Mill turn centre

News

Three years of research and development at Mori Seiki have culminated in the launch of the company's new NT series of integrated mill turn centres.

Three years of research and development at Mori Seiki  have culminated in the launch of the company's new NT series of integrated mill turn centres, which are a combination of the company’s NH series horizontal machining centres and its NL series of lathes.

The new range incorporates Mori Seiki’s DCG technology, using two in house manufactured ballscrews on both the X and Z axes. The resulting vibration reduction makes 50m/minute rapid feed rates possible combined with accelerations of up to 0.8G and metal removal rates of 550cc/min.

The machine structure draws on the ‘box in box’ construction of the NH series, resulting in a particularly rigid and massive design. The Y axis uses an octagonal cross section, 400mm across flats, fitting into a V shaped slideway.

From dynamic analysis, Mori Seiki engineers found this shape provided the optimum stiffness for supporting the direct drive motors for the B axis and the spindle. This permits heavy cuts to be taken with the milling head.

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