We are presently shipping 2 motorized hatches of 5.6 x 5.2 m for a Lithium mine located in Salar de Ratones, in Salta, Argentina, for the regular change of the filter elements that require to be renewed in the process of separating said mineral, thus 1. avoiding the use of large pools and 2. speeding up production. Do you have a similar need? Any kind of hatch? Fire Vents? Doors at floor level?