Small rock crusher ? | LawnSite
· If you keep looking long enough you'll find something inexpensive but don't get a crusher with a less than 12" x 7" jaw size. The picture below is on a recent job crushing approx 50-60 tonnes of concrete. My crusher is a 12" x 9". I used a small hydraulic rockbreaker to size the lumpy concrete which was leftover from a series of pours.