Professional Pump Housing Casting for Water & Industrial Pumps
As a specialized pump housing casting manufacturer in Ningbo, China, DingZhu produces custom pump bodies for centrifugal pumps, submersible pumps, slurry pumps, and industrial pumps. We understand that pump manufacturers and OEMs need reliable quality, flexible MOQ, and fast turnaround—that's exactly what we deliver.
Our pump housing castings serve water treatment, agriculture, mining, chemical processing, and HVAC industries. With 20+ years of foundry experience and ISO9001 certification, we provide cost-effective solutions without compromising quality. Minimum order quantity starts from just 10 pieces, perfect for prototypes or small production runs.
Technical Specifications
Materials Available
- Ductile Iron: QT400-15, QT450-10, QT500-7 (most common for pump housings)
- Grey Iron: GG20, GG25 (economical option)
- Carbon Steel: WCB (for high-pressure applications)
- Stainless Steel: CF8, CF8M (corrosion-resistant)
Casting Capabilities
- Weight Range: 1kg - 150kg
- Casting Process: Sand Casting, Shell Mold Casting
- Tolerance: CT9-CT12 (ISO 8062)
- Wall Thickness: 6mm - 50mm
Additional Services
Machining
CNC machining of mounting holes, flanges, and sealing surfaces
Pressure Testing
Hydrostatic testing up to 25 bar
Surface Treatment
Epoxy coating, powder coating, painting
Manufacturing Process
Pattern & Core Making
Create patterns and core boxes for pump housing cavities. We optimize core design to minimize defects.
Molding & Pouring
Resin-coated sand molding for better dimensional accuracy. Controlled pouring temperature ensures sound castings.
Heat Treatment
Annealing to achieve required mechanical properties and improve machinability of pump housings.
Machining & Testing
CNC machining of critical surfaces. Pressure testing and dimensional inspection before shipment.
Pricing & Order Information
Flexible MOQ
We accept orders starting from 10 pieces. Perfect for pump manufacturers who need prototypes, replacement parts, or small-batch production without huge inventory commitment.
Volume discounts: Pricing becomes more competitive at 50pcs, 100pcs, and 500pcs quantities.
Lead Time
- Quotation:24 hours
- Pattern making:10-12 days
- Sample casting:12-15 days
- Production (100pcs):30-35 days
What We Need for Quote
- Technical drawings with dimensions and tolerances
- Material specification (or operating conditions for our recommendation)
- Required quantity and delivery schedule
- Pressure rating and testing requirements
Common Applications
Centrifugal Pump Housings
Volute casings for water supply, irrigation, and HVAC systems. Single-stage and multi-stage configurations.
Typical materials: QT450-10, GG25
Submersible Pump Bodies
Deep well pump housings for agricultural and municipal water supply. Corrosion-resistant materials available.
Typical materials: QT500-7, CF8
Slurry Pump Housings
Heavy-duty pump bodies for mining and mineral processing. Wear-resistant materials for abrasive applications.
Typical materials: High-chrome iron, QT600-3
Ready to Get Started?
Send us your pump housing drawings today and receive a detailed quote within 24 hours.
Or call us directly: +86 574 1234 5678
Frequently Asked Questions
What is the best material for pump housings?
It depends on your application. For clean water: QT450-10 or GG25. For corrosive fluids: CF8 or CF8M stainless steel. For abrasive slurries: high-chrome iron or QT600-3. We can help you select the right material based on your operating conditions.
Can you cast pump housings with complex internal passages?
Yes. We use sand cores to create internal cavities and passages. Our engineers can review your design and suggest modifications if needed to ensure successful casting without defects.
Do you provide pressure testing for pump housings?
Yes. We conduct hydrostatic pressure testing up to 25 bar (or as specified). Test reports are provided with each shipment. Additional testing (air leak test, dye penetrant) available upon request.
Can you machine the pump housing after casting?
Yes. We offer complete machining services including flange facing, drilling and tapping of mounting holes, and machining of sealing surfaces. You receive ready-to-assemble pump housings.
What surface treatments are available for pump housings?
We offer epoxy coating (for corrosion protection), powder coating (various colors), and industrial painting. For marine or offshore applications, we can apply specialized coatings per your specification.