You need them for loading, unloading, and smelting. Space Age (the most recent DLC) required me to use several 6:4 and 6:3 balancers. I usually start by hacki

You need them for loading, unloading, and smelting. Space Age (the most recent DLC) required me to use several 6:4 and 6:3 balancers. I usually start by hacking it. Once I place a premade balancer, throughout dramatically improves.