Crown-drilling pumping sand:
When pumping sand 5-25 meters depth, yield 30-600 cubic meters /, equipped with power diesel engines. The mechanical advantage of tank unloading sand at the bottom of the door to the shore activities, special pumping sand and then pumped to the shore, time-saving and efficient, which cutter suction pumping sand can punch through 4-10 meters of mud layer, thereby extracting the surface mud layer sand and can be transported to the shore, one of the opposite sex of the machinery is mainly aimed at the general suction dredgers and sand will not work and the development of geographical environment designed for pumping sand.
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