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Home » Index Provides Single-Setup Machining of Large Parts with G420 Turn-Mill Center

Index Provides Single-Setup Machining of Large Parts with G420 Turn-Mill Center

January 29, 2019
Index has announced the launch of its new G420 turn-mill center. The machine features identical 3,500 rpm twin spindles with 315-mm (400 mm optional) chucks and a robust 5-axis milling spindle that provides up to 12,000 rpm with an HSK-T63 interface or 18,000 rpm with a Capto C6 interface. The machine’s high inherent stability and dynamic response make it an exceptional choice for working with difficult-to-machine materials, providing significant value to aerospace manufacturers looking to complete large, complex parts in a single setup.

The G420’s main and counter spindles each accommodate bar stock of up to Ø102 mm and can chuck parts up to Ø315 mm (Ø400 mm optional). The large work area provides space for parts up to a maximum length of 1,600 mm and incorporates an ergonomic design to optimize operator accessibility. Additionally, an optional workpiece handling system can be incorporated for loading, unloading and transferring parts of up to 20 kg and Ø120 mm. 

A powerful milling spindle offers 26 kW, 150 Nm and 12,000 rpm with an HSK-t63 interface or 27.5 kW, 100 Nm and 18,000 for the Capto C6 option. Optimized Y/B quill kinematics allow for highly productive simultaneous 5-axis milling operations to tackle complex geometries. 

Designed as a modular system, the G420 can accommodate up to three tool carriers in its workspace, each equipped with a Y axis. Turret steady rests are available to ensure maximum stability when machining long or shaft-shaped parts. 

Ergonomics and flexibility were major considerations when designing the G420. All relevant components are easily accessible to operating and maintenance personnel. A chip conveyor can be mounted to either side of the machine, allowing customers to make optimum use of available floor space. Furthermore, automation solutions, including conveyor belts and robot handling units, can easily be integrated to provide additional enhancements to productivity.

Visitors to Index’s global 2019 Open House will be able to see the G420 in action. Welcoming thousands of guests from around the world, this event will take place March 26-29 in Reichenbach, Germany.
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