PI’s A-630 series of low-profile rotary tables was recently extended by the new A-634 rotary stage with 150 mm table diameter and the A-638 model with 350 mm diameter. These high-precision, high-speed direct drive rotary tables are only 60 mm tall and provide high speed to 3,000 degrees/sec. For transmitted light applications, the A-688 model with a large aperture is available.