DMG Mori launches travelling-column VMC

DMG Mori has added a four/five-axis travelling-column machining centre with a working volume of more than 4.6 m³ to the upper end of its swivelling-spindle-head DMF range. The machine is suitable for integration into a user’s digital infrastructure and is compatible with the manufacturer’s exclusive technology cycles, such as in-cycle gear skiving or grinding.

Compared with the previous model (superseded), the DMF 400|11 is nearly one-third larger in capacity and 20% stiffer to enable more precise, vibration-free operation. An optional partition wall creates two separate workspaces for pendulum machining, allowing set-up of the next workpiece while the previous part is in production.

Stable machining performance is largely a result of a massive cast-iron bed and three cooled linear guideways in the X axis over which the column moves. In a double ballbar test, the DMF 400|11 achieves an accuracy of 5 µm, making the machine suitable for producing large moulds, dies and tools, as well as precision structural parts within the machine’s 4000 x 1100 x 1050 mm working envelope.

The fixed table accepts components weighing up to 8 tonne for the three- or four-axis machining of large components. Users can opt to integrate one or two flush rotary C-axis tables for fully interpolative five-axis machining, each capable of supporting components weighing 1200 kg, while a torque table option is available for demanding mill-turn applications. An add-on table as an A axis with a load capacity of 500 kg is a further option.

The ±120° B axis houses an integrated 15,000 rpm SpeedMaster spindle as standard but is available in a 20,000 rpm version or as a 12,000 rpm PowerMaster spindle having higher torque at 288 Nm.

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