stainless steel screw centrifugal pump impeller – This screw centrifugal impeller uses a broad helical flow path wrapped around a central hub. The open sweeping geometry is associated with established non-clog and solids-handling pump designs, but hydraulic duty and suitability always depend on the customer-approved pump geometry and operating point.

Product Specifications and Custom Options
| Product type | Screw centrifugal pump impeller |
|---|---|
| Material | 316L, duplex stainless steel or customer-specified pump alloy |
| Manufacturing | Investment casting, hub machining, blade finishing and balance inspection |
| Finish | Blasted, passivated, polished or application-specific |
| Applications | Non-clog, wastewater and solids-handling pump designs based on approved geometry |
| Customization | Dimensions, interfaces and inspection requirements based on drawing or approved sample |
Product and Design Review
The blade profile changes continuously around the hub, making wax pattern control, section consistency and finishing access important. The shaft interface is machined from defined datums and the finished rotating part can be inspected for runout and the specified balance condition. AODSON does not alter hydraulic geometry without customer approval.
Key Manufacturing Features
- Broad helical blade profile
- Open flow-path geometry
- Machined shaft interface
- Material and balance options for pump duty
Materials, Manufacturing and Surface Finish
Precision casting produces the hub, blades and supporting geometry as one stainless component. CNC machining controls the shaft interface and reference faces. Blade finishing, runout and balance inspection are planned from approved geometry, rotational speed and customer acceptance criteria.
For this screw centrifugal pump impeller, the proposed route is Investment casting, hub machining, blade finishing and balance inspection. Final material, finish and testing remain subject to the approved drawing and service conditions.
Typical Applications
- Sewage and wastewater pumps
- Non-clog pump assemblies
- Process liquid transfer equipment
- Custom solids-handling pump programs
Quality Control and Approval
Quality checks can include material verification, blade completeness, key dimensions, bore and keyway geometry, runout and the specified balance condition. Hydraulic or aerodynamic performance remains the equipment manufacturer’s responsibility because it depends on the complete system and operating point.
OEM Customization and RFQ Information
AODSON supports drawing-based and sample-based production for OEM buyers, distributors and engineering teams. For a practical quotation, send:
- 2D drawing and 3D model, or clear sample photographs
- Material grade and operating environment
- Critical dimensions, fits, threads and inspection requirements
- Target quantity and expected repeat demand
- Surface finish, packaging and destination country
Request a quotation for this component or review related AODSON capabilities: Pump and Valve Components, Precision Casting, Inspection and Traceability.
Frequently Asked Questions
Can this screw centrifugal pump impeller be customized?
Yes. Geometry, mounting interfaces, material, finish and inspection can be manufactured from an approved drawing or sample. Feasibility is reviewed before quotation or tooling.
Which material grades are available?
The current recommendation is 316L, duplex stainless steel or customer-specified pump alloy. Final selection should consider corrosion, strength, temperature, wear and applicable customer standards.
What is needed for an accurate quotation?
Please provide geometry, material, quantity, critical tolerances, finish and delivery requirements. Describing the application helps engineering identify risks that may not be visible on the drawing alone.


