C.R. Onsrud Inc. 290E - EXTREME DUTY SERIES VERTICAL MACHINING CENTER

Technical Description

This vertical machining center features a robust table measuring 60.000 inches in length and 290.000 inches in width, providing extensive work support for large or multiple workpieces. The machine is equipped with a high-speed vertical spindle utilizing an HSK 63F taper, capable of reaching up to 24,000 RPM and delivering 18.00 HP at a 30-minute rating, ensuring efficient and precise material removal for demanding applications. Tooling is managed by a 12-station automatic tool changer (ATC), allowing for rapid tool changes and increased productivity. The machine supports three primary axes (X, Y, Z) with optional fourth-axis capability, offering flexibility for complex machining operations. Axis travels are 82.000 inches on X, 380.000 inches on Y, and 12.000 inches on Z, accommodating a wide range of part sizes. Maximum feed rates for all axes are 4,000 inches per minute, while rapid traverse speeds reach 5,600 inches per minute, enabling swift positioning and reduced cycle times. The design incorporates linear guides for high precision and rigidity, supporting accurate and repeatable machining. The absence of a pallet changer and index or rotary table indicates a focus on straightforward, high-volume production or large-part machining without the need for automated part handling or rotary positioning. This configuration is ideal for industries requiring high-speed, high-accuracy milling of large components, such as aerospace, automotive, and mold making.