Actuators, linear

Noliac's line of ceramic multilayer actuator products is based on the company's advanced multilayer technology, harnessing the full potential of the piezoelectric effect at very low operating voltages.

Multilayer piezoelectric actuators are ­co-fired multilayer ceramics typically with a height up to 2-3mm and with up to 100 ceramic layers.

Multilayer piezoelectric stack actuators are made of two or several single actuators glued together. The purpose of the stacking is to obtain more displacement than can be achieved by a single actuator. 
 

Ceramic multilayer actuators 

Multilayer piezoelectric actuators can be made very small, e.g. 1mm x 1mm x 0.2mm, and can be designed in a variety of geometries, such as squares, rings and discs. 

The most common actuator geometry is a square with typical performance range up to 5µm stroke and up to 4000N blocking force.

Noliac has also developed ring or disc shape actuators with typical performances range up to 5µm stroke and up to more than 30000N blocking force.
 
Multilayer actuators are used in numerous applications within e.g. IT (hard disc drives), optics, telecommunication, instrumentation, automotive, nano-positioning, etc.
 

Highlights:

Actuator plates	Actuator rings
Square shape   Typical sizes are 3mm x 3mm, 5mm x 5mm, 7mm x 7mm and 10mm x 10mm   Blocking force up to 4000N   Full performances achievable with voltages down to 60V   No EMI	Ring shape   Typical sizes are OD6mm, OD8mm, OD12mm, OD15mm and OD20mm     Blocking force up to 8000N   Full performances achievable with voltages down to 200V   Better resistance to humidity than square shape actuators   Easy integration due to the ring or disc shape
Height up to 3mm   Quick response time (μS range)   Free displacement up to 5μm in the polarization direction   Low energy consumption   Choice of soft doped PZT for high stroke and hard doped PZT for low loss/ high frequency applications

Stacked ceramic multilayer actuators 

Noliac's single actuators, plates and rings, can be stacked. Thereby, the height can be made according to your needs. 

Noliac's stacking technology also offers a unique manufacturing flexibility as any actuator height can be made from a defined number of single actuators. 

The most common actuator geometry is a square with typical performance range up to 200µm stroke and up to 4000N blocking force.

Noliac has also developed ring shape actuators with typical performances range up to 200µm stroke and up to more than 8000N blocking force.

Highlights:

Stacked actuator plates	Stacked actuator rings
Square or rectangle shapes   Typical cross sections are 3mm x 3mm, 5mm x 5mm, 7mm x 7mm and 10mm x 10mm   Height can be up to 10x the smallest cross section dimension, i.e. 100mm for a 10mmx10mm cross section   Blocking force up to 4000N   Full performances achievable with voltages down to 60V	Ring shape   Typical sizes are OD6mm, OD8mm, OD12mm, OD15mm and OD20mm   Height can be up to 10x outer diameter, i.e. 200mm for a 20mm outer diameter     Blocking force up to more than 8000N   Full performances achievable with voltages down to 200V   Better resistance to humidity than square shape actuators   Easy integration due to the ring shape
Free displacement up to 200μm in the height direction   Quick response time (μS range)   Low energy consumption   No EMI    Choice of soft doped PZT for high stroke and hard doped PZT for low loss applications