Technical Description
The WILLEMIN-MACODEL 308B is a high-precision 5-axis vertical machining center designed for complex, small-dimension workpieces, especially in demanding materials such as titanium, cobalt-chrome, ceramics, and precious metals. It features a vertical spindle with an HSK-E32 taper, delivering up to 30,000 RPM (optional up to 50,000 RPM), powered by a 4 HP motor rated for 30 minutes, enabling high-speed, high-accuracy milling operations. The machine includes a 28-position automatic tool changer (ATC) with rapid tool change times of 1 second and chip-to-chip times of 3 seconds. Axial travels are 6.3" (X), 4.72" (Y), and 5.91" (Z), with rapid traverse speeds of 1,181 inches per minute across linear axes. Rotary axes provide full 360° rotation on A and 130° on B, supporting intricate 5-axis movements for complex geometries. The kinematic chain and direct-drive rotary axes ensure high rigidity and thermal stability, crucial for precision machining. The 308B supports high productivity with integrated features like pallet recognition, fire protection, auto fire suppression, and mist extraction systems. It employs a Fanuc 31i-B5 CNC controller and can integrate into robotic cells for automation. Its compact footprint and stable design deliver excellent repeatability, surface finishes, and dimensional accuracy required in cutting-edge industries. The machine’s HSK-E32 spindle interface offers low vibration and superior clamping reliability for tooling, contributing to spindle life and process stability. Overall, the 308B balances speed, precision, and flexibility for advanced 5-axis machining applications in hard-to-machine materials.
