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Slurry pumps and their spare parts: impellers, liners, expellers
Pumps and spare parts for mining and aggregates: horizontal centrifugal (our specialty), vertical, sump, metering and water pumps, with original and alternative spare parts from leading brands and help to identify your reference.
Pumps we supply
We supply all types of pumps and their spare parts, specialising in horizontal centrifugal slurry pumps, like the ones in the photos.
- Horizontal centrifugal pumps
- Vertical, submersible and sump centrifugal pumps
- Metering pumps
- Water pumps
- Applications: pumping of slurries, pulps and acid water, and filter presses
- Spare parts and components for all of them
In mining and aggregates, the centrifugal pump moves abrasive slurry: sand, fines, tailings. Besides the spare part, we diagnose on site: premature wear, cavitation and adjustment of the operating point.


Spare parts we supply
We supply all the spare parts of a centrifugal slurry pump, and also the complete pump.
- Complete pump
- Impellers, in high-hardness alloys, rubber or polyurethane
- Expeller and expeller cover
- Liners, including the volute when the liner is metal, and casings
- Suction and side wear plates
- Stuffing box cover, gland and packing
- Lantern rings, shaft sleeves and labyrinths
- Mechanical seals, oil seals, gaskets and O-rings
- Shafts, bearing housing, bearings and rolling bearings
- Bolts and fasteners

Cross-section of a horizontal centrifugal pump, with numbered components.

Cross-section of the shaft and bearing assembly.
The exact list depends on the pump model: send us your reference, or tell us the part number from the drawing.
In natural rubber




In steel







Components





Casings, impellers and other spare parts for centrifugal pumps.
Impeller and liner material
| Material | Chosen for | Things to bear in mind |
|---|---|---|
| High-hardness alloy (high chrome) | Very abrasive slurries with coarse particles | Less impact-resistant; sensitive to extreme pH |
| Natural or synthetic rubber | Fine, abrasive slurries, no large rock | Does not tolerate high temperatures or very angular, coarse particles well |
| Polyurethane | Medium abrasion with fines, wet environments | Depends on the hardness and the impeller design |
The table is indicative; the final material is defined according to the slurry, the particle size and the operating speed.
Original and alternative spare parts from leading brands
We can supply original or alternative spare parts: you choose. We verify every reference before offering it.
They fit centrifugal water and slurry pumps from leading brands, in mining, quarries, gravel pits and treatment plants. Tell us the manufacturer, model and part number of your pump, and we will confirm whether we can supply it.
What we check before offering you a part
- Dimensions: measurements and fit against the original part or the drawing
- Material: alloy, rubber or polyurethane, and hardness, according to the application
- Weight and balance on impellers, to avoid vibration
- Operating conditions: fluid, temperature and speed of your pump
- Warranty on the part we offer you

How to identify your spare part
- Manufacturer, make, model and size of the pump (nameplate)
- Part number or exploded drawing
- Photo of the part and of the assembled pump
- Operating data: fluid, flow rate, head, % solids, maximum particle size
With that data we locate the reference and give you a price. Depending on the reference, the spare part may be available for immediate delivery, custom-made or imported: contact us and we will sort it out as soon as possible.
Signs of wear in a slurry pump
- Drop in flow or pressure at the same operating speed
- Increased noise and vibration, sometimes a sign of cavitation
- Leaks at the seal or the stuffing box
- Higher motor consumption for the same flow rate
Frequently asked questions
Are spare parts available for immediate delivery?
It depends on the reference: there are parts for immediate delivery, custom-made parts and imported parts. Send us your reference and we will sort it out as soon as possible.
Can I order just one part?
Yes, we supply individual parts as well as assemblies.
How do I know which impeller my pump needs?
With the pump nameplate and a photo of the impeller or the exploded drawing we identify it.
Are the spare parts original or alternative?
We can supply both original and alternative spare parts. Tell us your reference and we will outline the options.
How do I know they will fit my pump?
We compare dimensions and drawings with your reference before supplying, and we confirm it to you in writing.
Do you carry out on-site diagnosis?
Yes: premature wear, cavitation and adjustment of the operating point.
Tell us what you need
Contact us and we will sort it out as soon as possible. Tel. 611 777 957 · comercial@asemining.com