Atlas Copco WEDA L80N | Industrial Submersible Slurry Pump — 20 HP, 460V 3-Phase, 790 GPM, 4" ANSI Discharge

Stepping into full industrial slurry duty, the Atlas Copco WEDA L80N is a 20 HP submersible slurry pump engineered to move abrasive, solids-laden liquids across the heaviest applications in mining, quarrying, dredging, and industrial mineral processing.

Why a Slurry Pump?

If you've worn out a dewatering or sludge pump on quarry water, sand-and-gravel pit runoff, or any application that mixes abrasive solids into the flow, the answer is almost always: you bought the wrong pump category. Drainage and sludge pumps are designed around solids passage; slurry pumps are designed around solids survival. The WEDA L-series uses hardened wear plates, urethane-lined volutes, and a multi-vane semi-open impeller in high-chrome cast iron — every wetted surface is treated as a replaceable wear component.

WEDA L80N Performance

Engineering Highlights

• High-chrome cast-iron impeller — multi-vane semi-open design, ~65 HRC, optimized for solids up to 1"
• Hardened wear plate at the impeller inlet — replaceable as a single sacrificial wear component
• 4-inch ANSI flanged discharge — replaces NPT threading at this size class for stronger, leak-tight connection
• Double mechanical seal in stainless cartridge with oil-bath barrier between the seals
• 1,750 RPM operation — lower shaft speed extends wear life vs. the higher-RPM dewatering and sludge models
• Class F motor insulation with thermal protection in every winding
• Cable entry sealed against fluid ingress — eliminates the most common failure mode of submersible pumps

Common Applications

• Large-scale mining — mill feed, tailings transfer, deep-shaft dewatering with abrasive sediment
• Mineral processing plants — slurry circulation across major process unit operations
• Heavy industrial dredging — large reservoirs, mining ponds, river systems
• Phosphate, potash, and trona processing
• Coal preparation plants — fines circulation, refuse slurry
• Oil sands operations — primary and secondary slurry transfer
• Cement, lime, and aggregate process plants — high-volume slurry duty
• Major civil construction projects — large-bore tunneling, dam construction muck handling

How the WEDA L80N Fits in the L-Series

The L-series spans from the 5 HP L40N up to the 101 HP L110N. The L80N sits firmly in industrial territory — high enough to handle serious industrial slurry duty, requiring lifting equipment for deployment.

Built for Long Service Intervals

Slurry pumps are wear-driven assets. The WEDA L-series is engineered to show wear (so you can predict service intervals) rather than fail unexpectedly. Service kits cover the impeller, wear plate, double-seal cartridge, motor end-cap rebuild, and cable assembly. Atlas Copco's dealer network stocks the most-common wear parts and offers field-service rebuilds.

SKU 8381070304 · WEDA L80N · 460V 3-Phase Y-series, 60 Hz · 4" ANSI flanged discharge · 1" max solids · CSA certified · designed for continuous industrial slurry duty.