Suction dredge, also known as a suction dredging platform, refers to a vessel that uses the force of water to propel a high-pressure water jet, which then washes away silt (or fine sand, sea sand, etc.) that is then pumped through a pipeline to its destination.

Qingzhou Yongsheng Environmental Protection Dredging Equipment Co., Ltd. produces innovative sand dredging vessels that are easy to operate and highly efficient. They are suitable for river channel dredging, lake and reservoir sediment removal, coastal reclamation, port and wharf cleaning, and sand extraction. The equipment consists of the hull, conveying system, water intake system, and emptying system. The conveying system includes power, clutch, slurry pump, etc., while the emptying system includes high-pressure water pumps, vacuum extraction devices, etc.