Shaft fit, keyway, hub height, bolt pattern and register diameters are measured, not assumed. A bore 0.2 mm loose makes the rest of the part worthless.
Chloride content, abrasion and temperature drive the choice — not the name of the fluid. PMI on your sample tells us what the original actually was.
Every rotating component is dynamically balanced to ISO 1940 and ships with the grade stated on a report, alongside the material certificate.
Aftermarket replacements are quoted as single pieces. The casting route changes with quantity, so the unit price moves — the process does not.
Six component families covering the wear parts of centrifugal, slurry and process pumps.
Closed, semi-open and open impellers cast and CNC-finished to your drawing, dynamically balanced before shipment.
View details ›Volute and diffuser casings assessed around flange faces, registers and nozzle locations for drop-in fit.
View details ›Turned, ground and keyed shafts with controlled runout, thread and sleeve seats machined to tolerance.
View details ›Case and impeller wear rings in matched pairs, clearance set to the service and the pumped fluid.
View details ›Seal components and stationary seats, lapped faces, supplied to sample or to a dimensioned print.
View details ›Sleeves, spacers and bearing housings machined from bar or castings in matching alloys.
View details ›The same geometry is a different part in three different plants.
| Alloy | EN / spec | Typical service |
|---|---|---|
| CF8M / 316SS | 1.4408 | General chemical duty, mild corrosives, water and wastewater |
| CD4MCu / CD4M | 1.4517 | Duplex — chloride and erosion resistance, seawater and slurry |
| CN7M / Alloy 20 | 2.4660 | Sulphuric acid and mixed acid service |
| WCB carbon steel | 1.0619 | Clean water, oils, general non-corrosive duty |
| Bronze C95800 / C90300 | — | Seawater, marine and fire pump components |
| High-chrome 27% Cr | A532 | Abrasive slurry, mine dewatering, ash handling |
Each of these becomes its own page in the production build — the pattern the reference site uses to capture long-tail search traffic.
Investment casting where the vane detail matters and volumes are low, shell mould where a batch has to repeat, sand casting for larger envelopes and thicker sections.
Yes — that is most aftermarket work. We measure the interfaces, reconstruct the vane profile and state on the quotation which dimensions came from the sample.
Yes. Case and impeller rings are quoted and shipped as a pair, with the running clearance set for the service and the pumped fluid.
One piece for aftermarket replacements. Tooling cost is what moves between a single piece and a production batch.
Upload a 2D drawing, 3D file, nameplate photo or a picture of the worn part. We review material, tolerances, process route and inspection needs, then come back with a firm quotation.
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