Workstations: Sciencedesk frames (passive isolation, active isolation, rigid non-isolation), accesories (wrist rest, shelves..). Passive Isolation: Load capacity: 40-180 kg. for the Standard model and 135-540 kg. to the Heavy duty model. Height adjustment range: +/- 20 mm. Air pressure required 60 PSI. Resonant frequency: 3,5 Hz. Measures from 750 x 750 mm to 900 x 1200 mm.. Please ask for other measures, we manufacture custom frames. Active Isolation: Load capacity: 700kg. Height adjustment range: +/- 20 mm. Air pressure required 80 PSI. Resonant frequency: vertical 1,6 Hz and horizontal: 1,2 Hz. Measures from 750 mm x750 mm to 900 x 1200 mm. Please ask for other measures, we manufacture custom frames. Rigid frame: No isolation. Load capacity: 700 kg. Height adjustment range: +/- 20 mm. Measures from 750 mm x750 mm to 900 x 1200 mm. Please ask for other measures, we manufacture custom frames. If you need further information, don't hesitate to contact us, please.