Integrated XY Ball-Screw Stage
Aerotech PlanarSL stage features low-thermal expansion glass scales.
Aerotech introduced its line of PlanarSL mechanical bearing, ball-screw-driven XY stages. The line features a precision-ground and preloaded ball screw that’s engineered to drive directly through the centers of friction and stiffness. In addition, the PlanarSL is available with low-thermal expansion (3.3 ppm/˚C) glass scales on both axes for high-accuracy and repeatable positioning. The linear encoder, available with amplified sine (1 Vpp) or 0.1 µm TTL digital outputs, is mounted near the centers of action for high-accuracy positioning. The stages comes with a 24 VDC bipolar stepper motor. The company also offers brushless and brush DC motors with preconfigured, high-resolution rotary encoders.