Abstract: A mobile rig for processing mineral material, comprising a feeder including a feed device for receiving mineral and a feeder conveyor arranged to convey mineral. The mobile rig includes a main chassis supporting a mineral breaker; and a discharge conveyor. The mineral breaker has an infeed region via which it receives mineral and a discharge region via which it discharges mineral after processing in the mineral breaker. The feeder conveyor is such as to convey mineral from the feed device to the infeed region of the mineral breaker and the discharge conveyor is such as to convey mineral from the discharge region of the mineral breaker. The rig includes a primary transport carriage on which the main chassis is supported.