SPM28 (Crash-proof) Type
The conventional SPM27H is equipped with a crash prevention function "Crash Proof".
We have increased the rigidity of the air bearing compared to conventional models.
Air spindle for precision rotation of disks in disk inspection equipment, etc.
![Air spindle [SPM28 type]](/products/dd-motor/introduction/spindle/img/spm28_im01.gif)
Features
- Crash-proof
- Compact, lightweight, and high speed.
- Class 10 (0.1μm) cleanness.
- Vacuum contact structure at the center of bearing allows for installing workpiece such as disk.
Dimensions
![Air spindle [SPM28 type] Main dimensions](https://wovn.global.ssl.fastly.net/ImageValue/production/64daddcec8e3ce0088973206/en/64daddcec8e3ce0088973206.img.1698835144689.jpg)
Specifications
| Model | SPM28 | |
|---|---|---|
| Air supply pressure used | 0.4MPa (G) | |
| Maximum rotation speed | 20,000r/min | |
| Rotation speed fluctuation *1 | 0.001% or less (Encoder Z phase jitter) |
|
| Non-repetitive rotational runout accuracy (NRRO) |
Radial | 0.005μm or less |
| Axial | 0.005μm or less | |
| Repeated rotational runout accuracy (TIR) |
Radial | 2μm or less |
| Axial | 1μm or less | |
| Rigidity | Radial | 9.5N/μm or more |
| Axial | 33N/μm or more | |
| Load capacity | Radial | 30N or more |
| Axial | 100N or more | |
| Consumption air flow rate | 6Nl/min or less | |
| Motor capacity | 50W (at 15,000r/min) | |
| Cleanliness | Class 10 (0.1μm) | |
| Unbalance amount | 0.05gmm or less | |
| Weight | 2.0kg | |
- *1 Performance in combination with our non-switching driver NS20-A
Contact Information
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