform
Extended applications for increased efficiency
Paperless production facility
Time saving by use of applications parallel to machine operation

Automation solutions

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

Three design versions (PSS-R5, PSS-R10, PSS-R15) 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

Rotary pallet storage system

Benefits:

Complete solution from a single source in a standardized design
Cost-effective production through increased machine utilization
Capability to machine in unmanned/lightly-manned shifts
Optimized view into the work area and towards the pallet storage positions
Parallel loading and unloading of the pallets during the machining operation
High storage capacity with small footprint
Pallet storage solution for small initial investment
Simple retrofit on existing machines

Pallet changer system

Pallets are interchanged by means of a rotating pallet changer
Optimally-matched pallet clamping system fixes pallets on the rotary table and setup station in the machine
An integrated seating check system and flushing of the zero point clamping system guarantee high process reliability during the pallet change operation.

Pallet changer system

Benefits:

Loading and unloading of the parts to the machine setup station during the machining operation
Double pallet changer system compactly integrated into the machine
Optimized access to the rotatable and lockable 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

Customer-specific automation solution

Compact pallet storage system

The compact pallet storage system offers even greater flexibility in the configuration of pallet storage positions, permits a mixed operation of differently sized pallets and considers the length of the parts.

Flexible manufacturing system

In the full version, both the tool flow and the part flow can be automated.

Software options

Use the GROB software solutions to optimize and analyze the machine kinematics of the G350 and minimize deviations down to the finest detail.

GROB swivel axis calibration (GSC)

For highly precise machine calibration and control-specific kinematic cycles. The GSC achieves a much higher level of accuracy than standard calibration cycles without using swivel cycles.

GROB kinematic measurement inspection equipment set

In addition to the kinematic measuring cycles, all measuring instruments are supplied in an inspection equipment set.

Interpolation turning PLUS

The interpolation turning PLUS software solution enables any turning operations on the G350. Because both new and standard tools can be used, it remains economical at all times and is the ideal solution for prototype and small series production.

Energy efficiency package

For efficient use of energy by reducing the power consumption of the G350 (with SIEMENS control system).

Gear hobbing

For individual corrections and block entry at any cut, gear hobbing is a suitable process for external gearing and gearing on shafts.

Gear skiving

For perfect external and internal gearing with power skiving machines. Frontal part access required for hob peeling.

Accessories

Our extensive range of accessories makes the G350 more flexible, while increasing your own productivity and economy at the same time.

High-pressure cutting fluid system

Standard version: 23 bar high-pressure cutting fluid pump, including On/Off functionality
Additional versions for higher pressure requirements: 5–40 bar/10–80 bar high-pressure cutting fluid pump
Option of an additional cooling unit for all high-pressure cutting fluid systems

Decentralized work area mist collecting system

Emulsion mist separator with the option to realize an integrated pre-separator stage, a regenerative filtration stage and an integrated post-filter stage with 800 m³/h of controllable suction power.

Oil skimmer

The oil skimmer removes hydraulic and lubricating oil from the cutting fluid surface to keep the cutting fluid as clean as possible. The oil skimmer comprises a belt drive, a wiper and a collecting vessel with level switch.

Tool cleaning device

Brushing and air cleaning of the conical and flat surfaces of the tool interface during the machining operation
Combined and patented GROB brushing/blow-off device

Tool coding

Allows data to flow between tool and machine control system
Shorter tooling times
Write-read unit for tools with tool coding
Errors when inputting the tool data avoided

Laser measurement system for milling tools

Contactless, optical tool monitoring/measurement of rotating tools, such as milling cutters and drills
Measurement and monitoring of tool length, tool diameter, tool breakage, tool wear and tool cutting edge status

Electromechanical tool breakage detection device

Tool breakage detection via a tactile tool breakage detection device
Monitoring during machining
Tool breakage detection possible from a length of 100 mm

Hand-held controllers

General equipment: Keys for selecting the axis directions, feed, rapid travel, emergency stop and for acknowledging axis movements
SIEMENS hand-held controller: Additional option for tool data input by connecting the controller to the tool loading station
HEIDENHAIN electronic handwheel or FANUC hand-held controller HMO panel: Compact controllers for a high degree of flexibility during setting up and tooling work

Machine status lamp

A three-color status lamp is used to visually indicate the machine status
A distinction is drawn between automatic mode (green), warning (yellow) and malfunction (red)
Available either as a stacked light pole or integrated into the machine enclosure.

Touch probe

Aligning and measuring parts or clamping fixtures, setting zero and reference points for downstream machining and for machine kinematics measurement
Touch probe including data transmission via infrared or radio
Non-machining time for tooling and measuring reduced
Higher achievable part accuracy