Nakamura-Tome NTR Series

In a conventional CNC lathe, the spindle is fixed and the cutting tool moves. In a Swiss-type (sliding headstock) lathe, the spindle and bar move axially (Z-axis) while the guide bushing remains stationary, supporting the bar very close to the cutting point. This arrangement dramatically reduces bar deflection during cutting, enabling long, slender parts to be machined with tight tolerances that would be impossible or impractical on a fixed-headstock machine.

Yes, many NTR configurations offer a guide bushing-less option. Without the guide bushing, the machine functions more like a conventional fixed-headstock lathe but retains the multi-axis tooling arrangement. Bushing-less operation is preferred for shorter, thicker parts where the bushing clearance would waste material on the remnant stub, and for materials that are difficult to guide accurately.

Citizen Machinery (formerly Citizen Cincom) is widely considered the market leader in Swiss-type machining with the deepest application library, most extensive tooling ecosystem, and largest installed base. The Nakamura-Tome NTR brings similar precision engineering and NT Smart Machining technology but with less Swiss-specific history. Shops with existing Citizen infrastructure and programming knowledge may prefer Citizen for compatibility; shops open to alternatives may find the NTR competitive on price-performance.

The NTR handles stainless steel, titanium, Inconel, cobalt-chrome, brass, aluminum, and most engineering plastics routinely encountered in medical, aerospace, and industrial applications. The guide bushing support is particularly beneficial for difficult materials like titanium and Inconel that generate high cutting forces and would cause deflection on unsupported long-reach cuts.

The NTR is designed to run from a bar feeder as the primary material loading method. Compatible bar feeders from LNS, IEMCA, and other brands load bar stock automatically. A parts catcher or conveyor on the sub-spindle side catches completed parts. With these accessories, the NTR can run unattended for extended periods, making it suitable for lights-out production of high-volume part families.