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PI Ceramic has developed a new type of production technology that enables it to produce multilayer piezo actuators with inner holes or in unusual shapes.

The new technology can produce tiny holes and structured ceramic surface and almost any type of contour – even three-dimensional ones.

Special milling machines work the sensitive ceramic films in the green state (before sintering).

The individual layers are then equipped with electrodes and laminated.

The co-fired process is used to sinter the ceramic with the internal electrodes, as happens with PICMA standard actuators.

The result is a continuous insulating ceramic layer with all its familiar advantages.

The piezo actuator is protected against humidity and has a high dielectric strength, which significantly increases the lifetime when compared with conventional polymer-insulated actuators.

PICMA piezo stack actuators with additional inner hole are suitable for fibre-stretching applications, for example.

It is also possible to produce piezo bender elements in different designs with and without a hole.

Physik Instrumente

PI is a global manufacturer of high precision positioning systems and products based on piezo technology. Used in markets as diverse as biotechnology, semiconductor, defence and astronomy, PI’s products work to improve the speed and precision of many cutting edge processes. Actuators, sensors and positioning systems with either sub-micron or nanometre level precision; many customised for the end user, are included in the product range.

With manufacturing and subsidiary offices around the world and a workforce of more than 500 PI provides direct local support where it is needed. Products range from component level piezo ceramic assemblies to six axis hexapod positioning robots. PI manufactures its own piezo ceramic material including multilayer devices that incorporate its patented ceramic insulation technology. Lead free ceramic technology is now also included in the company’s product range. With the flexibility and continuity of supply offered by having control of piezo ceramic production comes security and speed of delivery for customers who rely on or are looking to move into this area of technology. PI’s piezo ultrasonic and step drive motor technologies offer unique performance including self-locking capability, high force or high speed and non-magnetic and vacuum compatibility.

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