For that sort of production you need to talk to a few finish professionals who do production. The ballgame changes dramatically when you move into that sort of numbers as do the materials, the suppliers and the laws.
Myself, I have no experience in this sort of production, our pieces have much more handwork involved than what you will do and our schedules are much too slow. I would probably contact M.L. Campbell, but there's several companies who only deal with production facilities. Try posting this question on The Woodweb under professional finishing.
we will start soon
the prodution it will be around 150 pieces by day( table tops, shelfes,sides etc). some pieces have 80m/m high 2000m/m lengh 400m/m width.the spray will be airmix or airless(?)kremlin.
peices are fibreboarb with uv sealer( 2 coats) and 1coat of primer pu, if we need and pu top coat both sides.
how to avoid overspray in the back side without covering all area(back).
coler will be white,black, red