P-243 P-247 Preloaded Open & Closed Loop EHL Piezo Translators

  • Displacement to 120 µm
  • Pushing Forces to 30000 N
  • Pulling Forces to 3500 N
  • Extremely High Stiffness
  • Options: UHV, Low & High Temperature, Water Protected

 

P-243 and P-247 Preloaded Extra High Load Piezo Translators are high resolution linear actuators for static and dynamic applications. They provide sub-millisecond response and sub-nanometer resolution. The high load capacity and internal spring preload makes them ideal for machining applications and vibration cancellation.

Standard models are specifically designed for open loop operation. For highest accuracy, select the P-177.10 closed loop option integrating ultra-high resolution strain gage position sensors for operation with PI servo control electronics.

P-247 models are equipped with thinner Piezo ceramic layers, providing more displacement than P-243 models in the same package. On the other hand, their maximum operating voltage is limited to -1000 V with voltages in excess of -750 V recommended only for short periods of time.

Models P-247.xx, P-243.30 and P-243.40 come with a stainless steel case with internal spring preload protecting the Piezo ceramic stack. Models P-243.10 and P-243.20 come with an aluminum case, stainless steel end pieces and spring bolts providing the preload.

Application examples:
Precision machining, adaptive mechanics, vibration cancellation, smart structures, static and dynamic positioning of heavy parts, force generation for bending or compressing of material, etc.

Factory Installed Options:1)
P-177.10 Closed Loop Option

P-702.10 High Temperature Option

P-702.20 Low Temperature Option

P-703.20 High Vacuum Option

P-705.00 Positive Polarity

P-706.xx Water Protected Case (not for P-243.10 and P-243.20)

1) When ordering the following options, change the last digit to 7, e.g. P-243.10 to P-243.17, and list options separately.


P-243 P-247 Preloaded Open & Closed Loop EHL HVPZT Translators

 

TECHNICAL DATA: P-243, P-247

Models *

P-243.10

P-243.20

P-243.30

P-243.40

P-247.20

P-247.30

P-247.50

P-247.70

Units

Notes

Open loop travel @ 0 to -1000 V

10

20

40

60

20

40

80

120

µm ± 20 %

A4

* Closed loop travel ³

10

20

40

60

20

40

80

120

µm

A5

* Integrated feedback sensor

SGS

SGS

SGS

SGS

SGS

SGS

SGS

SGS

 

B

* Closed / open loop ** resolution

0.2 / 0.1

0.4 / 0.2

0.8 / 0.4

1.2 / 0.6

0.4 / 0.2

0.8 / 0.4

1.6 / 0.8

2.4 / 1.2

nm

C4

Stiffness

2130

1160

625

420

2100

1120

590

400

N/µm
± 20 %

D1

Force generation (blocked)

21000

23000

25000

25000

42000

45000

47000

48000

N ± 20 %

D2

Push/pull force capacity

30 / 2

30 / 2

30 / 2

30 / 2

30 / 3.5

30 / 3.5

30 / 3.5

30 / 3.5

kN

D3

Torque limit (at tip)

2000

2000

2000

2000

2000

2000

2000

2000

mNm

D6

Max. operating voltage

-1500

-1500

-1500

-1500

-1000

-1000

-1000

-1000

V

A7

Electrical capacitance

360

720

1330

1800

1220

2300

4400

6560

nF ± 20 %

F1

Dynamic operating current coefficient (DOCC)

45

45

45

45

76

76

76

76

µA/
(Hz x µm)

F2

Unloaded resonant frequency (f0)

11

8

5

3.5

8

6.5

4.5

3

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

L

L

 

J2

Weight without cables

460

630

850

960

580

660

830

960

g ± 5 %

K

Material case / end pieces

Al / N-S

Al / N-S

N-S

N-S

N-S

N-S

N-S

N-S

 

L1

Length L

41.5

63

116.5

144

56

73

116.5

144

mm ± 0.5

L2

Case type

A

A

B

B

B

B

B

B

 

L3

Recommended Amplifier/Controller

B, J

B, J

B, J

B, J

B, J

B, J

B, J

B, J

 

M

* Closed loop models require the P-177.10 option and are supplied with calibration data sheets.
** Noise equivalent motion with E-507 amplifier.

This is a legacy product that may have limited availability or may have been replaced. Ask a PI engineer for an equivalent new model.

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