At FUMAK, we specialize in CNC spindle repair, refurbishment, and maintenance. Recently, we serviced a Fischer AES-72X250 ICAP spindle, which arrived with significant issues such as excessive play and 0.1 mm runout. Left unresolved, these problems can seriously affect machining precision, tool lifespan, and machine productivity.
Spindle Runout Problem – Causes and Consequences
Runout and play in high-speed spindles usually occur due to:
- 🔹 Worn or damaged spindle bearings,
- 🔹 Improper lubrication or overheating,
- 🔹 Imbalance caused by long-term operation,
- 🔹 Mechanical wear in the clamping system.
A 0.1 mm runout is considered severe in precision machining. It leads to:
- Reduced accuracy in CNC milling and drilling,
- Poor surface finish and dimensional errors,
- Faster tool wear and higher operating costs,
- Risk of machine downtime due to tool or spindle failure.
Our Repair Process – Fischer AES-72X250 ICAP
During the repair of this Fischer spindle, we performed the following steps:
1. Detailed Diagnostics
We confirmed the issue of spindle play and measured runout at 0.1 mm.
2. Bearing Replacement
All worn bearings were replaced with new, high-quality precision bearings to restore smooth performance.
3. Dynamic Balancing
The spindle was dynamically balanced to eliminate vibrations and ensure stable, high-speed operation.
4. Initial Run-In Procedure
After assembly, the spindle was carefully run-in under controlled conditions to verify performance and prevent premature wear.
Results of the Spindle Repair
After our service, the Fischer AES-72X250 ICAP spindle achieved:
- ✅ Zero play and factory-level runout values,
- ✅ Smooth operation at speeds up to 16,000 rpm,
- ✅ Extended service life thanks to new bearings and precise balancing,
- ✅ Improved machining accuracy and reliable long-term performance.
Why Choose FUMAK for CNC Spindle Repair?
- 🔧 Experience with leading spindle brands including FISCHER, HSK, GMN, KESSLER, and others,
- 🔧 Full bearing replacement, balancing, and refurbishment service,
- 🔧 Fast turnaround to minimize machine downtime,
- 🔧 Service available for clients in Poland and across Europe.
Contact Us
If your spindle shows signs of runout, vibration, or bearing noise – don’t wait until it fails completely.
👉 Contact FUMAK today for professional spindle repair and refurbishment services.