MAG Machining Centre For Large Components

The modular HMC 1250/1600 series from MAG is to be showcased at IMTS with an 180,000-position A-axis tilt-spindle for five-axis horizontal machining on large aerospace and energy parts. The HMC 1250/1600 series now includes six spindle options to suit special-purpose or general machining requirements. The 6000rev/min/46kW (61.6hp) tilt-spindle joins an all-around 10,000rev/min/56kW (75hp) spindle, high-speed 24,000rev/min spindle, high-torque 2600Nm/80kW (1918ft/lb) spindle and two live spindles (110mm or 130mm diameter).

The high-torque spindle is especially suited for aerospace titanium cutting, while the live spindles extend W-axis reach by up to 800mm (31.5in), enabling deep cavity milling to high-precision with shorter and more rigid tool lengths. Standard on the live spindle, MAG's exclusive Z-axis thermal compensation software is said to dynamically offset spindle growth to maintain tight tolerances. The HMC 1250 series is engineered for high-precision, high-productivity machining of large aerospace, power generation, pump, valve, and off-road equipment parts.

Designed for application flexibility, the machine offers maximum 3000mm (118in) work-zone swing, 2050mm (81in) work-height capacity and 7000kg (15,400lb) pallet load capacity. Machine components, including the X-bed, Z-bed and column, are cast ductile iron with 1250 x 1600mm pallets, headstock and rotary table housings of gray cast iron. Modular design provides a range of machine travels, 60- to 120-tool magazines and two control choices. The HMC offers 56-80kW (75-107hp) spindle power, 35kN (7870lbf) Z-axis thrust, and rigid, full-contouring hydrostatic rotary table.

The 360,000-position contouring table provides a rigid work platform, while a rugged worm gear drive with clamp securely holds axis position. Rotary table positioning accuracy is 10 arc seconds, repeatable to five arc seconds. Positioning accuracy of the tilt-spindle is four arc seconds, repeatable to two arc seconds. The HMC series comes standard with linear scale feedback in X-, Y- and Z-axis, providing eight micron (0.0003in) positioning accuracy and five micron (0.0002in) repeatability.

Heavy-duty hardened and ground roller guide-ways enable a rapid traverse rate of 40m/min (1575in/min) with high acceleration/deceleration rates, double the load capacity and nearly 10 times the wear life of ball-type ways. The full work-zone enclosure on the machine is pre-engineered for mist collection and includes a doorway for operator access with walkway/platform inside.

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