G420
Turn-mill center

  • Spindle clearance 102 mm
  • Chuck diameter 315 mm (400 mm optional)
  • Turning length 1600 mm

The innovative turn-mill center for high-performance
machining of large workpieces

Turning and milling – complete machining in new dimensions


Machine highlights

Your benefits

  • Identical main and counter spindles with spindle clearance D 102 mm
  • Chuck D 315 mm (optionally up to D 400 mm)
  • Tool stock for up to 139 tools
  • Powerful motorized milling spindle with proven Y/B quill kinematics for complex 5-axis milling operations
  • Sophisticated working area concept for turning lengths up to 1,600 mm and variable machining options
  • High thermal and mechanical stability
  • High dynamic response (rapid traverse rate up to 50 m/min)
  • Chip conveyor can be used on the left and right

G420 in Focus


Wide range of parts

For applications in the automotive, aerospace or mechanical engineering sectors

Turret head

  • Industry: Mechanical engineering
  • Material: Steel
  • D 273 mm x 76 mm

Flange

  • Industry: Mechanical engineering
  • Material: Steel
  • D 178 mm x 120 mm

Shaft

  • Industry: Automotive
  • Material: Steel
  • D 60 mm x 510 mm

Rotor carrier

  • Industry: Aerospace
  • Material: Steel
  • D 140 mm x 285 mm

The INDEX G420 turn-mill center offers the best performance for customers from the mechanical engineering, automotive and aerospace industries, with high availability and process reliability – the complete solution when it comes to high-performance machining of large workpieces.


Integrated automation solutions for efficient production

The integrated workpiece handling unit is available as an option. It can be used for loading and unloading as well as for the removal of remnants and is suitable for parts weighing up to 20 kg and with a diameter of up to D 120 mm. The handling unit is equipped with 2 CNC axes that are operated from the machine control.

Further individual automation solutions, such as conveyor belts or robot handling with ancillary functions, can be integrated on a customer-specific basis.


Complete machining based on a modular system


The INDEX G420 modular system offers a wide range of options. Up to 3 tool carriers can be integrated into the working area – all equipped with a Y axis. The working area offers ample space for machining any kind of workpieces. The working area can accommodate parts up to a length of 1600 mm. The powerful main and counter spindles are designed for bar diameters up to D 102 mm and for chuck parts up to D 315 mm (optionally D 400 mm). Turret steady rests are available for machining long or shafttype parts.
Of course, the INDEX G420 is also capable of simultaneous 5-axis machining.

The ergonomic setup and operating concept was of great importance for the new design. All relevant components are easily accessible for operating and maintenance personnel. Optionally, an integrated 2-axis workpiece handling system matched to the machining processes can be used for loading and unloading the machine.


Control


Best performance for applications

in the aerospace industries


Technical data

expand all
Turning length
mm
1,600
Speed max.
rpm
3,500
Chuck diameter
mm
315 (400 optional)
Torque at 100% / 40%
Nm
800 / 920
Power at 100% / 40%
kW
34 / 41
Tooling system
HSK-T63 / Capto-C6
Speed max.
rpm
12,000 (HSK-t63) / 18,000 (Capto-C6)
Power max.
kW
26 (HSK-T63) / 27.5 (Capto-C6)
Torque max.
Nm
150 (HSK-T63) / 100 (Capto-C6)
Slide travel X, rapid traverse, feed force
mm / m/min / N
750 / 30 / 10,000
Slide travel Y, rapid traverse, feed force
mm / m/min / N
+/-170 / 20 / 11,000
Slide travel Z, rapid traverse, feed force
mm / m/min / N
1600 / 50 / 9,000
B-axis swivel angle
degree
-25 / +205 / +/-115
Tooling system
HSK-T63 / Capto-C6
Tool weight max.
kg
10
Tool diameter max.
mm
160
Tool length max.
mm
500
Tooling system
VDI-40
Number of stations
12
Speed max.
rpm
5,400
Torque at 100% / 25%
Nm
20 / 35
Slide travel X, rapid traverse, feed force
mm / m/min / N
185 / 30 / 10,000
Slide travel Y, rapid traverse, feed force
mm / m/min / N
70 / 20 / 11,000
Slide travel Z, rapid traverse, feed force
mm / m/min / N
1,900 / 50 / 9,000
Length x width x height
mm
5060 x 3000 x 3165
Weight
kg
23,000
Connecting power
kW
112
iXpanel - i4.0 ready
Basis Siemens S840D sl

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INDEX G420

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