Key Takeaways:
Upgrading an existing precision machine with a hydrostatic spindle can recover lost accuracy and extend service life—if the machine structure and oil supply are planned together.
Breathing New Life Into Old Iron
A well-制造 机床 frame often outlasts its 滚动-轴承 主轴. Replacing worn 主轴采用 静压 一 can restore sub-micron 径向跳动与增加 理论上 无限寿命 without buying new 机床.

What Retrofit Needs
- Structural assessment: frame must be rigid enough以exploit 主轴's 刚度.
- 供油: pump station, filtration以NAS 5,与temperature control must be added or accommodated.
- Interface: mounting, encoder feedback,与drive 集成 matched以 existing 数控.
When It Pays
For 精度 grinders与lathes采用sound structures, 静压 retrofit为often far cheaper than new 机床 and带来 larger 精度 jump than any 滚动-轴承 replacement could.