Bridge mill
Staff -- Plant Engineering, 2/1/2007
The Hi-Net DMC-1500HN is suitable for aerospace manufacturers and mold/die shops wanting speed, rigidity and precision in a double-column machining center. The 33,000-pound heavyweight bridge mill is engineered for high-speed net shape machining of complex 3D parts. It can handle a variety of materials at high feedrates, and has heavy castings that provide strength and vibration dampening. The columns and bridge are a one-piece casting, and the Z-axis head and Y-axis saddle feature square boxways and diagonally-arranged ribs to minimize distortion. The mill features a moving-table/fixed-column design to provide rigidity. A 90-degree bridge with offset Y-axis ways and a wide saddle keep the spindle center line very close to the bridge for additional rigidity. The X-axis table traverse is accomplished via heavy duty Schneeberger roller linear ways for accurate positioning of heavy work pieces. Large diameter, pretensioned ballscrews and servo motors further ensure accurate positioning. The bridge mill delivers XYZ travels of 59 x 35 x 30 inches and rapid rates of 944/944/590 IPM in X, Y and Z. The machine handles table loads up to 10,120 pounds.
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