NOMURA AUTOMATIC NN-20UB7 HORIZONTAL MACHINING CENTER

Technical Description

The Nomura Automatic NN-20UB7 is a high-precision horizontal machining center designed for complex turning and milling operations with a maximum main and sub spindle turning diameter of 0.790 inches and turning length of 7.870 inches. It features two main spindles, each delivering up to 10,000 RPM and 5 HP, and a sub spindle rated at 6,000 RPM with 1 HP. The machine supports simultaneous single-tool cutting across up to six controlled axes, with rapid traverse rates for X, Y, and Z axes at 551 inches per minute over travels of 4.740", 8.000", and 8.000" respectively. The primary tool carrier uses a slide configuration accommodating up to five turning tools and four rotary tools, each rotary tool driven by a 1 HP motor capable of speeds up to 6,000 RPM. A secondary back slide carrier allows an additional four turning tools and rotary tooling, enhancing operational versatility. Milling and drilling functions integrate standard ‘C’ and ‘Y’ axis control for off-center machining, with secondary milling/drilling capabilities both on-center (standard) and optionally off-center. The machine is engineered for high rigidity and stability, enabling precise machining of difficult materials and fine surface finishes typical of Swiss CNC turning machines. The Nomura NN-20UB7’s robust design promotes extended tool life, reduced cycle times, and efficient multi-axis operations, ideal for precision components in automotive, medical, and aerospace industries. Its configuration allows complex part production in a single automated setup, minimizing downtime and maximizing throughput.