do i have to pre crush for a hammermill rock crusher
Small Hammer Mill Grinding 911 Metallurgist. For best performance and it is best to precrush the feed with a jaw crusher. At only 150 lbs, the 911MPEIC4000 is an ultraportable BLOWBAR TYPE impact crusher. The impact crusher can easily fine crush a feed of 3/4″ at some 250 kilo/hr.