Available with travel ranges of 26, 52, and 102 mm and velocity to 20 mm/sec, L-509 positioner delivers smooth motion with unidirectional repeatability down to 0.1 micron. Precision crossed roller bearings with anti-creep cage assist lend to guiding accuracy with minimum backlash, while noncontact optical limit switches and reference point switches with direction sensing in middle of travel range simplify use in automation tasks. Two encoder options are available.