Wuxi Hongguang Precision Casting Factory is one of the largest
manufacturers and suppliers of customized stainless steel pump
body/water pump impeller precision castings in China. Please rest
assured to buy or custom the quality stainless steel pump body
castings,water pump impeller castings from our factory.
Model NO.: Pump Casting
Casting Method: Thermal Gravity Casting
Application: Oil and Gas
Material: Steel，Stainless Steel
Surface Roughness: Ra3.2
Certification: ISO 9001
Specification: Class 150lb~2500lb, Size 1/2"~56"
Type: Chemical Hardening Sand
Sand Core Type: Resin Sand Core
Machining: CNC Machining
Surface Treatment: Sand Blast
Inspection: International Inspection Report of Each Process
Transport Package: Standard Export Packing
Customized Stainless Steel Pump Body / Water Pump Impeller Precision Castings
Hongguang Precision adopts advanced casting process to reduce shrinkage cavity, shrinkage porosity, voids, sand inclusion, slag blowhole, gas hole, off-dimension and other defects, and is specialized in production of various types of water pump case, pump body castings, water pump cover castings, centrifugal pump case, impeller castings, machinery castings, marine parts and hardware fittings etc.
The casting process of stainless steel impeller is as follows
1. Moulding: The wax mould (molten mould material cast in “pattern die” and cooled) of the same shape with castings but slightly larger size (in consideration of metal and mould shrinkage) is made;
2. Crusting: The wax mould is covered with fireproof coating, spread with sand and hardened to form a fireproof thin shell;
3. Demoulding: The wax mould with fireproof thin shell is put into 90℃±5℃ hot water; 10-20 minutes later, wax will be melted and float up to the water surface; then, the thin shell can be taken out, cleaned, and air-dried for hours;
4. Roasting: The shell is roasted for two hours under 800-900℃±30℃;
5. Casting: This process is operated under 600-800℃.
Finally, the fireproof shell should be shaken off, and any casting head should be cleaned and removed after the casting is cooled down.
How to work with us? Send Inquiry to us and tell us what you need. Provide us your drawings or photos of your workpiece. Our Engineers will confirm the details of drawing with you. We make the mold and produce a sample. Sample will be sent to you for your confirmation. Improve the sample as your proposal. Start batch production.
Sincerely hope that we can assist your business.Welcome to contact us! Wuxi Hongguang Precision Casting Factory Contact：Yanyan Zhang Tel：+86-510-85595173 Fax: +86-510-85591829 Mobile: +86-13186696559 E-mail: Website: