SC Maintenance Units

So I started my space industry and started producing SC Maint Units. When I put them in my space center do the shuttles pick up all of the SC maint they can carry( the full extra space on the shuttle )or just a small number. I know this is a simple question. I just want to make sure. I have a fleet of 180 aging shuttles I need to maintain and I'm always moving assets between worlds. I make 176 SCMU a month when at full capacity. Thanks for an answer.

No zen they dont pick up all ur maintanfe units in ur soace center they pick up some not allot tho its a small number like 100 or so but make sure ur slace station has got a good bit