Johnford - Roundtop Machinery Company DMC-4100PHN VERTICAL MACHINING CENTER

This high-performance vertical machining center features a robust table measuring 165.3 inches in length by 80.0 inches in width, capable of supporting workpieces up to 22,000 lbs. The spindle is equipped with an HSK-63A taper, ensuring secure and precise tool retention for demanding machining operations. The spindle delivers a maximum speed of 24,000 RPM, with an optional configuration supporting up to 18,000 RPM, and is rated for 31 HP (30-minute rating), with an optional upgrade to 56 HP for enhanced cutting power. Tooling is managed via an automatic tool changer (ATC) with a standard capacity of 24 tools, expandable to 120 tools for increased flexibility. Tool change chip-to-chip time is optimized for efficiency, minimizing non-cutting intervals. The machine operates on three linear axes (X, Y, Z), providing extensive travel ranges: X-axis up to 161.0 inches, Y-axis up to 90.0 inches, and Z-axis up to 32.0 inches (with an optional extension to 42.0 inches). All axes support a maximum feed rate of 315 inches per minute and rapid traverse speeds of 472 inches per minute, ensuring fast and accurate positioning. The HSK-63A taper is precision-ground to meet high standards for spindle contact, maximizing rigidity and repeatability. This configuration is ideal for heavy-duty milling, high-speed machining, and complex part production in industrial environments.