Technical Description
The Starrag NB 151 is a high-precision horizontal machining center designed for advanced manufacturing applications, particularly in the aeronautics sector. Featuring a robust 5-axis configuration with X, Y, and Z-axis travels of 25.6", 25.6", and 26.8" respectively, the NB 151 delivers exceptional versatility and accessibility for complex multi-blade components such as blisks, impellers, diffusers, and nozzle guide vanes. The machine is powered by a 37.6 horsepower spindle capable of reaching up to 18,000 RPM, ensuring high-speed machining and efficient material removal rates. Equipped with an HSK-A63 (A80) taper, the NB 151 supports secure tool holding and optimal performance during demanding operations. Its CNC control system, based on Siemens 840D technology, provides precise and reliable operation, enabling adaptive machining strategies and seamless integration into automated production environments. The NB 151’s kinematic concept is optimized for process stability, minimizing rotating masses to enhance machine dynamics and reduce cycle times. Advanced features include direct measurement and compensation for spindle expansion due to thermal drift or centrifugal forces, ensuring consistent accuracy and dimensional integrity. The machine’s design eliminates restrictive elements like quills, allowing for unrestricted access and higher process stability. With a maximum workpiece diameter of 620 mm, a length of up to 290 mm, and a weight capacity of 300 kg, the NB 151 is well-suited for machining large, intricate parts from materials such as titanium, nickel-based superalloys, and blade steels. Its CE-compliant safety concept and efficient tool change system further enhance productivity and operational reliability.
