Stack & Ring Actuators
Piezo stack and ring actuators offer precise fast repeatable motion in a single axis. They have extremely long lifetimes, and some models are capable of moving very large masses.
They are ideal for positioning, dampening, as well as shake and shock material testing applications. Stack actuator motions are available up to 260 µm.
Ring actuators have the additional benefit of an aperture for light or objects to pass through them, which is ideal for microscopy, laser and other photonic applications. The aperture diameters available is either 9 mm or 14 mm, and either size offers a motion up to 130 µm.
Low-power Stack & Ring Actuators
Series N Stacks
- Basic piezo stack actuators
- Without casing
- Without an integrated preload
- Motion up to 123 µm
- High stiffness up to 250 N/µm
- Resolution is virtually unlimited
High-Performance CuX Stacks
- Ideal for high-quantity applications
- High temperature tolerant to 200˚ C
- Superior humidity resistance
- 20+% greater stroke
- Up to 2.6 kN force
- Superior fifetimes
- Fast delivery times
Series P and PHL Stacks
- Actuators are encased
- Without a preload
- P stacks offer motion up to 82 µm, and a stiffness of 210 N/µm
- PHL (High-Load) stacks offer motion up to 103 µm, and a stiffness of 175 N/µm
Series P/S Stacks
- Hermetically sealed
- Designed for working in humid environments up to IP68
- Integrated preload
- Compact design
- Motion is up to 70 µm
Series PA, PAT and PAHL Stacks
- Excellent dynamic properties
- High resonant frequencies
- Integrated preload
- Tensile forces up to 350 N
- Motion up to 140 µm of motion
- Vacuum and low temperature models are available
Series R Rings
- 9 mm or 14 mm aperture
- Integrated preload
- Without casing
- Motion of up to 50 µm
- Blocking force of up to 4,000 N
- Microsecond response time
Series RA Rings
- 9 mm or 14 mm aperture
- Encased
- Blocking force of 4,000 N
- Open-loop motion of 50 µm
- Closed-loop motion of 40 µm
- Sub-nm resolution
Recommended Controllers for low-power piezo Stack & Ring Actuators
For single axis stack and ring actuators only a single channel of amplification is needed. There are two controllers recommended for most applications.
The analog 12V40 controller offers:
- 1-channel of control amplification
- Compact size
- 40 mA permanent output current
- 12 V DC voltage input
- Modulation input
- Monitor output
The digital NV200D controller offers:
- 1-channel of control amplification
- PiSoWorks software for complete piezo control
- Ethernet connection for remote control
- USB-C Interface
- Real time SPI interface
- Analog interface
- Trigger I/O
- 400 mA peak current
High-power Stack & Ring Actuators
hpower Stacks
- High force, up to 50,000 N
- Very high stiffness
- Very high resonant frequencies in the range of several kHz
- Available with, or without casing
- Available with or without a preload
- Optional strain gauge measurement system
hpower Shock Stacks
- High repeatability of the adjustable impact parameters
- Short rise time (in microseconds)
- Maximum acceleration to 20,000 g
- System remains at rest until the impact process is started
- Ideal for high stress material testing
hpower Shake Stacks
- High frequency shake actuators
- High performing and cost-efficient alternative to traditional EDM shakers
- Working frequency of up to 70,000 Hz
- Forces up to 50,000 N
- Maximum amplitude is 12 µm
hpower Rings
- High-power actuators
- High-force up to 35,000 N
- Motion up to 130 µm
- Available with or without casing
- Available with or without a preload
- Structurally very stable
Recommended Controllers for high-power piezo Stack & Ring Actuators
For single high-power axis stack and ring actuators only a single channel of high-power amplification is needed. There are three controllers recommended to cover hpower specific actuators and applications.
For standard hpower stack and ring actuators, the HPA 1000-10 controller is recommended:
- High power for dynamic operations
- Max peak output current: 10 amps
- Piezo output voltage: 0 to 1000 V
- Noise: < 1 V peak-to-peak
- Small Signal bandwidth: 2 kHz
- For actuators with 1 µF capacity and higher
For hpower Shock actuators, the HVP 1000/200 controller is recommended:
- Fast-charge amplifier for pulse control and shockwave generation
- Output current: 200 amps
- Output voltage: +40 to 1000 Volts
- Alternative ohmic resistor for setting rise time
For hpower Shake actuators, the LE 150/100 EBW controller is recommended:
- Extremely high-bandwidth amplifier
- For high frequencies at low stroke/motion
- Ideal for hpower Shake actuators
- Maximum voltage of 150 Volts
- Maximum continuous current of 1 Amp
- Bandwidth of 70,000 Hz
Discover more Ultra-Fine Positioning Products:
in cooperation with:
Piezosystem Jena (PSJ)
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