New 5-Axis Turn Mill for Small, Complex Parts

Index Corp. announced June 16 the launch of its G160 5-axis turn mill for machining small, complex parts. The G160 is the latest product in Index Corp’s G Series of turn mills, and the company said it is specifically designed for machining complex parts with one setup. Index says it plans to debut the machine at IMTS 2026.

The G160 is built on a rigid, vibration-damping machine bed and uses a main and counter spindle with an extra Z-axis. The device available in one of two spindle bar clearances, 1.64”/42mm or 2.56”/65mm. The 1.64” version, Index says, can produce 47.9 lb-ft/65Nm of torque and reach a maximum speed of 7,000rpm; The 2.56” clearance generates 125.4lb-ft/170Nm of torque and a top speed of 6,000rpm. Index notes the 1.64” version is “ideal for small parts,” while the higher-torque 2.56” version can accommodate larger chucked parts to a diameter of 6.9”.

An upper tool carrier with a B axis and a direct-drive milling spindle matched to the turning spindles provides the G160’s 5-axis machining capability. The milling spindle uses an HSK-T40 interface: the smaller version produces 12.5lb-ft/17Nm of torque and a top speed of 32,000 rpm, while the larger one produces 21.4lb-ft/29Nm of torque with a top speed of 18,000. Tool magazines are available in 60- or 90-tool capacity, both including a double gripper for changing milling spindle tools.

The G160 uses Siemens Sinumerik ONE as a control system and a UNIMAG 5 interface for connection to Index’s MBL 76 bar loader or third-party equipment. Different available configurations use a linear unit, a donveyer belt, Index’s integrated workpiece handling unit or its iXcenter robotic cell with palletized storage for part transfers.

For more information on the G160 5-axis turn mill, see Index’s website.