Get in touch
If you have any questions about our machines, or interest in setting up a new machining process. Our expert team are more than happy to help.
G420
The innovative turn-mill center for high-performance machining of large workpieces
Insights into the G420
- 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.
- 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
Key Features
| Working area | Turning length | 1,600 (2,500 optional)mm |
| Main spindle | Speed max. | 3,500rpm |
| Chuck diameter | 315mm (400 optional) | |
| Torque at 100%/40% | 800/920Nm | |
| Power at 100%/40% | 34/41kW | |
| Motor milling spindle | Tooling system | HSK-T63 / Capto-C6 |
| Speed max | 12,000 (HSK-t63) / 18,000 (Capto-C6)rpm | |
| Power max | 26 (HSK-T63) / 27.5 (Capto-C6)kW | |
| Torque max | 150 (HSK-T63) / 100 (Capto-C6)Nm | |
| Slide travel X, rapid traverse, feed force | 750 / 30 / 10,000mm / m/min / N | |
| Slide travel Y, rapid traverse, feed force | +/-170 / 20 / 11,000mm / m/min / N | |
| Slide travel Z, rapid traverse, feed force | 1600 / 50 / 9,000mm / m/min / N | |
| B-axis swivel angle | -25 / +205 / +/-115degrees | |
| Tool magazine | Tooling system | HSK-T63 / Capto-C6 |
| Tool weight max | 10kg | |
| Tool diameter max | 160mm | |
| Tool length max | 500mm | |
| Tool carrier | Tooling system | VDI-40 |
| Number of stations | 12 | |
| Speed max | 5,400rpm | |
| Torque at 100% / 25% | 20 / 35Nm | |
| Slide travel X, rapid traverse, feed force | 185 / 30 / 10,000mm / m/min / N | |
| Slide travel Y, rapid traverse, feed force | 70 / 20 / 11,000mm / m/min / N | |
| Slide travel Z, rapid traverse, feed force | 1,900 / 50 / 9,000mm / m/min / N | |
| General | Length x width x height | 5060 x 3000 x 3165mm |
| Weight | 23,000kg | |
| Connecting power | 112kW | |
| Control | iXpanel - i4.0 ready | Basis Siemens S840D sl |
Machine In The Spotlight Series – INDEX G420
The INDEX G420 – a machine capable of producing large components within a compact footprint of just fifteen square metres – is at the forefront of versatile CNC milling machines. Manufactured by German lathe company, INDEX, this machine is only available in the UK, Ireland and the Gulf Cooperation Council through Kingsbury.