Johnford - Roundtop Machinery Company DMC-1200HN VERTICAL MACHINING CENTER

This CNC vertical machining center features a robust work table measuring 51.2" x 33.5", designed to support workpieces up to 8,360 lbs, enabling heavy-duty machining of large components. It operates on three linear axes (X, Y, Z) with travels of 48", 36", and 30" respectively, each capable of rapid traverse speeds up to 944 inches per minute and maximum feed rates of 472 inches per minute, ensuring efficient material removal and high throughput. The vertical spindle is equipped with an HSK-63A taper, providing high-speed machining capability up to 24,000 RPM (with an optional spindle speed of 18,000 RPM). The spindle motor is rated at 31 HP for a 30-minute duty cycle, with an optional upgrade available to 56 HP, supporting demanding cutting conditions and enhanced productivity. Tool management is optimized by a 24-tool automatic tool changer (ATC) standard system, with an optional expansion to 120 tools, minimizing downtime for tool changes. The ATC chip-to-chip time is effectively zero seconds, accelerating sequencing during complex part machining. This machining center is ideal for heavy, precision milling tasks in aerospace, automotive, and industrial manufacturing environments. Its advanced spindle taper system with HSK-63A tooling offers superior rigidity and accuracy for high-speed operation, while the large table and high load capacity accommodate a broad range of part sizes and weights. The synergy of rapid traverse rates and powerful spindle output supports high-efficiency machining of large, complex workpieces.