C.R. Onsrud Inc. 429G - PRO SERIES VERTICAL MACHINING CENTER

Technical Description

This vertical machining center features a large work table measuring 429" in length and 61" in width, designed for substantial workpieces though without dedicated support for index or rotary tables. The spindle, oriented vertically, utilizes an HSK 63F taper, achieving a high maximum speed of 24,000 RPM and delivering 18 HP with a 30-minute rating, suited for high-speed precision machining. The tooling system includes a 12-tool automatic tool changer (ATC) for efficient machining operations, though no pallet changer is integrated. The machine operates on a 3-axis system with an option to expand to 4 axes, covering extensive travel distances of 441" in X, 78" in Y, and 11" in Z, each axis capable of a max feed rate of 2,500 ipm and rapid traverse speeds of up to 3,500 ipm, enabling rapid and precise movement. The spindle's high RPM combined with the rigid HSK 63F taper supports applications requiring fast tool changes and accuracy, particularly in woodworking, aluminum, and plastics, benefiting from the spindle’s stiffness and dynamic performance. This setup is optimized for large-format precision milling, drilling, and cutting tasks requiring significant travel range and high rotational speeds, while the ATC facilitates workflow efficiency. However, the absence of pallet and rotary table support indicates it is best suited for large, fixed setup machining rather than complex multi-fixture or indexed rotary operations.