Name: washing machine (EDIT: clean-a-tron?)
Description: the basic idea is [new machine]+[damaged non electric armor]+[eu]=[fully repaired piece of non electric armor]. if this is to unbalanced we could just say something like since the machine only cleans it only repairs armor that is less than 50% damaged
EDIT:to be more realistic we could say that different armors have different points to which they are beyond cleaning. so non metallic armor's like leather, rubber, static-boots, and diamond can be cleaned up to 60% damaged, gold and composite armor can be cleaned up to 30% damage, and everything else can be cleaned up to 15% damage
recipe:
some concoction of water buckets, sticks, a machine block, and an electric circuit?