The N-380 series of linear actuators from Physik Instrumente is venturing into a new performance class for linear drives, providing high forces to 10N and speeds of approx. 10 mm/s at resolutions of 20 nanometers (closed-loop). A Nextact piezo walking drive replaces conventional stepper-motors or DC servo-motors providing several advantages. Due to the direct linear drive, there is no loss of precision as a result of converting rotational to linear motion. The position is securely clamped when switched off. The drive does not need to be powered and does not heat up.