Piezo Sonic Motor Piezo Sonic Corporation

・medical device manufacturer
・Semiconductor manufacturing equipment manufacturers
・optical equipment manufacturer
・robot manufacturer
・Analytical and chemical equipment manufacturers

The Piezo Sonic motor is particularly effective in situations where "high-precision positioning," "non-energization," "magnetic field environment," and "quietness" are required, which are difficult to meet with conventional servo motors and stepping motors.

・Position can be maintained even when the power is turned off.
In general motors, the shaft moves when the power is turned off, but the Piezo Sonic motor has a high holding force even when the power is not applied due to the frictional force, and the attitude can be maintained without adding a brake or clutch.


・Compact, lightweight yet high torque
It has low speed and high torque characteristics compared to motors of the same size, and can be driven gearless.


・zero backlash
No backlash due to direct drive structure without using gears.


・Can be used in magnetic field environments
Since it does not use coils or magnets, it can be used in MRI and high-magnetic field environments.


・Quiet
No magnetic noise or gear noise typical of electromagnetic motors, achieving quiet driving.


・High precision positioning is possible.
Since inertia is small and it can stop immediately after stop command, it is suitable for precise positioning.

・Achieving longer service life
The life of conventional ultrasonic motors has been improved by optimizing materials and structures.