- High Force Linear Actuators
- Displacement to 180µm
- Pushing Forces to 4500N (990lbs)
- Pulling Forces to 500N
- Sub-msec Response
- Sub-nm Resolution
- Options: UHV, Low & High Temperature
The high load linear actuator family P-239 is based on a ceramic stack of piezoelectric materials for high performance, ultra-high resolution motion. They can be operated in static and highly dynamic mode, with 990lbs (450kg) load. These actuators provide sub-millisecond response and sub-nanometer resolution. The internal spring preload makes them ideal for high precision machining applications, such as diamond turning, out-of-round turning, etc.
Standard PZT actuator models can be operated in open loop operation and provide nanometer resolution. For highest precision, accuracy, and repeatability, the P-177.10 closed loop feedback sensor option is available, integrating ultra-high resolution strain gage position feedback sensors for operation with PI high performance servo control electronics (click here for details on Position Sensors and Closed Loop Operation).
P-239 high load precision actuator models are equipped with special Piezoelectric ceramic layers, providing displacement up to 180 µm at -1000 V operating voltage. For maximum lifetime, voltages in excess of -750 V are recommended only for short periods of time.
The PZT stack actuator is protected from large pulling forces by a stainless-steel case with internal spring preload. The standard translator tip and base have tapped holes. Select the P-239.95 ball tip option to help decouple off-axis or torque loads from the translator tip. For push/pull forces up to 5 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, smart structures, precision machining, adaptive mechanics, vibration cancellation, switching, laser tuning, force generation for bending or compressing of material, etc.
Factory Installed Options:1)
P-177.10 Closed Loop Control Option, not for P-239.00
P-702.10 High Temperature Option
P-702.20 Low Temperature Option
P-703.20 High Vacuum Option
P-705.00 Positive Polarity
P-239.95 Ball Tip
1) When ordering the following options, change the last digit to 7, e.g. P-239.00 to P-239.07, and list options separately.
Accessories:
Extension cables & connectors.
P-239 High Load Linear Actuators, Piezo Stacks, Closed-Loop Control Option, (Linear Piezo Translators)
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-239 | ||||||||||
Models * | P-239.00 | P-239.10 | P-239.20 | P-239.30 | P-239.40 | P-239.60 | P-239.80 | P-239.90 | Units | |
Open loop travel | 5 | 10 | 20 | 40 | 60 | 100 | 140 | 180 | µm ± 20 % | A4 |
* Closed loop travel ³ | 5 | 10 | 20 | 40 | 60 | 100 | 140 | 180 | µm | A5 |
* Integrated feedback sensor | - | - | SGS | SGS | SGS | SGS | SGS | SGS | B | |
* Closed / open loop ** | 0.1 / 0.05 | 0.2 / 0.1 | 0.4 / 0.2 | 0.8 / 0.4 | 1.2 / 0.6 | 2 / 1 | 2.8 / 1.4 | 3.6 / 1.8 | nm | C4 |
Stiffness | 1440 | 800 | 423 | 220 | 150 | 90 | 66 | 52 | N/µm ± 20 % | D1 |
Force generation (blocked) | 7000 | 8000 | 8400 | 8800 | 9000 | 9000 | 9200 | 9300 | N ± 20 % | D2 |
Push/pull force capacity | 4500 / 500 | 4500 / 500 | 4500 / 500 | 4500 / 500 | 4500 / 500 | 4500 / 500 | 4500 / 500 | 4500 / 500 | N | D3 |
Torque limit (at tip) | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | mNm | D6 |
Max. operating voltage | -1000 | -1000 | -1000 | -1000 | -1000 | -1000 | -1000 | -1000 | V | A7 |
Electrical capacitance | 70 | 120 | 245 | 460 | 660 | 1150 | 1550 | 2100 | nF ± 20 % | F1 |
Dynamic operating current coefficient (DOCC) | 17.5 | 17.5 | 17.5 | 17.5 | 17.5 | 17.5 | 17.5 | 17.5 | µA/(Hz x µm) | F2 |
Unloaded resonant | 12 | 10 | 8 | 6.5 | 5.6 | 4 | 3 | 2 | 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 | 85 | 94 | 112 | 148 | 184 | 256 | 328 | 400 | g ± 5 % | K |
Material case / end pieces | N-S | N-S | N-S | N-S | N-S | N-S | N-S | N-S | L | |
Length L | 35.5 | 40 | 48.5 | 66.5 | 83 | 118.5 | 151 | 184 | mm ± 0.5 | |
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
P-239 Dimensions
For mounting guidelines click here
Custom design for volume buyers
This is a legacy product that may have limited availability or may have been replaced. Ask a PI engineer for an equivalent new model.