**English Translation:**

In automotive electronics manufacturing, the PCB depaneling process for Body Electronic Control Units (ECU) demands exceptionally high precision, efficiency, and stability. To achieve accurate separation of multi-panel boards into individual units, dedicated depaneling machines combined with high-performance electric spindles have become the standard configuration.

This article analyzes the application advantages of the Nakanishi electric spindle NR3060-AQC + motor EM-3060J in PCB perforation cutting based on actual case studies.

**I. Processing Conditions Overview**

*   **Electric Spindle:** NR3060-AQC + EM-3060J

*   **Processing Machine:** Dedicated machine

*   **Tool:** Custom router bit, blade diameter φ1.5 × 6.5mm

*   **Workpiece:** PCB (Glass epoxy), thickness 1.2 mm

*   **Rotational Speed:** 50,000 min⁻¹

*   **Feed Rate:** 7.0 mm/sec (F420)

**II. Analysis of Core Advantages**

1.  **High-Speed Stability, Suitable for Small-Diameter Tools**

    Small-diameter tools require high rotational speeds. The NAKANISHI electric spindle provides stable, high-speed output, ensuring clean cut cross-sections and controllable burrs, meeting the demands of precise depaneling.

2.  **Pneumatic Tool Change, Improving Cycle Efficiency**

    The NR3060-AQC features a pneumatic tool change function, significantly reducing tool replacement time and enhancing overall production line throughput.

3.  **Easy Cleaning and Maintenance**

    The spindle structure facilitates the removal of debris generated during cutting, reducing maintenance costs and extending the operational lifespan.

**Conclusion**

In automated automotive electronics production lines, the quality of PCB depaneling directly impacts subsequent assembly processes and overall reliability. Leveraging its high-speed performance and mature structural design, the NAKANISHI electric spindle provides an efficient and stable solution for Body ECU depaneling processes.