The preload structured piezoelectric actuator is a piezoelectric actuator where the multilayer stacked piezoelectric actuator is incorporated into a preload frame. The preload frame allows us to create a different output stroke and block force based on our needs by incorporating several multilayer stacked piezoelectric actuators into a preload frame.

 

Features of the MechaTransRPTK-Series

－Enhancing reliability of the multilayer stacked piezoelectric actuator

The multilayer stacked piezoelectric actuator can be so lasting when is well designed, but can be so fragile when the design work is insufficient. One the reason is the multilayer stacked piezoelectric actuator must be used under a preload conditions due its tension failure is so low which is 1/10 of its blocked (output) force. If a multilayer stacked piezoelectric actuator is well designed with preload, its life cycles can be more than 5 billions cycles.

 

－Easy to handle

It is quite tricky sometimes to utilize a multilayer stacked piezoelectric actuator. When the design works is not sufficient, then the output stroke become less. You need some know how to fully utilize it. Here, with the preload structured piezoelectric actuator, we guarantee you the performance of the multilayer stacked piezoelectric actuator. Besides, there are tapped hole machined in the preload mechanical structure, you can easily connect it to your experiment setup easily with screws. As the preload structured piezoelectric actuator is only connected to your experiments setup with screws, you can change it easily if there is a necessity. The multilayer stacked piezoelectric actuator will be more robust in your experiments setup when it is case in the preload mechanical structure.

 

―Reuse of the multilayer stacked piezoelectric actuator

The preload structured piezoelectric actuator can be reuse because it can be easily installed or removed from your experiments setup by removing the screws. Moreover, the multilayer stacked piezoelectric actuator will be more robust in your experiments setup when it is incorporated into a preload frame. Therefore, the chances to reuse the multilayer stacked piezoelectric actuator is high.

 

－Tailor made your own piezoelectric actuator

The are only several standard sizes of the multilayer stacked piezoelectric actuator in the market. When one need to use a different output performance of the multilayer stacked piezoelectric such as output stroke more that 100μm, one have to order made from the manufacturer. However, it may be highly cost and time consuming to the process. Sometimes the manufacturers do not even supply such long stroke piezoelectric actuator. Therefore, we propose a preload structured piezoelectric actuator that can be tailor based on your needs. We can combine the multilayer piezoelectric actuator in series or in parallel in order to achieve performance you need. Figure of PTK10S90 shows an example of a long strokes preload structured piezoelectric actuator

 

Long stroke preload structured piezoelectric actuator (PTK10S90)

Dimension: 14 x 19 x 91mm
Output stroke: 100μm (-20V～150V)

List of the MechaTransRPTK-Series

＜MTPTK Series＞

	Outline dimension [mm] WxDxH	Displacement [μm]	Blocked force [N]	Stiffness [N/μm]	Resonance frequency [Hz] *	Capacitance [μF]	Solid Model
MTPTK05S45F1600 Datasheet Download	5×15.6×52	45	1600	35.6	2400 @130g of load	9.0
MTPTK05S50F2000 Datasheet Download	5×15.6×52	50	2000	40.0	2100 @130g of load	11.0
MTPTK10S50F3000 Datasheet Download	10×15.6×52	50	2000	60.0	2600 @130g of load	25.6

 

Operating precautions for MechaTransR

Please confirm the following operating precautions before using MechaTransRPTK-Series.

1）Hysteresis

2）Continuous DC voltage under high humidity

3）Avoid excess tensile force against PZT and/or compression force to the arm

4）Do not superimpose DC voltage instantaneously

5）Ambient temperature

6）Polarization