Japan, SAN-EI SEIKI SEISAKUSHO CO., LTD.
SAN-EI SEIKI VF Series Rotary vane type Air Motor

Made in Japan
Manufacturer: SAN-EI SEIKI
Model: VF Series
Feature
- This motor can be used in a wide range from medium speed to high speed.
- It is the most widely used motor with the simplest structure.
- This motor is small and lightweight compared to its output.
- The vanes are specially treated to greatly reduce seizure, cracking, abnormal wear, and other characteristics.
- Mounting methods include face, flange, and base.
Structure
The rotor is eccentrically installed in the casing, and vanes that slide in the circumferential direction are inserted in this rotor. Air pressure is applied to the bottom of the vane to seal the tip of the vane and the casing.
Compressed air entering from the air supply port pushes up the vanes and rotates the rotor. The air that has finished working is exhausted to the outside through the primary exhaust port, and the remaining air is exhausted through the secondary exhaust port.

Note
- Be sure to install an air filter and a lubricator (line oiler) in the air supply line.
- Avoid driving for long periods of time at high speeds.
- The minimum practical rpm is 800r.pm. If using below this, select the one with a reduction gear.
Specification Comparison
*When air supply pressure is 0.5 MPa
| model | Output [kw] | Rotation speed [rpm] | Torque [Nm] | Air consumption [㎥/min(nor)] |
|---|---|---|---|---|
| VFR03 | 0.24 | 3200 | 0.73 | 0.38 |
| VF05 | 0.76 | 2800 | 2.60 | 1.1 |
| VF10 | 0.91 | 2600 | 3.35 | 1.5 |
| VF20 | 1.71 | 2300 | 7.10 | 2.3 |
| VF30 | 2.09 | 2000 | 10.0 | 2.6 |
| VF50 | 4.24 | 1800 | 22.5 | 5.4 |
| VF75 | 6.60 | 1400 | 45.0 | 9.0 |
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