Here is a server cabinet made for harsh environments. The Tripp Lite 12U Rack Enclosure Server Cabinet has adjustable mounting depths from 3″ to 32.5″ inch. It comes with a dust filter to protect against airborne particles. It has 1000lb weight capacity.
The cabinet has 4 fans to maintain proper airflow and keep your equipment cool. It has locking reversible front door and locking, removable side panels.