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Winnington Casting CO.,LTD
Winnington Casting Co., Ltd Stainless steel, Carbon steel, Alloy steel Casting supplier providing precision investment casting using silica sol lost wax process. TUV ISO certificated investment
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Stainless Steel Investment Casting Foundry For 1.4409 Pump Impeller CNC Machined

Winnington Casting CO.,LTD
Winnington Casting CO.,LTD
City: Huizhou
Province/State: Guangdong
Country/Region: China
Tel: 86-752-2652780-309
Contact Person:
Mrs Sophia Peng

Stainless Steel Investment Casting Foundry For 1.4409 Pump Impeller CNC Machined

Place of Origin : China investment casting foundry
Brand Name : Winnington investment casting foundry
Certification : PED/AD2000
Model Number : Investment casting foundry 002
MOQ : 20kg investment casting foundry
Price : Quote on CAD drawings investment casting foundry
Packaging Details : Pallet packing for ocean shipment investment casting foundry
Delivery Time : 30-90 days in investment casting foundry
Payment Terms : TT,LC
Supply Ability : 130 Tons/month as investment casting foundry
Product name : Investment Casting Foundry
Casting process : lost wax method
Casting process type : Ceramic shell lost wax casting
Machining : CNC machining, CNC lathe in house
Applications : Chemical, Valves and Pumps, Marine, Medical,Transportation, Food Machinery
Material : stainelss steel 1.4409
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Stainless Steel Investment Casting Foundry For 1.4409 Pump Impeller with CNC machined finish.

Quick Detail:

  • Investment casting foundry for pump impellers;
  • Casting process: lost wax method;
  • Material: stainelss steel 1.4409;
  • Weight: 1.12kg.
  • Surface: CNC machined surface (machining in house);
  • Dye penetration and X ray inspection service available at extra charge.


Winnington casting specializes in manufacturing precision cast pump impellers of different types:unshrouded impeller, shrouded impeller .

Material we can cast are listed below:

  • Stainless steel: 300 series Austenitic, 400 series Hardenable, Duplex etc
  • Carbon steel: 10XX series, 11XX series etc
  • Alloy Steel
  • Tool steel
  • Nickle based alloy


Maximum Cast Size


Casting weight range


Wall thickness

1.5-2mm Min depends on structure

Casting process type

Ceramic shell lost wax casting


CNC machining, CNC lathe in house


Raw casting material according to VDG P690. Can achieve tighter tolerance by CNC machining.

NDT service

Dye inspection, X ray inspection, ultrasonic inspection etc

Surface finish

Pickled,passivated, zinc plating, black phosphating ,vibration polishing, electro polishing, satin polishing, hand polishing

Investment Casting Process Flow:
1. Mold making. A wax mould is made according to the CAD system.
2. Wax Model-making. Molten wax is poured into the mould and formed a model that exactly same shape as the cast part.
3. Wax assembly. The wax patterns are connected to the runner system by hot knife according to certain rules. When this finish, a pattern tree is ready.
4. Slurry. The wax pattern tree is dipped into a slurry of silica, then into a sand-like stucco, or dry crystalline silica of a controlled grain size. The slurry and grit combination is called ceramic shell mould material, although it is not literally made of ceramic. This shell is allowed to dry, and the process is repeated until at least a half-inch coating covers the entire piece. The bigger the piece, the thicker the shell needs to be.
5. Burnout. The ceramic shell-coated piece is placed cup-down in an autoclave, who hardens the silica coatings into a shell, and the wax melts and runs out. This process makes hollow in the shell where formerly occupied by the wax.
6. Pouring. The shell is preheated in the clave to harden the patches and remove all traces of moisture, then placed cup-upwards onto a sand bed. Metal is melted in a furnace, then poured carefully into the shell. The shell has to be hot because otherwise the temperature difference would shatter it. The filled shells are then allowed to cool.
7. Release. The shell is hammered or sand-blasted away, releasing the rough casting. The gates, which are also created in metal, are cut off.
8. Machining and finishing. The casting is shot blasted and then machined to required tolerance if necessary. Further finish like plating or polishing can also be operated according to customer needs.


Winnington supplies parts for a multitude of industries such as: Petro Chemical, Valves and Pumps, Marine, Medical,Transportation, Food Machinery, and other Machinery.

Winnington Casting is Ready to Assist You With …
Lost wax investment castings from 10g to 80kg in weight.
Cast engineering materials including low and high steels, stainless steels, tool steels, nickel based alloys.
Lost wax tooling design and manufacturing, from simple single cavity to multi-cavity and semi or fully automated tools.
Full CNC machining services.
All NDT testing capabilities.
Full metals testing capabilities including chemical analysis, mechanical testing, metallography,and corrosion testing.
Full range of heat treatment processing including annealing, solution annealing, normalizing, quench and temper hardening, nitriding, vacuum processing, and age hardening.
Consultation services to assist with metallurgical issues.
Full range of surface treatments available including passivation, plating, painting, and polishing.
In-house surface preparations include shot blast, sand blast, and glass beading.

Product Tags:

investment casting wax


precision investment casting

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