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G550a

5-axis universal machining center
The G550a universal machining center meets the broadest range of part requirements, offering customers an exclusive entry to GROB milling technology.
High reliability and the option of modular expansion with automation packages make the G550a basic model the perfect solution for your efficient and cost-conscious production facility.
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Mechanical engineering
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Automotive
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Die and Mold Industries
Technical data
Working travels
800/950/1,020
in X-/Y-/Z-axis (mm)
Max. speeds
60/42/60
in X-/Y-/Z-axis (m/min)
Interference diameter
900
(mm)
All technical data
Chip-to-chip time t1
4.8
according to VDI 2852 (s) relative to a rotational speed of 12,000 (rpm)
Positioning accuracy
0.006
in X-/Y-/Z-axis (mm)
Table diameter
770
(mm)
Table load
700/600
without/with pallet (kg)
Total weight
21,500/25,200
max. (kg) without/with pallet changer
Tool length with single disk-type tool magazine
465/-
HSK-A63 (mm) (outside/inside)
Tool length with compact double disk-type tool magazine
500/200
HSK-A100 (mm) (outside/inside)
The benefits at a glance
checkboxShort payback period
checkboxHigh productivity
checkboxModularly expandable
checkboxRound-the-clock service
checkboxFlexible applications
checkboxBest machining quality
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 part to be swiveled and machined within the work area without collision – even in the case of machining with extremely long tools.

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.

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Select your desired specifications for a 5-axis machine from GROB directly in the form and we will send you your personal offer promptly!

 

 

5-axis configurator

Fields marked with * are required.

MORE as standard
Stiff spindle axis

with optimally positioned bearing close to the operating point

Unique overhead machining

with excellent chip fall and reduced thermal load in the part

Efficient machining cooling

Active cooling of heat-absorbing components/ assemblies

Small footprint

thanks to compact machine concept

Perfect view

of the machining operation through a laminated glass safety screen

Working with the familiar control system

Possibility to choose between SIEMENS and HEIDENHAIN machine control systems

1
Stiff spindle axis

with optimally positioned bearing close to the operating point

2
Unique overhead machining

with excellent chip fall and reduced thermal load in the part

3
Efficient machining cooling

Active cooling of heat-absorbing components/ assemblies

4
Small footprint

thanks to compact machine concept

5
Perfect view

of the machining operation through a laminated glass safety screen

6
Working with the familiar control system

Possibility to choose between SIEMENS and HEIDENHAIN machine control systems

G550a – Volume Machining
Reliable, automatable and cost-conscious:
The universal machining center G550a offers an
exclusive entry to GROB milling technology.
G550a Volume Machining
Typical machining operations
Output carrier
Dimensions of raw material (mm)Ø 174x36
IndustryMechanical engineering
MaterialC45
Motorized spindle12,000 rpm
Power/torque52 kW/83 Nm
Connecting rod
Dimensions of raw material (mm)160x80x30
IndustryMechanical engineering
MaterialSteel
Motorized spindle16,000 rpm
Power/torque32 kW/206 Nm
Vise bottom part
Dimensions of raw material (mm)415x130x115
IndustryMechanical engineering
MaterialSteel
Motorized spindle9,000 rpm
Power/torque65 kW/575 Nm
Housing
Dimensions of raw material (mm)150x150x100
IndustryMechanical engineering
Material1.1191 / CK45
Motorized spindle16,000 rpm
Power/torque32 kW/205 Nm
Bearing housing
Dimensions of raw material (mm)Cast blank 
IndustryMechanical engineering
MaterialGG25
Motorized spindle10,000 rpm
Power/torque26 kW/345 Nm

Automation solutions

Rotary pallet storage system (PSS-R)
Rotary pallet storage system (PSS-R)

For up to 13 pallets with small footprint.

Part/pallet clamping system
Part/pallet clamping system

for added flexibility

Pallet changer
Pallet changer

for simple setup during the machining operation

Linear pallet storage system (PSS-L)
Linear pallet storage system (PSS-L)

A highly automated, flexible manufacturing line for a wide variety of part machining. 

Axis arrangement

Three linear and two rotary axes permit 5-sided machining, as well as 5-axis simultaneous interpolation.

The benefits to you
  • Optimally designed machining point (TCP) for extreme rigidity
  • Longest Z-travel path in this machine class
  • Extremely large swivel range of 230° in the A-axis
  • Largest possible part in the work area can be machined with maximum tool length

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 G550a and have optimized quality features.

Motorized spindles
  • HSK-A63, 83 Nm, 12.000 rpm 
  • HSK-A63, 206 Nm, 16.000 rpm 
  • HSK-A63, 47 Nm, 18.000 rpm 
  • HSK-A100, 575 Nm, 9.000 rpm 
  • HSK-A100, 340 Nm, 10.000 rpm

Available option packages

Basic machine
  • Decentralized work area extraction system
  • Automatic work area door
Tool magazine
  • Tool cleaning device
  • Electromechanical tool breakage detection device
  • Laser measurement system for milling tools
  • Tool coding
Accessories
  • Touch probe
  • Machine status light
  • 3D model of the machine
  • SIEMENS or HEIDENHAIN hand-held controller
Cutting fluid system
  • Chip conveyor with cutting fluid filtration system (paper band filter) and internal cutting fluid supply
  • A choice of 3 different high-pressure cutting fluid systems (23, 5-40 and 10-80 bar)
  • Cooling unit for cutting fluid
  • Oil skimmer
  • Washing gun
Software options
  • Swivel axis calibration GSC
  • GROB inspection equipment set for improved kinematics
Service
  • Remote machine diagnostics with status control switch
  • Spare part basic package / expansion package
GROB Service
Customer service

GROB SYSTEMS, Inc.
Phone:  +1 (419) 358-9015
E-mail:   info@us.grobgroup.com