Southern Road Machinery and Shanyou Heavy Industry. There are many sand making machine manufacturers in our country. Nanfang Road Machinery and Shanyou Heavy Industry are the top sand making machine manufacturers in the country. The quality of the sand making machines they produce is very good. The sand making machine can be widely used in the medium and fine crushing (sand making) operations of various hard and brittle materials such as rocks, abrasives, refractory materials, cement clinker, quartz stone, iron ore, concrete aggregates, etc.