WEDA Pump / Atlas Copco — Industrial Submersible Dewatering & Slurry Pumps

Global supply of heavy-duty electric submersible pumps from WEDA Pump / Atlas Copco (Sweden / Atlas Copco Power Technique). Drainage and slurry series RL2010, RL2030, RL4060, RL6070, and heavy mining RV series, alongside durable wear assemblies and seal kits from SpareX.

Submersible Drainage Pumps WEDA RL2010

The WEDA RL2010 submersible drainage pump weighs only 12.5 kg while delivering a discharge capacity of 600 l/min and 15.1 m head. Its lightweight aluminum housing and integrated grease-filled seal unit with a tungsten carbide wear sleeve ensure reliable site dewatering.

Discharge rate up to 600 l/min or 36 m3/h at max head of 15.1 m
Lightweight aluminum body design with total pump weight of 12.5 kg
Cartridge oil seal assembly featuring a tungsten carbide wear sleeve
Replacement cable entries, rubber diffusers, and open impellers

Drainage and Sludge Pumps WEDA RL2030

The WEDA RL2030 combines portable handling with a discharge head of up to 30 m and flow rate of 1500 l/min (90 m3/h). Designed for dirty water with sand, bentonite, and mud, it provides dependable dewatering across construction trenches and aggregate quarries.

Capacity up to 1500 l/min or 90 m3/h with discharge head reaching 30.0 m
Vortex impeller geometry engineered for viscous slurry and dirty runoff
Lubricated oil chamber with wear-resistant radial lip seal protection
Replacement diffusers, suction strainers, and bearing assemblies

Heavy-Duty Dewatering Pumps WEDA RL4060

The heavy-duty WEDA RL4060 dewatering unit delivers 3400 l/min (204 m3/h) at a total head of 30 m. Equipped with a 7.5 kW motor, dual silicon carbide mechanical seals in oil, and protective epoxy coating, it serves as an industrial benchmark for underground mining.

High dewatering capacity of 3400 l/min (204 m3/h) at head of 30.0 m
Nominal shaft power of 7.5 kW with 16.0 A rating on 380-415 V grid
Dual silicon carbide mechanical seals running in an oil reservoir
Impeller replacement kits, shaft sleeves, and NVB level controls

High-Capacity Dewatering Pumps WEDA RL4150 and RL6070

The heavy industrial WEDA RL4150 and RL6070 series move from 3000 to 4700 l/min (up to 282 m3/h) with heads up to 35 m. Featuring opposed angular contact bearings, star-delta starters, and electronic level controls, they ensure continuous deep drainage.

Max discharge rate of 4700 l/min at pump head up to 35.0 m
Electric motor drive up to 11.8 kW operating on 380-415 V and 500 V
Heavy-duty opposed angular ball bearings immersed in an oil bath
Replacement diffusers, motor stators, NVB sensors, and power cables

Heavy-Duty Mining Slurry Pumps WEDA RV Series

Submersible mining slurry pumps of the WEDA RV Series handle dense, abrasive slurries under extreme quarry conditions. Impellers and wet-end components made from MetaChrome alloy with over 600 HBN hardness deliver exceptional durability in ore processing plants.

Discharge diameters from 50 to 250 mm for high-density slurries
Installed electric drive motor ratings from 6.0 kW up to 100 kW
MetaChrome alloy with 25% chromium and >600 HBN hardness against wear
Wear plates, abrasive-resistant volutes, and vortex slurry impellers

Hydraulic Components and Mechanical Seals WEDA

Original WEDA Pump hydraulic spares include modular mechanical seal cartridges, precision-machined impellers, wear diffusers, and oil inspection housings. Timely replacement of wear parts prevents stator water ingress and restores nominal pumping efficiency.

Cartridge mechanical seals made from silicon carbide and tungsten carbide
Protective rubber diffusers and precision clearance adjustment rings
High-load bearing kits pre-packed with anti-corrosion lubricant
Fast component identification by pump nameplate and serial number

Hydraulic Design and Lightweight Aluminum Construction

WEDA Pump / Atlas Copco electric submersible pumps are engineered for demanding dewatering operations across construction sites, quarries, and tunneling projects.

The structural housing components are precision-formed from corrosion-resistant aluminum alloy, reducing overall machine mass compared to gray iron units and facilitating manual relocation without crane rigs.

The internal hydraulic passage minimizes turbulence and vortex losses during dirty runoff pumping.

Motor cooling is achieved via the surrounding liquid medium moving across the stator cooling jacket. This streamlined layout ensures stable pumping during partial submergence and short dry-running periods.

Smooth flow channels prevent sand sedimentation and silt accumulation at the pump base, sustaining nominal hydraulic efficiency through prolonged working shifts.

Mechanical Face Seals and Oil Barrier Chamber

Motor chamber integrity in WEDA pumps is maintained through a dual-barrier mechanical seal assembly operating in an isolated oil reservoir.

The seal faces are manufactured from silicon carbide and tungsten carbide, eliminating abrasive wear when handling groundwater loaded with quartz sand, bentonite, and drill mud.

The oil reservoir provides continuous lubrication and heat dissipation from dynamic friction surfaces while acting as a diagnostic buffer: an inspection plug with an integrated dipstick enables rapid verification of oil clarity, identifying seal wear before moisture reaches stator windings.

The modular seal cartridge accelerates turnaround time during planned maintenance.

Wear-Resistant Impellers and MetaChrome Diffusers

For abrasive slurry handling, WEDA pumps utilize open or vortex impellers made from proprietary MetaChrome alloy containing 25% chromium. The structural hardness exceeding 600 HBN preserves vane profiles and hydraulic geometry against crushed gravel, ore tailings, and abrasive slurry.

An adjustable rubber diffuser compensates for unavoidable operational wear: simple tightening of external adjustment screws restores the working clearance between impeller vanes and the suction flange without dismantling the wet end.

This maintains rated discharge head and efficiency over hundreds of operating hours in mining pits.

WEDA+ Electronic Protection and Phase Rotation Control

The enhanced WEDA+ unit features an integrated electronic protection module that monitors critical electrical parameters across the three-phase power circuit.

Built-in phase control detects improper line rotation upon grid connection, automatically blocking start-up or correcting rotation to eliminate mechanical risk.

Bimetallic thermal switches embedded in stator windings disconnect power during excessive motor heating, while optional NVB electronic level sensors automate pump cycling based on sump liquid elevation. This prevents dry running and safeguards insulation against internal short circuits.

Preventive Maintenance Protocol and Inspection Regimes

Preventive maintenance of WEDA submersible pumps follows a structured service schedule to avoid unscheduled downtime in critical drainage operations.

Weekly checks include inspecting power cable insulation integrity, verifying strain relief tightness, and confirming free shaft rotation by hand through the strainer.

Every 500 operating hours, oil clarity in the buffer reservoir is inspected to confirm seal condition.

Comprehensive overhaul involves measuring stator winding insulation resistance with a 1000 V megohmmeter, inspecting bearing seats, and recalibrating the clearance between the impeller and diffuser.

Engineering Service, Diagnostics and Overhaul Support

SpareX engineering specialists provide maintenance planning, onsite diagnostics, major overhauls, and commissioning support for WEDA Pump units worldwide. Field engineers conduct bearing vibration analysis, motor chamber pressure testing, and protective switchgear validation on site.

Selecting the optimal WEDA pump configuration depends on flow demand, static discharge head, fluid specific gravity, and abrasive solid concentration.

Major overhauls include bearing replacement, hydraulic clearance restoration, mechanical seal renewal, and dynamic rotor balancing followed by hydro-testing under full load.

WEDA Pump / Atlas Copco and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of WEDA Pump / Atlas Copco and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.