Best fit
For a ER25 installation with water-cooled and 9,000–18,000 rpm. Mounting requirements: Ø110 mm · 352.5 mm overall · 155 mm clamp. Compare these dimensions with the machine before choosing.

GDK SPINDLE · MANUAL
A water-cooled ER25 spindle covering 9,000–18,000 rpm. Consider it when the tooling requirement differs from the ER20 models.
QUICK DECISION
For a ER25 installation with water-cooled and 9,000–18,000 rpm. Mounting requirements: Ø110 mm · 352.5 mm overall · 155 mm clamp. Compare these dimensions with the machine before choosing.
The 110 mm body, 155 mm clamping length and 352.5 mm overall length need to fit together. Keep the 249–380 V drive curve separate from winding selection.
The GDK105 range model uses ER20 and reaches 21,000 rpm; the interface and operating range both change.
Compare the differences →SPECIFICATIONS
The documented configuration uses ER25 tooling and water-cooled. Output: 2.2 kW rated. Operating speed: 9,000–18,000 rpm. The drawing lists 110 mm body diameter, 155 mm clamping length, 352.5 mm overall length, 16 kg weight.
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| Output and duty | |
|---|---|
| Rated power (kW) | 2.2 |
| Operating range (rpm) | 9,000–18,000 |
| Tooling and mounting | |
| Tool interface | ER25 |
| Tool change | Manual tool change |
| Electrical | |
| Rated current (A) | 6 |
| Frequency range (Hz) | 150–300 |
| Curve voltage endpoints (V) | 249–380 |
| Dimensions and weight | |
| Body diameter (mm) | 110 |
| Overall length (mm) | 352.5 |
| Clamping length (mm) | 155 |
| Weight (kg) | 16 |
| Cooling and feedback | |
| Cooling | Water-cooled |
INSTALLATION CHECKS
Start with the exact GDK110-9-18Z/2.2-4.4 configuration. Compare the mounting drawing, nose clearance and connection locations with the existing installation. Check the collet, nut clearance and usable clamp area before reusing tooling or supports.

COMPARE RELATED SPINDLES
These models illustrate different interfaces and installation requirements. Check each drawing before choosing.
Scroll across to compare columns. Keyboard: focus the table area and use the left/right arrow keys.
| Model | Power / duty | Speed | Interface | Cooling | Key difference |
|---|---|---|---|---|---|
| GDK110-9-18Z/2.2-4.4Current configuration | 2.2 kW rated | 9,000–18,000 rpm | ER25 | Water-cooled | Ø110 mm · 352.5 mm overall · 155 mm clamp |
| GDK105-9-21Z/2.2-5.0 | 2.2 kW rated | 9,000–21,000 rpm | ER20 | Water-cooled | Ø105 mm · 344 mm overall · 155 mm clamp |
| GDK100-12-24Z/2.2-4.4 | 2.2 kW rated | 12,000–24,000 rpm | ER20 | Water-cooled | Ø100 mm · 295 mm overall · 140 mm clamp |
| GDK100-24Z/3.2 | 3.2 kW rated | 24,000 rpm rated | ER20 | Water-cooled | Ø100 mm · 295 mm overall · 140 mm clamp |
| GDK105-21Z/3.5 | 3.5 kW rated | 21,000 rpm rated | ER20 | Water-cooled | Ø105 mm · 312 mm overall |
DOWNLOADS
No standalone PDF is listed for this configuration. Use the full-size drawing above and include any document requirements in your inquiry.
For CAD or additional installation drawings, include the exact model and configuration in your inquiry.
MODEL QUESTIONS
This configuration combines ER25 tooling, 9,000–18,000 rpm and Ø110 mm · 352.5 mm overall · 155 mm clamp. Keep the complete code when comparing drawings.
Include the existing nameplate, mounting dimensions, required ER25 tooling, drive details and cooling arrangement. The GDK105 range model uses ER20 and reaches 21,000 rpm; the interface and operating range both change.
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