- Introduction
- Feedback
NAC piezo amplified actuators are very suitable for systems that require lighter actuators with temperature stability and high resonance frequencies. The unique structure makes the actuator more compact.
Characteristics
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Appearance 
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Stroke vs Voltage 
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Load Capacity Curve 
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Principle NAC piezo amplified actuators are based on four piezo stacks, in pairs connection. Each piezo stack is hinged at its end at a small angle. When the voltage applied to one pair of piezo stacks increases, the other pair voltage on the piezo stack decreases. This facilitates the movement of the output member in one direction. Be aware that in the case of free displacement, the tension in the piezo stack and the tensio member remain almost constant. This means that the strain is directly derived from the piezo stack to the output. In addition, the structure will not withstand high bending forces, because it is not easy to fatigue. |
Principle 
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Temperature Stability
Generally, when the temperature changes, the different thermal expansion between the ceramic and the material of the structural component will result in a change in the force distribution. This will result in a change in internal preload. However, the NAC piezo amplified actuators will not cause changes in output displacement due to changes in temperature.
| Technical Data | ||||
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Type |
NAC2641 |
NAC2643 |
NAC2645 |
Unit |
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Wide W×Leight L |
14×70.5 |
14×102.4 |
14×134.2 |
mm±0.1 |
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Height H1/H2 |
26.1/24.2 |
28/24.2 |
29.5/30.6 |
mm±0.1 |
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Operating voltage |
200 |
200 |
200 |
V |
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Displacement |
±150 |
± 312.5 |
±475 |
μm±15% |
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Stiffness(in the middle position, up to 250N) |
1.3 |
0.9 |
0.7 |
N/μm±15% |
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Blocking force |
0.25 |
0.25 |
0.25 |
kN |
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Mass |
84+60（引线） |
122+60 |
160+60 |
g±10% |
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Unloaded resonant |
1700 |
1100 |
850 |
Hz |
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El. capacitance |
2*3.6 |
2*6.5 |
2*10 |
μF±15% |
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Operating temperature |
-20~+150 |
-20~+150 |
-20~+150 |
℃ |
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Piezo · Nano · Motion
