The INDEX G220 incorporates twin spindles, a 5-axis milling spindle and large tool capacity to produce complex, small-to-medium-sized parts in a single set-up.
As with all machines in the G Series of turn-mill centers, the G220 is built on a rigid, vibration-damping machine bed in a mineral cast block design. Two identical, fluid-cooled spindles provide 47 HP (35 kW) and 140 ft.-lbs. (190 Nm) at 100% DC. The smallest machine in its family, the G220 accommodates bar stock to a maximum diameter of 3.0", (76 mm), chucked parts to a maximum diameter of 9.1" (230 mm), and workpieces to a maximum turning length of 35.4" (900 mm).
Twin turrets located at the bottom of the machine's workspace move along the X, Y and Z axes for increased flexibility. Companies can select between 15-tool turrets with a VDI25 interface or 12-tool turrets with a VDI30 interface. All turret stations can be equipped with live tools.
A 5-axis milling spindle is available in an HSK-T63 interface with specs of 12,000 RPM, 60.3 HP (49 kW) and 53.1 ft-lbs. (72 Nm) at 25% DC, or an HSK-T40 interface with specs of 18,000 RPM, 25.5 HP (19 kW) and 22.1 ft-lbs. (30 Nm) at 25% DC. The motorized milling spindle is provided on a Z-axis slide with a hydrodynamically mounted Y/B axis arranged above the axis of rotation.
The machine's milling spindle is served by a large-capacity tool magazine, the largest version of which can house up to 139 tools. Stations in the magazine are accessible via set-up stations on the front and rear of the machine to facilitate tool changes without interruption of the cutting process.
The design of the G220's workspace and positioning of spindles and turrets allows for simultaneous machining with the motorized milling spindle and both turrets with no risk of collision, enabling process optimization that can reduce cycle times.
For more information contact:
INDEX Corporation
14700 North Pointe Blvd.
Noblesville, IN 46060
317-770-6300
sales@index-usa.com