Estimate Jaw Crusher Capacity - Mineral Processing / MetallurgyCrusher Size (in.) Power Required (hp), Space between Rolls (max. size of feed) (in.) 1/8 (3/8).jaw crusher s size,jaw crusher s size,Jaw Crushers - Mineral Processing / Metallurgy - 911 MetallurgistIn sizing, we not that jaw crushers will only have around 75% . often dictated the max feed size of rocks going to the crusher.