Citizen Miyano BNE-65ATC

The Citizen Miyano BNE-65ATC is a large-capacity fixed-headstock CNC lathe with an automatic tool changer (ATC), designed for complex parts up to 65mm bar diameter that require more tooling variety than a standard turret can provide. The ATC distinguishes the BNE-65ATC from conventional turret lathes—where a 12-station turret limits tool count, the ATC system provides access to a much larger tool magazine, enabling complex multi-feature parts to be completed in a single setup without tool compromise.

The BNE-65ATC features a powerful main spindle reaching 4,500 RPM with an 11-15 kW motor, delivering the torque needed for productive cutting at the 65mm bar diameter in steel, stainless steel, and alloy materials. The sub-spindle enables back-end operations for complete part processing, and Y-axis capability allows off-centerline milling features. Live tooling at up to 6,000 RPM handles drilling, tapping, and milling operations within the turning cycle.

The automatic tool changer is the machine's signature capability. Rather than being limited to 12 turret positions, the BNE-65ATC can access 20-40+ tools from its magazine, dramatically expanding the range of features that can be machined in a single setup. This is particularly valuable for complex parts with numerous drilled holes, multiple thread sizes, and varied milling features—parts that would normally require tool changes mid-cycle or compromise tooling selections on a standard turret lathe.

Citizen's Miyano construction delivers the thermal stability and rigidity expected of the brand at this larger capacity. The box-way construction handles the higher cutting forces at 65mm bar diameter without vibration issues, and the thermally symmetric design maintains accuracy across extended production runs. The Mitsubishi M80 control manages the ATC tool change sequence and multi-axis coordination.

The BNE-65ATC fills a unique niche—it's a turning center with the tooling flexibility of a machining center. For shops producing complex parts with 15-30+ different tools per part, the ATC eliminates the need to split operations across multiple machines or accept suboptimal tooling selections due to turret position limitations.