« Cedarapids JP3054 Portable Jaw Crushing Plant | Main | 4' Standard Cone Crushing Plant 2 ». Thunderbird 4230 Portable Jaw Crushing Plant. Thunderbird 4230 Portable Jaw Crushing Plant 30" X 42" Jaw Crusher, Variable Speed Vibrating Grizzly Feeder, Discharge Conveyor, Runon Support Legs, Three Axle Chassis, All Electric.