Index G400/420

The INDEX G400/G420 is an innovative turn-mill center in a class of its own – especially when it comes to efficient production of large workpieces with high complexity and variance. Based on a rigid and vibration-damping machine bed in mineral cast block design and generously dimensioned linear guides in X and Z axes, this series stands for modern mechanical engineering and thus for excellent machining results with high productivity. Three tool carriers with a tool pool of up to 139 tools provide maximum flexibility for complete machining of complex workpieces. A total of up to 16 productive axes ensure impressive machining results without exception. The large work area is unique in this class and impresses with its sophisticated features that allow simultaneous machining using all three tool carriers with no collision risk.

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Benefits Features Specifications

High thermal and mechanical stability
High dynamic response (rapid traverse rate up to 50 m/min)

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
Chip conveyor can be used on the left and right

Working range	Turning length mm 1,600
	Turning length – long version mm 2,300
Main spindle and counter spindle	Spindle clearance mm 102 120
	Spindle head ISO 702/1 A8 A11
	Max. speed rpm 4,000 3,000
	Drive power (100% / 40% DC) kW 34/41 34/43
	Torque (100%/40% DC) Nm 810/920 800/1,000
	Chuck diameter mm 315 400
	C axis resolution degrees 0.001 0.001
Upper tool carrier Motorized milling spindle	Kinematics XYZB
	Tooling system HSK-T63 // Capto-C6
	Max. speed rpm 12,000 // 18,000
	Drive power (100% DC) kW 26 // 27.5
	Torque (25% DC) Nm 150 // 100
	X slide travel, rapid traverse rate, feed force mm / m/min / N 750 / 30 / 10,000
	Slide travel Z, rapid traverse, feed force mm / m/min / N1,400 / 50 / 10,000
	Y slide travel, rapid traverse rate, feed force mm / m/min / N +/-170 / 20 / 11,000
	Z rapid traverse rate, feed force m/min / N 50/11,000
	B axis swivel range, rapid traverse rate degrees/rpm -25 / +205 / 75
Tool carrier, bottom left/right Turret XYZ	Tooling system DIN 69880 VDI-40, W-serration
	Number of stations (live), turret XYZ 12
	Max. speed rpm 5,400
	Drive power (25% DC) kW 10.5
	Torque (25% DC) Nm 35
	X slide travel, rapid traverse rate, feed force mm / m/min / N 185 / 30 / 10,000
	Y slide travel, rapid traverse rate, feed force mm / m/min / N +/-70 / 20 / 11,000
	Z rapid traverse rate, feed force m /min / N 40/11,000
Tool magazine	Tooling system HSK-T63 / Capto-C6
	Tool magazine locations 58/115
	Max. tool weight kg 10
	Max. tool diameter mm 160
	Max. tool length mm 500
	Max. tilting torque Nm 15
Turret steady rest (optional)	Turret steady rest clamping range (with chip guard) mm 20 - 101 / 50 - 131
Workpiece handling unit for shaft/flange (optional)	Workpiece weight, shaft/flange kg 25/20
	Max. workpiece diameter, shaft (for discharge) mm (dia./length) 120/1,000
	Max. workpiece diameter, flange (feeding/discharge) mm dia./length 250/200
General data	Length x width x height mm 5,060 x 3,025 x 3,165
	Length x width x height - long version mm 6,000 x 3,025 x 3,165
	Weight, short/long version t 23/28
	Connected power kW 112
Control	Siemens S840D sl