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DMC 75Vlinear provides ultra-short positioning times
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May 2008
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The Deckel Maho DMC 75Vlinear vertical machining centre, able to provide full 5-axis simultaneous machining cycles, has the advantage of ultra-short positioning times through the use of linear drive systems in each of its three main axes capable of accelerations of 2 G up to the ultra high speed 90 m/min rapid traverse rate. The machine has axis travels of 885 mm in X and 600 mm in both Y and Z. With such quick positioning movements, significant productivity improvements can be gained when carrying out 3D machining cycles involving repositioning between each pass or movement to a new feature to be produced on the component.
The DMC 75linear machine is constructed using a heavy duty cast iron gantry that supports both X- and Y-axis movements. Carried on the gantry is a B-axis fork-head arrangement driven by torque motor that provides a -10 deg to +110 deg swing with hydraulic clamping in its programmed position.
The bi-lateral mounting of the spindle ensures high levels of mechanical stability and through absolute positioning, integrates with a 360 deg NC rotary table that has a working surface of 750 mm diameter and will hold parts weighing up to 800 kg.
The direct drive HSK-A63 spindle has a 46 kW, 18,000 rpm specification as standard that will deliver some 130 Nm of torque with further options of 55 kW, 28,000 rpm unit with 47.5 Nm of torque or a high speed 13 kW, HSK-E50 spindle that will run to 42,000 rpm.
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Author
Celia Cadwallader
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