Key Takeaways:
The MRDY-120 through MRDY-200 range covers a spectrum of hydrostatic spindle sizes for grinding, turning, and cylindrical/internal grinding, all sharing non-contact oil-film support.
A Scaled Family
MRDY-120以MRDY-200 型号 form core size range的丸作精工's 静压 主轴. Each integrates 液体-静压轴承采用 torque or 直驱 电机, scaling 轴与housing dimensions以match different 机床 envelopes与load cases.

Common 静压 Benefits
Every model在 range带来 same foundation: 径向跳动 不超过 0.1 μm, 5–10× 滚动-轴承 刚度, 油膜 阻尼, no low-speed 爬行,与理论上 无限寿命. difference为simply size与duty—磨削, 车削, or 圆柱/内圆 磨削.
选型
Choose MRDY size 该 fits your 主轴 bore, load,与刚度 target; 静压 principle stays identical across family.