BMS Spindle Service

+48 505 909 717
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+48 505 909 717
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+48 505 909 717

Spindle removal and installation
of CNC spindles and electrospindles

Spindle removal and installation – minimizing risk, maximizing precision.
Professional spindle disassembly and reassembly are key stages of any service intervention. Improper handling can lead to misalignment, tool holding issues, or permanent spindle damage.

At BMS Spindle Service, we perform safe removal and installation of spindles and electrospindles in CNC machines – both during scheduled replacement and repair operations. Each step is preceded by thorough diagnostics, and final assembly is carried out with the highest precision and calibration procedures.

Thanks to the experience of our technicians and our technical facilities, we guarantee short downtimes, optimal spindle-to-machine fitting, and stable machining performance after installation.

Why proper spindle installation
is essential for precision and machine longevity

The spindle is one of the most critical components of a CNC machine – its precise installation directly affects the accuracy of the entire production. Even minor installation errors can lead to costly breakdowns and quality issues.

Improper spindle installation or removal can result in:

  • Damage to bearings and spindle taper – excessive axial forces or incorrect seating accelerate wear.
  • Spindle geometry errors – causing tool clamping issues and loss of alignment.
  • Vibrations and noise during operation – negatively affecting machining quality and component durability.

Professional spindle removal and installation ensure smooth, quiet, and precise machine operation – without the risk of damage and with full compliance to the machine’s technical parameters.

Spindle and electrospindle removal and installation

CNC spindle removal and installation
step by step

Each spindle removal and installation at BMS Spindle Service is carried out according to a systematic, multi-step procedure that adheres to the highest safety standards. This ensures precise alignment of the spindle with the machine, eliminating the risk of damage, misalignment, or failure during operation.

1. Initial inspection and diagnostics

We start with a thorough assessment of the spindle condition, its bearings, and the machine interface. This helps us identify the root cause and select the safest disassembly method. Any signs of wear, overheating, or misalignment are documented.

2. Machine safety and power disconnection

We disconnect all power sources and secure the work area to protect both the technician and the machine. The machine is stabilized to prevent any unintentional movement during the procedure.

3. Precision spindle removal

Using dedicated equipment and properly calibrated tools, we carefully remove the spindle from the machine with surgical precision. This minimizes the risk of damage to the taper, spindle nose, or mounting flange.

4. Cleaning and preparing the mounting socket

After removing the spindle, we thoroughly clean the mounting socket from dust, chips, grease, and other contaminants. The surface is also checked for corrosion or wear that could affect reinstallation quality.

5. Installation of a new or refurbished spindle

Whether we install a new or refurbished spindle, the entire process is carried out in accordance with the manufacturer’s documentation. We carefully connect all mechanical and electrical interfaces.

6. Torque and tolerance verification

We verify whether the spindle has been installed using proper tightening torques and within acceptable tolerance ranges. This step is crucial for bearing durability and machining precision.

7. Test runs and calibration

The spindle is tested under low and high RPMs to detect vibrations, noise, or runout. We calibrate the tool clamping system and, if necessary, perform additional spindle balancing or balancing of the entire drive assembly inside the machine using a mobile balancing unit.

8. Final quality inspection

After completing all tests, we generate a final report that includes test results, runout analysis, and final recommendations. Only after a positive verification is the spindle approved for further use.

Installation of HSD electrospindle after service in a CNC machining centerRefurbishment and installation of HSD spindle with service documentationSpindle installation in DOOSAN machining center after service

Most common spindle removal and installation problems
and how we solve them

Loss of clamping force after installation

Improperly seated components may reduce tool stability.

Solution – We verify clamping force and adjust spindle parameters.

Geometry issues after installation

Incorrect spindle alignment leads to poor tool clamping and loss of accuracy.

Solution – We perform full calibration and alignment tests – spindle geometry alignment.

Frequently
asked questions

Yes, it is technically possible to replace a spindle yourself, but we strongly recommend using qualified technicians.
The standard time required for removal and installation is 1 business day.
You may notice vibrations, noise, weak tool clamping, and dimensional inaccuracies in machined parts.
Yes! Calibration ensures full machining stability and precision.
Installation and removal of HSD ES 919 spindle during servicingGeometry alignment after CNC spindle installation and removalClamping force measurement after spindle installation in DOOSAN machine

Safe spindle removal and installation
with guaranteed precision

Entrust the spindle removal and reinstallation to experienced technicians – ensuring proper alignment, cleanliness, and machine safety.

  • Professional handling of all spindle types

  • Minimized risk of damage

  • Service available across all of Europe

CONTACT

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