RE-thinking the one conduit, maybe??
2" is legal for 36-#8 (fill) but you need 43. 2x2" drop you to 22 conductors each, but still 45% derate leaves you at #8.
3 conduits, 14 circuits (5-5-4)16 conductors, 50% derate, back to #10. 1/2" or 3/4" for each machine, panel to machine...back to #12 unless there is a VD issue for length.
Other options? Bus Duct? There are 'small amperage' bus ducts available. Cost effective??
Like I said above....this can get really ugly, depending on when that 'number of conductors' rears its ugly head!!
