Impellers and Rotating Components
Impellers casings heads and rotor components for compressors and turbines
What Impellers and Rotating Components Is and Who It Is For
Compressor and turbine work covers casings, heads and impellers, and for steam and gas turbines also diaphragm rings, nozzle rings, diffuser rings, inlet rings, shroud rings, retaining rings, seal rings, support rings, blade rings, outlet rings and heat shields. These are forged in nickel based alloys and stainless steels and then machined on the 5-axis centre.
Key Benefits
- Nickel based alloys and stainless grades used in real turbine service
- 5-axis machining for blade and vane geometry
- Rings and casings from the same programme as the impellers
- Testing supplied with the finished component
| Power generation materials | 718, Waspaloy, 230, X, 617, 625, 901, 903, 909, HR-120, 105, CrMoV, NiCrMoV, X22CrMoV, 304, 310 |
|---|---|
| Steam turbine scope | diaphragm rings, nozzle rings, diffuser rings and flanges |
| Gas turbine scope | inlet rings, shroud rings, retaining rings, seal rings, support rings, blade rings, outlet rings, casings and heat shields |
| Compressor scope | casings, heads and impellers |
Who It Is For
- Turbine and compressor OEMs
- Power plant maintenance contractors
- Generator and motor manufacturers
Problems It Solves
- Rotating parts in the wrong alloy creep at operating temperature
- Blade and vane geometry needs 5-axis capacity that few forges have
- Ring sets bought separately do not stack concentrically
Technical Features
- Nickel based alloys and stainless steels
- Full turbine ring family
- 5-axis machining
- Heat treatment and testing included
Where Impellers and Rotating Components Is Used
Compressor casings, heads and impellers
Compressor casings, heads and impellers
Steam turbine diaphragm, nozzle and diffuser rings and flanges
Steam turbine diaphragm, nozzle and diffuser rings and flanges
Gas turbine inlet, shroud, retaining, seal, support, blade and outlet
Gas turbine inlet, shroud, retaining, seal, support, blade and outlet rings, casings and heat shields
Forgings for medium to large generators and motors
Forgings for medium to large generators and motors
Materials
- Alloy 718
- Waspaloy
- Alloy 625
- Alloy 617
- CrMoV
- NiCrMoV
- X22CrMoV
- 304
- 310
Quality Control
- Testing supplied with the value added service package
- Dimensional inspection after final machining
- Material certificate for each heat
Customization Options
- Component geometry to drawing
- Superalloy grade selection
- Machined or rough delivery
How We Make It
Drawing
Drawing and material specification review
Forging or ring rolling
Solution
Solution and ageing heat treatment as specified
Rough machining
5-axis finish machining
Testing
Testing and inspection
How It Compares
Nickel based alloys cost far more than stainless per kilo and are specified only where the temperature and creep duty require them. We supply both, so the choice can be made per component.
Use Guide
- Confirm the alloy and the heat treatment specification with the order
- State the operating temperature so grade advice can be given
- Agree the testing scope before production
Often Ordered Together
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Seamless Rolled Rings
Rolled rings for gears bearings flanges and tooling in alloy and stainless grades
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CNC Machined Forgings
Forgings and castings finish machined on a 5-axis CNC centre
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Questions Buyers Ask About Impellers and Rotating Components
Which superalloys do you work with?
718, Waspaloy, 230, X, 617, 625, 901, 903, 909, HR-120, 105, CrMoV, NiCrMoV, X22CrMoV, plus 304 and 310 stainless.
Do you supply complete turbine ring sets?
Yes, the programme covers diaphragm, nozzle, diffuser, inlet, shroud, retaining, seal, support, blade and outlet rings.
Are impellers machined in house?
Yes, on the CNC machining centre which includes a 5-axis machine.
Get a Quote for Impellers and Rotating Components
Send the drawing, the quantity and the delivery condition you need. We reply with price, lead time and a sample plan.