300KW High-Voltage Submersible Water Pump for Bauxite Mine Dewatering with Stainless Steel Impellers

The 400QJH210-300-300KW is a high-voltage, multistage deep-well submersible pump engineered specifically for bauxite mine dewatering, mine drainage, and other demanding industrial water-lifting applications requiring high head capacity.

Configured for three-phase 3000V, 50Hz power supply with a rated motor output of 300kW, this unit combines a high-strength cast-steel pump body, stainless-steel impellers, and semi-stainless-steel motor construction. This material selection ensures reliable mechanical performance while enhancing component durability in challenging underground and submerged operating environments.

The pump can be installed in mine shafts, boreholes, sumps, or dedicated drainage wells, effectively transferring groundwater and accumulated mine water to surface settling ponds, treatment systems, or designated discharge points.

Groundwater infiltration, rainfall, and process water accumulation in bauxite mining areas require effective dewatering to protect production equipment, maintain access routes, and support continuous mining operations.

• Open-pit bauxite mine dewatering
• Underground bauxite mine drainage
• Mine-shaft water removal
• Groundwater-level control
• Deep borehole water lifting
• Continuous mine-area drainage
• Emergency drainage after heavy rainfall or water inflow
• Clean-water transfer around mineral-processing facilities
• Other high-head industrial water-supply and drainage projects

Depending on project requirements, the complete pumping system may include:

• High-voltage pump control cabinet
• Suitable soft starter or high-voltage starting equipment
• Phase-loss, overload, short-circuit and undervoltage protection
• Motor temperature monitoring
• Automatic water-level control
• Check valve, isolation valve and pressure gauge
• Riser pipes and high-pressure connections
• High-voltage submersible power cable
• Standby pump or emergency dewatering unit

Accurate water analysis is essential before final pump selection. Mine water containing high concentrations of sand, abrasive particles, chlorides, acids, alkalis, or other corrosive substances may require upgraded materials for impellers, stage casings, shafts, fasteners, and sealing components.

• Required flow rate and total dynamic head
• Well depth, internal diameter and installation depth
• Static and dynamic water levels
• Pipeline length, diameter and elevation difference
• Liquid temperature and pH
• Chloride concentration and other corrosive components
• Sand content, particle size and solids concentration
• Available voltage, frequency and starting method
• Required daily operating hours
• Cable length and distance to the control cabinet
• Standby-pump and automation requirements

Primarily intended for bauxite mine dewatering, mine drainage, groundwater-level control, deep-well water lifting, and other industrial applications requiring high flow and high head capacity.

Reference capacity is 210m³/h with a reference head of 300m. Actual duty points must be verified against system curves, pipeline losses, and dynamic water-level changes.

Configured for three-phase 3000V, 50Hz power supply with a 300kW motor. High-voltage control equipment, starting systems, and cables must be engineered for site-specific supply conditions.

Impellers are manufactured from stainless steel, with specific grade selection based on pH, chloride concentration, and mine water corrosiveness.

Suitability depends on concentration, particle size, and hardness of solids. Water with high sand content or abrasive particles requires separate wear assessment and may necessitate upgraded materials or modified hydraulic configurations.

The unit can be configured for continuous drainage service. Final operating limits depend on motor cooling, installation depth, water-level variation, liquid temperature, and selected monitoring and protection systems.

Yes. High-voltage submersible cables, control cabinets, starting equipment, water-level controls, and motor-protection functions can be configured for specific well depths and site electrical systems.