Submersible dredge pump is a heavy-duty pump designed to operate fully submerged while handling abrasive slurries containing sand, gravel, and solid particles. It integrates the operational convenience of submersible motors with the superior wear resistance of slurry pump components. Submersible dredge pump body and impeller are made of high-chromium alloy or rubber-lined materials to withstand severe abrasion and corrosion. A double mechanical seal with oil chamber ensures reliable isolation of the motor from the pumped medium. Available in submersible or dry‑installation configurations. Same hydraulic end fits both-whether pulling from a wet pit or mounted in a pump room. Handles thick slurries, digested sludge, and industrial waste with minimal maintenance.
Product Parameters
| Flow Rate |
Up to 2500 m³/h |
| Head |
Up to 120 m |
| Power Range |
2.2 – 500+ kW |
| Motor Speed | 980 / 1400 rpm |
| Materials |
High‑chromium alloy (≥28% Cr) or natural rubber lining |
| Seal |
Double mechanical seal with oil chamber and leak detection |
| Cable |
Heavy-duty rubber sheath, watertight entry |
| Standards |
ISO 9001 certified, designed per international specifications |
Features
Fully Submersible Design
Motor and pump operate as a single sealed unit, submerged directly in the slurry. No suction limitations, no priming, no vibration transmission through long shaft lines. Suitable for water depths up to 50 m.Exceptional Wear Resistance.
01
Double Mechanical Seal
Two independently mounted silicon carbide seals with intermediate oil chamber. Lower seal operates in slurry, upper seal in oil bath. Oil chamber acts as barrier and lubricant; optional moisture sensors detect seal wear before motor damage occurs.y
02
High Efficiency
Advanced hydraulic design and precision casting deliver high operational efficiency and energy savings
03
Easy Maintenance
Replaceable wear parts and cartridge-type seals simplify servicing.
04
Agitator Design
High speed impeller at pump inlet fluidizes settled sand and gravel, increasing solids concentration in suction zone. Achieves slurry density up to 40% by weight without external jetting
05
Main Applications
River and port dredging: maintenance dredging of navigation channels, removal of accumulated silt at dock walls, beach nourishment sand pumping
Mining: tailings slurry transfer to impoundment, thickener underflow pumping, open pit mine dewatering with high solids
Power plants: bottom ash sluice systems, economizer ash hopper evacuation, coal pile runoff sumps, FGD slurry transfer
Construction: foundation dewatering in sandy soils, tunnel construction water handling, caisson sinking operations
Factory Profile
Hebei Jutong Pump Industry Co., Ltd. is a leading manufacturer specializing in slurry pumps and submersible pumps. Founded in 2021 by a team with 35 years of industry experience, we operate a modern facility with complete in-house production: casting, machining, assembly, and testing. Our quality management system is ISO 9001 certified. Products are exported to mining and infrastructure projects in Chile, UAE, and beyond. With a strong R&D team and a commitment to innovation, we provide reliable pumping solutions tailored to customer needs.
FAQ
Q: What is the maximum pumping depth?
A: Standard design operates at depths up to 50 m. For deeper applications, special motor configurations and cable lengths are available.
Q: How often does the mechanical seal need replacement?
A: In normal dredging service with clean water flush, seal life typically exceeds 8,000 hours. Moisture sensors in the oil chamber alert operators before failure, allowing scheduled maintenance.
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