Reliable Piezo Motion Devices for Industrial and Space Applications

Piezo ceramics convert electrical energy directly into mechanical motion and vice versa, based on crystalline solid state effects. Piezo actuators are quite unique in combining force, speed and precise motion into a small package. To make them more accessible for OEM designers, manufacturers can package the actuators inside an arrangement of flexures providing precision guidance, […]

Top 7 Air Bearing Myths

1. Air bearings are expensive. PIglide air bearings with no motors start at under $2k for a simple linear air bearing slide bearings and under $3k for a small rotary bearing. 2. Air bearings are only used for high speed motion. It’s true that air bearings are used in many high speed applications and can […]

What is the Difference between Parallel Positioners and Stacked Serial Kinematics?

When faced with a multi-axis motion application, many users stack motion stages, and in fact that is a fine approach for assemblies of just a few axes. But as applications become more complex, so do the equivalent stacks-of-stages, and very real and practical considerations begin to come into play. Stiffness.  Some stage manufacturers publish stiffness […]

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About PI

PI (Physik Instrumente) is a leading manufacturer of precision motion control equipment, piezo motors, air bearing stages and hexapod parallel-kinematics for semiconductor applications, photonics, bio-nano-technology and medical engineering. PI has been developing and manufacturing standard & custom precision products with piezoceramic and electromagnetic drives for 4 decades. The company has been ISO 9001 certified since 1994 and provides innovative, high-quality solutions for OEM and research. PI is present worldwide with fifteen subsidiaries, R&D / engineering on 3 continents and total staff of more than 1,000.

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