Piezo actuator

Last Updated on March 22, 2023 by You Ling

Piezo actuator

Piezoelectric actuator before we talk about it, we should understand these questions first.

What is the exactly piezoelectric actuator?
What is the meaning of piezo stack?
How to install the piezo actuators?
What’s the feature of piezo stacks?
What is the application of the piezoelectric stack actuator?
How to buy the piezo stack from China?
What is the tape casting process for the piezoelectric stack?

What is the application of the piezoelectric stack actuator?

Cavity tuning
Hardness testing
Micro EDM
Cell penetration
Shock absorption and vibration reduction

What is the exactly piezoelectric actuator?

The piezoelectric actuator is a kind of device. Which converts electrical energy into a mechanical displacement or stress based on a piezoelectric effect.

The piezo stack (PZT stack) will be installed in the actuator.Piezo stack also called multilayer piezoelectric ceramic actuator, piezo actuator, piezoelectric stack actuator.

It’s a kind of industry ceramic with a very complex process. In He-Shuai Ltd, we used tape casting technology to produce the piezoelectric ceramic.

“Multilayer” it means lots of piezoelectric ceramic disc. We can do some of the shapes for you. Like: disc, ring, cylinder, square with hole, and so on.

You can check our product list for standard models before you buy piezoelectric stacks. Or you can send us your requests for OEM orders.

How to install the piezo actuators?

The material of the product is ceramic material and has brittleness. So, the installation method should be surface contact. Do not use point contact or line contact. When using this product, the output direction and the axial direction of the device must be consistent.

What’s the feature of the piezo stack?

Small size, Sub-nanometer resolution
Low voltage drive
Large displacements
Discrete stack
High dynamic drives
High output up to 50000N
Resistance magnetic
Can work in the vacuum environment

Here we have normal standards for your reference.If you haven’t find the size what you need, please contact us directly, we will reply to you very soon.

A series: 150V DC

Material: piezoelectric ceramics
Shape: plate
Certifications: CE, RoHS, SGS ISO9001:2008, ISO14001:2015
Working voltage: -20 to 150V DC
Operating temperature range: -20 to 120℃
Wire lead: red is an electrode (+), and black is the cathode (-)
Recommended preload for dynamic operation: 15MPa
Maximum preload for constant force: 20MPa

Model	SIZE	Nominal displacement	Blocking force	Stiffness	Electrical capacitance	Frequency
A×B×H [mm]	[ um@150V ]	[ N@150V ]	[ N/um]	[ uF]	[ kHz]
±0.05	±10%			±20%	±20%
HS-1500303041	3x3x5	4	330	80	0.14	300
HS-1500303051	3x3x6	5	330	66	0.18	250
HS-1500303101	3x3x10	10	330	33	0.3	150
HS-1500303181	3x3x18	18	330	18	0.5	83
HS-1500505031	5x5x4	4	900	225	0.38	375
HS-1500505051	5x5x6	5	900	180	0.55	250
HS-1500505101	5x5x10	10	900	90	0.8	150
HS-1500505201	5x5x18	20	900	45	1.5	83
HS-1500505202	5x5x20	22	900	41	1.8	74
HS-1500505301	5x5x28	30	900	30	2.4	53
HS-1500505311	5x5x31	31	900	30	2.6	50
HS-1500505401	5x5x36	40	900	28	3	42
HS-1500505402	5x5x34	40	900	28	2.9	44
HS-1500505403	5x5x40	44	900	20	3.6	37
HS-1500505601	5x5x54	60	900	15	4.5	28
HS-1500707101	7x7x10	10	1800	180	2	150
HS-1500707201	7x7x18	20	1800	90	3.2	83
HS-1500707301	7x7x28	30	1800	60	5.5	53
HS-1500707361	7x7x30	36	1800	50	6	50
HS-1500707362	7x7x30	36	1800	50	6	50
HS-1500707381	7x7x32	38	1800	47	6.2	47
HS-1500707401	7x7x36	40	1800	45	6.4	42
HS-1500707501	7x7x42	50	1800	36	7.2	36
HS-1501010101	10x10x10	10	3600	360	3.8	150
HS-1501010201	10x10x18	20	3600	180	7.5	83
HS-1501010301	10x10x28	30	3600	120	12	53
HS-1501010401	10x10x36	40	3600	90	15	42
HS-1501010501	10x10x46	50	3600	72	19	33
HS-1501010601	10x10x54	60	3600	66	22.5	28
HS-1501414101	14x14x10	10	7200	720	6.2	150
HS-1501414201	14x14x20	20	7200	360	13.1	75
HS-1501414301	14x14x30	30	7200	240	19.3	50
HS-1501414401	14x14x40	40	7200	180	26.2	37

B series: 200 V DC

Material: piezoelectric ceramics
Shape: Rectangular and Square
Certifications: CE, RoHS, SGS ISO9001:2008, ISO14001:2015
Working voltage: -20 to 200V DC
Operating temperature range: 20 to 120℃
Wire lead: red is an electrode (+), and black is the cathode (-)
Recommended preload for dynamic operation: 15MPa
Maximum preload for constant force:20MPa

Model	Dimensions AxBxH[mm] -/+0.05mm	Nominal displacement [µm@200V] ±10%	Blocking force [N@200V]	Stiffness [N/µm]	Electrical capacitance uF	Resonance Frequency [kHz]
HS-2000303051	3×3×6	5	330	66	0.11	250
HS-2000303101	3×3×10	10	330	33	0.25	150
HS-2000505051	5×5×6	5	900	180	0.35	250
HS-2000505101	5×5×10	10	900	90	0.55	150
HS-2000505121	5×5×12	12	900	75	0.57	125
HS-2000505201	5×5×18	20	900	45	0.9	83
HS-2000505301	5×5×28	30	900	30	1.5	53
HS-2000505302	5×5×30	30	900	30	1.5	50
HS-2000505401	5×5×36	40	900	23	1.8	42
HS-2000505402	5×5×35	40	900	23	1.8	43
HS-2000707101	7×7×10	10	1800	180	1	150
HS-2000707201	7×7×18	20	1800	90	1.9	83
HS-2000707301	7×7×28	30	1800	60	3	53
HS-2000707381	7×7×32	38	1800	47	3.2	47
HS-2000707401	7×7×36	40	1800	45	3.8	42
HS-2000707501	7×7×42	50	1800	36	4.5	36
HS-2001010101	10×10×10	10	3600	360	2	150
HS-2001010201	10×10×18	20	3600	180	3.5	83
HS-2001010301	10×10×28	30	3600	120	6	53
HS-2001010401	10×10×36	40	3600	90	7	42
HS-2001414101	14×14×10	10	7200	720	3.5	150
HS-2001414201	14×14×20	20	7200	360	6.5	75
HS-2001414301	14×14×30	30	7200	240	9.5	50
HS-2001414401	14×14×40	40	7200	180	13	37

Specification for ring shape ( 150V series)

Model	Dimensions ODxIDxTH (mm)	Nominal displacement [µm@150V]	Blocking force[N@150V]	Stiffness [N/µm]	Electrical capacitance [µF]	Resonance Frequency [kHz]
HS-R1500525051	5×2.5×6	5	600	120	0.3	250
HS-R1500525101	5×2.5×10	10	700	70	0.5	150
HS-R1500525201	5×2.5×18	20	700	35	1	83
HS-R1500845101	8×4.5×10	10	1300	130	0.8	150
HS-R1500845201	8×4.5×18	20	1300	65	1.5	83
HS-R1501006101	9.5×5.5×10	10	1500	150	1.2	150
HS-R1501005101	10×5.5×10	10	1500	150	1.2	150
HS-R1501205201	12x5x20	20	3400	170	6	75
HS-R1501206101	12x6x10	10	3000	220	2.4	150
HS-R1501206161	16x6x16	18	3000	122	4.1	94
HS-R1501206201	12x6x20	22	3000	100	5.3	75
HS-R1501304201	13x4x20	22	3600	163	8.5	75
HS-R1502015051	20x15x6	5	4000	800	1.4	250
HS-R1502619201	26x19x18	20	7200	360	12	83

Specification for round shape ( 150V series)

Model	Dimensions OD xH [mm] -/+0.05mm	Nominal displacement [µm@200V] ±10%	Blocking force [N@200V]	Stiffness [N/µm]	Electrical capacitance uF	Resonance Frequency [kHz]
HS-D15014831	14*79	83	7500	85	43	19
HS-D15014241	14.2*24	24	7500	312	16	62
HS-D15014481	14.2*48	48	7500	156	30	31
HS-D15014201	14.7*20	20	7500	375	13	75
HS-D15014401	14.7*40	40	7500	188	27	37.5
HS-D15014801	14.7*80	88	7500	85	50	18

Note: The pre-tightening force of the installation generally does not exceed 20% of the output.

[1] The ceramic size does not include the size of the resin. The gray resin has a thickness of 50 μm on one side, the green side has a thickness of 0.5 mm on one side, and the size of the outlet is +1 mm on one side with a tolerance of ±0.2 mm.
The height tolerance is +/-0.05mm.
[2] PT150V series nominal displacement is the displacement stroke at 0~150V driving voltage, the maximum displacement is the displacement stroke at -20V~150V driving voltage, for reliable long-term
Use, it is recommended that the driving voltage be 0~120V. The maximum displacement of the PT200V series is the displacement stroke at 0~200V drive voltage.

What is the tape casting process for the piezoelectric stack?

The tape casting process of polycrystalline materials is very widely. It used for the production of single or multilayered piezoelectric materials. These materials are ideal for micro-actuator applications.

He-Shuai company offers this production capability in addition to press processing to meet the diverse needs of our customers.