Upgrade a Standard or CNC Spindle
A hydrostatic spindle retrofit keeps the original machine bed, feed and control, but replaces the rolling-bearing spindle with a liquid hydrostatic one. The oil film carries radial and axial load with no metal contact, lifting runout, damping and life by an order of magnitude — a cheaper path than buying new.
Variants
- Lathe / grinder / cylindrical-grinder retrofit
- CNC lathe retrofit
- Spindle-unit retrofit
- Motorized hydrostatic spindle retrofit
Typical Post-Retrofit Range
| Item | Typical |
|---|---|
| Radial runout | ≤ 0.1 μm |
| Axial runout | ≤ 0.1 μm |
| Roundness / finish | IT6–IT7, Ra 0.4–0.8 μm |
| Max speed | 3000–24000 rpm |
| Oil temperature | ±0.5℃ class |
| Filtration | ≤ 10 μm |
Process & Advantages
Evaluation → design → build → test → delivery. Gains: precision jump, long life (7×24), thermal stability, and lower cost than a new machine; ISO 9001, multi-language support.
Ask for a Quote
Want to raise a machine's runout? Send model, spindle interface and target speed/accuracy. We return a feasibility assessment.
Related: spindle principle, oil supply, turning instead of grinding.