Aerotech offers its ANT-L-Z crossed-roller Z-axis nanopositioning stages in two models, the ANT95-L-Z and ANT130-L-Z, and in two accuracy grades. The stages feature noncontact direct-drive technology for high-precision positioning, disk-drive fabrication, fiber alignment, optical delay element actuation, sensor testing and scanning processes. A nearly frictionless counterbalance mechanism helps to maintain performance levels while minimizing motor heating, the company says. The counterbalance is user-adjustable from 1 to 10 kg, depending on the stage model.
According to the company, the stages’ direct-drive technology eliminates backlash for accurate, repeatable nanometer-scale motion. The stage’s 2-nm minimum incremental step size and anti-creep crossed-roller bearings promote accuracy, position repeatability and in-position stability. Universal mounting and tabletop patterns enable easy system integration, the company says. The entire ANT nanopositioner family of linear, rotary, lift, Z-axis and goniometers can be combined for flexible system designs and multi-axis configurations.