Stepping piezo actuators

CEDRAT TECHNOLOGIES develops FSPA, LSPA or RSPA piezoelectric motors, MSPA piezo motors modules and SPS motorized stages both as standard products and customized products.

These technologies operate by accumulation of small steps. Between each step the actuator is locked in position. When the long stroke is performed, it can also be operated in a deformation mode for a fine adjustment. In this case, the stroke is proportional to the applied voltage, which leads to a nanometre resolution and a high bandwidth.

Some stepping piezo motors are available as standard and cost effective products. CEDRAT TECHNOLOGIES also offers Developer’s Kits including a motor, a sensor and a controller for a quick and easy prototyping.

Several customized SPA are also developed by Cedrat Technologies to meet various environments (medical MRI, space…) and customers’ needs. Examples of customized SPA piezo motors are given in the piezo motor technologies section or in our publications.

Piezo motor - FSPA35XS

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Description

Fine Stepping Piezo Actuator (FSPA35XS) is a patented actuator that combines SPA technology with mechanical reduction. This allows to achieve very small step sizes even down to 10 nm. Typical max speed for this FSPA is 200 um/s.

Performances
Actuation force: >100N; Travel range: 5mm; Typical lifetime: 100 cycles
Available options
Micro/Nano positioning, locking mechanism
Status
Preliminary
Piezo motor picture

Modular Stepping Piezo Actuator - MSPA30uXS

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Description

MSPA is a module that provides unlimited motion in both rotation and translation. Since it's a module it easily fits any existing devices requiring 0.3 N of driving force.

Performances
Volume= 2 cm³; Max speed: 50 mm/s; Max driving force: 0.3 N; Lifetime more than 2 km
Available options
amagnetic; vacuum
Status
Preliminary
Modular Stepping Piezo Actuator picture

Modular Stepping Piezo Actuator - MSPA35XS

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Description

MSPA is a module that provides unlimited motion in both rotation and translation. Since it's a module it easily fits any existing devices requiring 1 N of driving force.

Performances
Volume= 7 cm³; Max speed: 20 mm/s; Max driving force: 1 N; Lifetime more than 2 km
Available options
amagnetic; vacuum
Status
Preliminary
Modular Stepping Piezo Actuator picture

Modular Stepping Piezo Actuator - MSPA40SM

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Description
MSPA is a module that provides unlimited motion in both rotation and translation. Since it's a module it easily fits any existing devices requiring 25 N of driving force.
Performances
Volume= 20 cm³; Max speed: 10 mm/s; Max driving force: 25 N; Lifetime more than 2 km
Available options
amagnetic; vacuum
Status
Preliminary
Modular Stepping Piezo Actuator picture

Linear Stepping Piezo Actuators - LSPA30uXS

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Description
The Linear Stepping Piezo Actuator LSPA30uXS is a high-force density stepping linear micro piezomotor.
Performances
Mass=1.9gr ; Max no load displacement: 6mm; Max speed: 70mm/s; Max driving force: 0.30N
Available options
Non-magnetic, IRM compatible
Status
Standard
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Linear Stepping Piezo Actuators - LSPA35XS

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Description
The Linear Stepping Piezo Actuator LSPA35XS is a high-force density stepping linear micro piezomotor.
Performances
Mass=5 gr ; Max no load displacement: 10mm; Max speed: 30mm/s; Max driving force: 1N
Available options
Non-magnetic
Status
Standard
Linear Stepping Piezo Actuators picture

Rotary Stepping Piezo Actuators - RSPA30XS

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Description
Rotary Stepping Piezoelectric Actuators (RSPA) are new long-stroke rotating piezoelectric motors for micro/nano positioning applications benefiting from the APA® heritage. They operate by accumulation of small steps.
Performances
Mass=3 gr ; Max speed: 65 rpm; Max driving torque: 1.33 Nmm
Status
Preliminary
Rotary Stepping Piezo Actuators picture