They have drive mechanisms, encapsulated ball screws, and stepper motors with incremental linear encoders included. Made of high-strength aluminum, the tables weigh less than 22 lbs. and offer speeds up to 100mm/s with accelerations of 500 mm/s2. They are suitable for Class 10 clean rooms.

Steinmeyer Inc., 217 Middlesex Turnpike, Burlington, MA 01803, (781) 273-6220, www. steinmeyer.com