Rugged Bridge Mill Tackles High-Speed Net Shape Machining

The Hi-Net DMC-1500HN by Johnford is ideal for mold/die shops and aerospace manufacturers wanting speed, rigidity and precision in a competitively-priced, double-column machining center.

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The Hi-Net DMC-1500HN by Johnford is ideal for mold/die shops and aerospace manufacturers wanting speed, rigidity and precision in a competitively-priced, double-column machining center. Absolute Machine Tools, Inc. (Lorain, OH) offers this 33,000-pound heavyweight bridge mill, which is specifically engineered for high-speed net shape machining of complex 3-D parts. Solid machine construction is key to the Hi-Net DMC-1500HN’s performance. Built tough, the DMC tackles a variety of materials at high feedrates and with a high degree of accuracy. It boasts heavy Meehanite castings that provide the strength and vibration dampening required for excellent surface finishes and exceptionally long cutting tool life. The columns and bridge are a one-piece casting for the best rigidity. A massive Z axis head and Y axis saddle feature square box ways and diagonally arranged ribs to minimize distortion caused by years of continuous service. The Hi-Net DMC-1500HN features a moving table/fixed column design that provides maximum rigidity. The bridge mill delivers XYZ travels of 59” X 35” X 30” and rapid rates of 944”-944”-590” in X, Y, and Z. The rugged and rigid machine handles table loads up to 10,120 pounds. Weiss integral spindles are standard equipment. The machine’s standard 15,000-rpm HSK-100A spindle delivers 56-hp and 300 ft-lb of torque—at just 1,000 rpm—for heavy cutting and fine finishing. For medium roughing and even finer finishing, a 24,000-rpm HSK-63A spindle delivers 31-hp and 53 ft-lb of torque at 3,000 rpm. An 18,000-rpm grease packed HSK-63A spindle is also available for medium roughing and fine finishing. This spindle provides 30-hpP and 85 ft-lb of torque at 2,400 rpm. The standard Fanuc 18iM-B with all new alpha I series servo motors and AI NANO HPCC is standard for high speed, high accuracy machining.