The sand production line is mainly used for limestone sand making and by adding water sand washing equipment it can wash away powder in the sand. It is suitable for sand factory, which is strict in environment and can use local materials, and produce qualified sand directly. Stones, by vibrating feeder evenly to jaw crusher for coarse crushing, will then be through belt conveyor into Symons cone crusher for further crushing. After fine grinding, materials will be delivered to the sand making machine for sand making. In meeting the requirements of the finished product granularity, the materials will be fed into sand washing machine to clean. After cleaning, the finished product output by conveyor belt is the finished product. Materials which do not meet the product particle size requirements will be delivered from the vibrating screen to return to the sand making machine for second processing. This forms closed-circuit circulation many times. Finished product granularity can be combined and graded according to the needs of users.