CEC – Construction Equipment CompanyThe easy control system allows you to open the cone cavity to accomplish rock on rock crushing. This method of rock on manganese . CEC's track mounted two unit crusher and rambler screens are built in several sizes. The unit pictured is the 102 x . New CEC Sales Manager, Jimmy Mitchell. Jimmy brings to this position.cec rock crusher for sale,24 x 36 Portable Jaw Crusher – CEC24 x 36 Portable Jaw Crusher. CEC's 24 x 36 jaw plant is built on a heavy-duty “H” beam trailer with three axle spring suspension, air brakes, lights, fifth wheel pull, drop down, pin connected front legs, six jacking legs and optional hydraulic set up or run on legs. The plant comes with a 46” x 16' feeder or 52” x 20' feeder,.