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Spindle Spotlight
Exploring the core of the Mother Machine
Mother Machine
Reliability, Power and Accuracy

Exploring the core of the Mother Machine

At the very core of every Yasda Mother Machine lies the spindle — the true engine of performance and precision. It’s not just a component. It’s the heart that keeps everything running to the highest standard.

So, what makes a Yasda spindle so unique?

  • It handles both heavy-duty cutting at low speeds and high-speed machining with extreme accuracy — all while minimizing heat generation.
  • This is achieved through a self-adjusting preload mechanism: at low speeds, the spindle applies high preload for stability. As speed increases and the spindle heats up, preload optimised automatically — ensuring consistent performance and preventing the bearing burn.
  • This intelligent system allows the machine to tackle hardened steel rough machining, high-speed operations for fine finish, and high-precision helix milling, even under reverse-thrust conditions.

To maintain thermal stability, cooling oil circulates through the spindle and spindle motor — the main heat-generating parts of the machine — allowing stable precision across the full speed range.

The dual-coil spindle motor supports both high-speed rotation and high-torque, low-speed cutting. Meanwhile, its slim nose design ensures optimal access to complex workpieces in case of 5-axis complex machining.

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