The large flow marine sand pumps were designed and produced by Tai’an Ocean Pump Industry Co., Ltd. The large flow marine sand pumps are diesel sand pumping pumps, which are suitable for large-scale projects such as sand pumping, dredging, and hydraulic filling. Large flow marine sand pumps are generally divided into two types. One is a large-diameter impeller type. The outstanding advantages of this type of sand pump are high head and long sand discharge distance. A set of pumps can achieve high concentration and long-distance transportation. The second type is a wide impeller type. This type of sand pump has a large flow rate and a large amount of sediment pumped per unit time. It is suitable for pumping floating sand from large rivers.



1. Features of marine sand pumps
1.1 Material: The flow-through parts are made of cast iron, cast steel or highly wear-resistant and corrosion-resistant chromium alloy.
1.2. Long bearing life. The bearing assembly consists of a large diameter shaft and a short overhang.
1.3. Unique innovations in hydraulic and structural design.
1.4. The dredging depth is large, the density of dredged mud is high, the NPSH (net positive suction head) is good, and the suction head capacity is strong.
1.5. It is suitable for sand suction dredging, ship mud pumping, sea reclamation, dock construction, tailings transportation in the power and metallurgical industries, and coal washing industry filtration of coal sludge
The underwater suction depth can reach 35 meters, the discharge head can reach 60 meters, and the discharge distance can reach 1000 meters-1500 meters, without the need for a booster pump. The gravel size is allowed to pass up to 80mm.
2. Background of the selection of large-flow marine sand pumps
In 2021, an old customer in the Philippines consulted us about a large-flow sand pump. The user had previously chosen our 10-inch portable sand pump, but the current pump type can no longer meet the current sand pumping needs. It is hoped that Taian Ocean Pump Industry’s technical engineers can choose a large-flow sand pump that adapts to the current working conditions. The customer’s requirements are as follows:
There is a sand pumping pit in the river channel, and the sand grain size is about 2mm, which is relatively coarse.
The sand discharge distance is 2000 meters.
The production requirement is to pump 300-400 cubic meters of sand per hour.
There is no pipeline, and the pipeline data needs to be provided by Taian Ocean Pump Industry Co., Ltd.
Selection process of large-flow marine sand pump
Although the particle size is 2mm, it is coarse sand. There are individual gravels in the river channel. It is necessary to select a sand pump with a wide flow channel to avoid blockage of the flow channel.
The customer requires a sand discharge distance of 2000 meters. It is necessary to select a sand pump with a higher head. No booster pump is required. The head is enough to reach 2000 meters.
The sand discharge volume is required to be 300-400m3/h, and a large-capacity sand pump needs to be selected.
3. Selection results of large flow marine sand pump
Pump model: 400GN-50
Displacement: 2600 cubic meters/hour
Lift: 50 meters
Matching power: 600kw
Matching diesel engine: Weichai X8170 600kw/1350rpm
Matching gearbox: 600 type 2:1



Sand pumps are widely used in pumping systems to transport sand and gravel sediments to long distances. Ocean Pump Industry is a leading sand pump machinery designer, manufacturer and exporter, dedicated to providing sand pumping equipment and dredging equipment to customers around the world. We have more than 30 excellent sand pumping experts and a 15,000 square meter factory. We have produced 4 series of more than 20 types of sand pumps, mud pumps, gravel pumps, dredgers and related parts to meet your pumping needs. Our main products include simple sand pump, mud pump, gravel pump, submersible mud pump, dredging pump, mining pump, sand dredging pump, small dredging equipment, dredger, dredger, submersible dredger, suction dredger, cutter suction dredger, mechanical cutter suction dredger, hydraulic cutter suction dredger, dredging equipment, sand pipe, float, rubber hose. Product innovation and customer satisfaction are our continuous commitment to all partners. We have provided professional pump solutions and services to more than 60 countries. Hope to be your partner.