Piezo Stack Actuators, Closed-Loop Linear Actuator, P-170

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Compact Piezo Stack Actuators
Displacement to 80 µm
Pushing Forces to 2000 N
Pulling Forces to 50 N
Sub-msec Response
Sub-nm Resolution
Options: UHV, High & Low Temperature, Choice of End Pieces

These compact, high-resolution linear actuators are available with closed-loop position feedback for high precision positioning and motion control. P-170, P-171, P-172, 173 and P-178 Piezo Translators can be employed for static and dynamic motion applications. They provide sub-millisecond response and sub-nanometer resolution.

Standard models can be run in open loop control and provide high resolution. For highest accuracy and repeatability, select the P-177.10 closed-loop control option integrating ultra-high resolution feedback sensors for operation with PI high performance servo control electronics (learn more on Position Sensors and Closed Loop Operation ).

P-178 precision PZT linear actuators are equipped with different Piezoelectric layers compared to P-170 to P-173 actuators models, providing more displacement in the same package. On the other hand, the maximum operating voltage is limited to -1000 V.

Also, voltages in excess of -750 V are recommended only for short periods of time for the P-178 models.

The Piezo stacks are protected from external influence by an aluminum case. Standard top piece is a magnet, standard bottom piece is a ferromagnetic steel flat. A variety of optional top and bottom pieces are available for ease of mounting. For push/pull forces up to 3 N, the translator can be mounted by clamping around the case. For larger forces, the translator must be mounted by the base.

Application examples:
Static and dynamic positioning, optics, metrology, laser tuning, patch clamping, etc.

Accessories:
Extension cables & connectors.

See "PZT Control Electronics" section for our comprehensive line of low noise, modular and OEM control electronics for computer and manual control.

TECHNICAL DATA: P-170 TO P-178.50
Models *	P-170.00	P-171.00	P-172.00	P-173.00	P-178.10	P-178.20	P-178.30	P-178.50	Units	Notes
Open loop travel @ 0 to -1000 V	5	10	20	40	10	20	40	80	µm ± 20 %	A4
* Closed loop travel ³	5	10	20	40	10	20	40	80	µm	A5
* Integrated feedback sensor	-	SGS	SGS	SGS	-	SGS	SGS	SGS		B
* Closed / open loop ** resolution	0.1 / 0.05	0.2 / 0.1	0.4 / 0.2	0.8 / 0.4	0.2 / 0.1	0.4 / 0.2	0.8 / 0.4	1.6 / 0.8	nm	C4
Stiffness	310	180	98	53	310	170	91	48	N/µm ±20%	D1
Force generation (blocked)	1500	1800	1900	2100	3100	3400	3600	3800	N ± 20 %	D2
Push/pull force capacity	2000 / 50	2000 / 50	2000 / 50	2000 / 50	2000 / 50	2000 / 50	2000 / 50	2000 / 50	N	D3
Torque limit (at tip)	500	500	500	500	500	500	500	500	mNm	D6
Max. operating voltage	-1500	-1500	-1500	-1500	-1000	-1000	-1000	-1000	V	A7
Electrical capacitance	14	25	47	89	50	95	180	340	nF ± 20 %	F1
Dynamic operating current coefficient (DOCC)	3.25	3.25	3.25	3.25	6	6	6	6	µA/ (Hz x µm)	F2
Unloaded resonant frequency (f₀)	17	14	9	6	17	14	9	6	kHz ± 20 %	G2
Standard operating temperature range	-40 to +80	-40 to +80	-40 to +80	-40 to +80	-40 to +80	-40 to +80	-40 to +80	-40 to +80	° C	H2
Voltage connection	VH	VH	VH	VH	VH	VH	VH	VH		J1
* Sensor connection	-	L	L	L	-	L	L	L		J2
Weight without cables	19	26	40	65	19	26	40	65	g ± 5 %	K
Material case / end pieces	Al / S	Al / S	Al / S	Al / S	Al / S	Al / S	Al / S	Al / S		L
Length of case w/o end pieces	14	22	38	68	14	22	38	68	mm ± 0.5
Recommended Amplifier/Controller	B, I, J	B, I, J	B, I, J	B, I, J	B, I, J	B, I, J	B, I, J	B, I, J		M

Factory Installed Options:¹)

P-177.10 Closed Loop Option (Strain Gage Sensors)not for P-170.00, P-178.10
P-702.20 Low Temperature Option
P-703.10 High Vacuum Option
P-705.00 Positive Polarity
P-700.10 M4 on Top Piece
P-700.01 M4 on Bottom Piece
P-700.20 M5 on Top Piece
P-700.02 M5 on Bottom Piece
P-700.03 M8 on Bottom Piece
P-700.40 4/40 on Top Piece
P-700.04 4/40 on Bottom Piece
P-700.50 Flat Top Piece, Hardened Steel
P-700.60 Flat Top Piece, Tungsten Carbide, Polished
P-700.70 Ball Tip
¹) When ordering the following options, change the last digit to 7, e.g. P-170.00 to P-170.07, and list options separately