Product Details Supplier Info More products

PI has introduced the N-216 Nexline high-load piezo linear motors – ultra-precision nanopositioning actuators that provide travel ranges to 20mm and push/pull forces to 600N (130lb).

The operating principle is based on coordinated motion of a number of highly preloaded linear and shear piezo elements acting on a ceramic runner.

Nexline Piezowalk drives can be used in ultra-precision manufacturing and semiconductor test equipment to astronomy and high-energy physics applications.

Their reliability makes them suitable for applications in difficult-to-access internals of instruments, where nanometer-realm adjustment and/or vibration cancellation are required.

To promote long lifetime, the Piezowalk controller can reduce the operating voltage on the piezo elements to zero at any position without affecting the full holding force (up to 800N, 177lbs).

The piezoceramic clamping and shear elements act directly on a moving runner coupled to the load.

For maximum velocity and long-distance movements, the runner can be driven in full step mode.

Extremely uniform motion and constant velocity is achieved with the nanostepping mode.

Combining long travel ranges with piezo-class precision, Nexline Piezowalk drives offer a high-dynamics analogue operation mode over smaller distances.

Open- and closed-loop operation N-216 linear motors come in two versions for open- or closed-loop operation, as well as in two different load configurations.

Closed-loop versions are equipped with a linear encoder for direct position measurement of the moving runner.

The encoder features 5nm resolution over the full travel range.

In open-loop operation a positioning resolution to 30 picometers can be realised by use of the analogue operation mode.

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.

View full profile