ST series damping rigid support legs have loose isolation requirement in good environment violation condition. Air mount isolator apply dual-chamber, damping hole techniques to get very low resonance frequency and effectively isolate high frequency vibration leading to plate deformation. Besides, basing on the load and self-weight to select BAT or SAT support, mount high-pressure gas source (air compressor or nitrogen bottles) and gas path control system(height control valves and pipes ) to achieve automatic balance of table system