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This piezo-driven rotator is designed for rotating small samples or one or two ANPx50 translation stages with high resolution.
- Environments: LT; UHV; magnetic field
- Motion: rotary stepping and scanning
- Travel: 360° endless
- Resolution: µ°
- Size: Ø 20 mm; height 9.5 mm
- Load: 30g
- Typical minimum step size: 0.5 m° @ 300 K, 0.5 m° @ 4 K
- Scan range: 80 m° @ 300 K, 12 m° @ 4 K
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Parallel Pre-Stressed Actuators PPA XL Series:
Designed by CEDRAT TECHNOLOGIES, these new models of Direct Piezo Actuators result from developments carried out under a CNES contract, the French Space Agency. PPA models are twice lighter than DPAs, with the same electromechanical properties. They are suited to dynamic applications and their compact size also makes their integration easier in mechanical assembly.
The XL Series produce displacements up to 120 µm and can generate a pushing blocked force of 7000 N.
- The PPA40XL
is the smallest size version of the Parallel Pre-stressed Actuator XL series. Stroke(µm): 38; Blocked force(N): 7000; Resonance frequency(Hz): 7700; Dimensions(mm): 60*30*30
- The PPA80XL
is the middle size version of the Parallel Pre-stressed Actuator XL series.
Stroke(µm): 90; Blocked force(N):7000; Resonance frequency(Hz): 3500;Dimensions(mm): 100*30*30
- The PPA120XL
is the biggest size version of the Parallel Pre-stressed Actuator XL series.
Stroke(µm): 130; Blocked force(N): 7000; Resonance frequency(Hz): 2600; Dimensions(mm): 140*30*30
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Parallel Pre-Stressed Actuators PPA M Series:
Designed by CEDRAT TECHNOLOGIES, these new models of Direct Piezo Actuators result from developments carried out under a CNES contract, the French Space Agency. PPA models are twice lighter than DPAs, with the same electromechanical properties. Their compact size also makes their integration easier in mechanical assembly. The M Series produce displacements up to 40 µm and can generate a pushing blocked force of 800 N.
- The PPA10M
is the smallest size version of the Parallel Pre-stressed Actuator M series.
Stroke(µm): 8; Blocked force(N): 800; Resonnance frequency(Hz): 32500; Dimensions(mm): 18*10*9
- The PPA20M
is the middle size version of the Parallel Pre-stressed Actuator M series.
Stroke(µm): 20; Blocked force(N): 800; Resonance frequency(Hz): 19400 ; dimensions(mm): 28*10*9
- The PPA40M
is the biggest size version of the Parallel Pre-stressed Actuator M series.
Stroke(µm): 40; Blocked force(N): 800 Resonance frequency(Hz): 12500 ; Dimensions(mm): 48*10*9
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Parallel Pre-Stressed Actuators PPA L Series:
Designed by CEDRAT TECHNOLOGIES, these new models of Direct Piezo Actuators result from developments carried out under a CNES contract, the French Space Agency. PPA models are twice lighter than DPAs, with the same electromechanical properties. They are suited to dynamic applications and their compact size also makes their integration easier in mechanical assembly.
The L Series produce displacements up to 80 µm and can generate a pushing blocked force of 3500 N.
- The PPA40L
is the smallest size version of the Parallel Pre-stressed Actuator L series.
Stroke(µm): 40; Blocked force(N): 3500; Resonance frequency(Hz): 7750; Dimensions(mm): 57*23,5*18
- The PPA60L
is the middle size version of the Parallel Pre-stressed Actuator L series.
Stroke(µm): 60; Blocked force(N): 3500 Resonance frequency(Hz): 4750; Dimensions(mm): 77*23,5*18
- The PPA80L
is the biggest size version of the Parallel Pre-stressed Actuator L series.
Stroke(µm): 80; Blocked force(N): 3500; Resonance frequency(Hz): 4250; Dimensions(mm): 97*23,5*18
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Parallel Pre-stressed Actuator (PPA)
The parallel pre-stressed actuator is a preloaded stack of low voltage piezoelectric ceramics (MLA). The preload (or pres-stress) is obtained from an external spring frame made of stainless steel which protects the MLA against tensile force and provide mechanical interfaces for the user allowing for easier integration. This prestressing frame applies an optimal preloading force to the MLA which ensures a longer lifetime and better performance with dynamic applications than traditional preloaded actuators.
Designed by the CEDRAT Group, this new direct piezo Actuator results contracts carried out for CNES, the French Space Agency. The PPA model is lighter than the compacting Direct Piezo Actuator, which has the same electromechanical properties. Its compact size also makes integration easier in mechanical assembly.
3 series (M, L, XL) of PPAs are available in order to meet the fidderent needs in terms of stroke, force and dimensions.
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Piezo Stepping Linear Motors for Nanopositioning and PicoPositioning and High-Speed Ultrasonic Piezo Motors for Automation:
PI provides two types of piezo linear motors: PILine® ultrasonic motors, also referred to as resonant motors, and NEXLINE® PiezoWalk® motors. Both can, in principle, attain unlimited travel, yet they are very different in their design, specifications and performance.
PILine® resonant motors are characterized by a simple design and high speed to 800 mm/s.
NEXLINE® & NEXACT® stepping motors are more complex but can achieve much higher resolution, forces and dynamic performance (analog mode).
A great advantage of piezo motors is their intrinsic steady-state auto-locking capability. It does away with servo dither and the accompanying heat generation, an undesirable feature of electromagnetic linear motors. Step and continuous piezo motors are in principle nonmagnetic and vacuum-compatible, a requirement for many applications in the semiconductor industry.
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Piezoelectric motors, Piezoelectric actuators
