Leesh Holdings offers professional sand casting services for motor shell casting using premium grey iron casting. Our motor shell castings are designed for electric motors, gearboxes, pump housings, and industrial machinery enclosures that demand strength, vibration dampening, and thermal conductivity.
Key Specifications – Motor Shell Casting
| Casting Process | Green sand casting / resin sand casting |
| Material | Grey iron (GG20, GG25, HT200, HT250) |
| Weight Range | 5 kg – 500 kg per piece |
| Max Dimension | 1,200 mm × 800 mm |
| Surface Finish | Shot blasting, painting, powder coating |
| Applications | Motor shells, electric motor housings, pump casings |
| Tolerance | CT9 – CT11 (ISO 8062) |
Our sand casting services for motor shell casting ensure dimensional accuracy and consistent metallurgy across every batch. As a trusted grey iron casting foundry, we support OEM and ODM orders with quick tooling turnaround and competitive pricing on both low-volume prototypes and high-volume production runs.
- ✅ Expert grey iron casting for motor shell applications
- ✅ In-house pattern making and CNC machining post-casting
- ✅ Strict quality control – chemical analysis, hardness test, pressure test
- ✅ Short lead times – sample delivery in 20–25 working days
- ✅ Global shipping – FOB Dalian,China / CIF worldwide
Sand Casting Services – Stainless Steel Volute Case
Leesh Holdings offers advanced sand casting services for stainless steel volute case manufacturing. Our steel casting foundry produces volute casings, pump bowls, turbine housings, and spiral casings in a range of stainless steel and alloy steel grades for water treatment, petrochemical, marine, and power generation industries.
Stainless Steel Volute Case Specifications
| Material Grades | CF8 (304), CF8M (316), CF3 (304L), CF3M (316L), 1.4408, 1.4308 |
| Casting Method | Resin sand casting / investment casting hybrid |
| Weight Range | 10 kg – 3,000 kg per casting |
| Max Dia. | Up to 1,500 mm volute diameter |
| Surface Treatment | Glass bead blasting, passivation, electropolishing |
| Pressure Test | Hydrostatic test up to 6.0 MPa as per API / EN 12266 |
| Standards | ASTM A351, A743, EN 10283, ISO 4991 |
Our steel casting expertise ensures each stainless steel volute case meets strict hydraulic profile requirements and pressure containment standards. The sand casting services we provide for stainless steel volute cases include simulation-assisted gating design to minimize porosity and ensure sound internal structure. Each volute casting undergoes full NDT inspection including X-ray, dye penetrant, and ultrasonic testing when required.
- ⚙️ Corrosion-resistant steel casting for harsh environments
- ⚙️ Hydraulic performance validated via CFD simulation
- ⚙️ Complete traceability – material certs, heat treatment logs, NDT reports
- ⚙️ Machined and balanced volute cases ready for pump assembly
- ⚙️ Export packing for sea/air freight to global destinations
Partner with Leesh Holdings for trusted sand casting services – expert steel casting of stainless steel volute case products to your exact specifications.
Why Choose Leesh Holdings for Sand Casting Services?
Leesh Holdings is a professional sand casting services provider specializing in grey iron casting, iron casting, and steel casting. With decades of experience and a modern foundry facility, we deliver precision castings including motor shell casting and stainless steel volute case products for clients worldwide. Whether you need iron casting for industrial machinery or steel casting for corrosion-resistant fluid handling, our sand casting services provide cost-effective, high-quality solutions from prototype to mass production.
Sand Casting Services
Professional Casting Component Supplier
Sand Casting Services is a core manufacturing foundry of Leesh facilities.
We deliver high-quality sand casting solutions for industrial applications. With advanced molding lines, automated pouring systems, and comprehensive quality control equipment to ensure every casting meets the highest standards. From small prototypes to large-scale production runs, we provide end-to-end casting solutions tailored to your specific requirements.
For more details, please visit Sand Casting Services introduction.
Core Capabilities
Advanced Molding Technology
Using state-of-the-art processing technology and gating system design to prepare the first step for subsequent pouring and perfect castings.
Stringent Quality Assurance
Comprehensive testing including RT, UT, MT, PT inspections, CMM measurement, and material analysis for consistent quality.
In-House Heat Treatment
Complete heat treatment services including normalization, quenching, tempering, nitriding, and case hardening.
Technical Specifications
Frequently Asked Questions
Sand Casting Services – FAQ
1. What casting processes does Leesh offer?
We provide a full range of sand casting solutions including Green Sand Casting (also known as Wet Sand or Clay Sand Casting), Resin Sand Casting, Shell Molding Casting, and Lost Foam Casting. Our flexible manufacturing capabilities allow us to select the optimal process based on your part’s complexity, volume, and performance requirements.
2. What materials can you cast?
We specialize in high-quality cast iron and cast steel components, with extensive experience working with materials that meet all major international standards (Chinese, American, European, Japanese, and Australian). Our material portfolio includes carbon steels, alloy steels, stainless steels, ductile irons, and grey irons.
We also welcome custom material formulations. Our experienced engineering team will work closely with you to develop and validate material properties that precisely match your application needs.
3. What payment terms do you accept?
We operate on a advance payment + balance before shipment model. This structure supports our low-cost, high-quality business strategy, allowing us to pass maximum value to our global customers rather than pursuing excessive profit margins. For customized payment arrangements or large-volume orders, please contact our sales team to discuss flexible options.
4. What is the general lead time for regular parts?
Our standard production timelines are:
- Mold manufacturing: 2-3 weeks
- Sample production: 2 weeks
- Mass production: 3-4 weeks (varies based on part complexity)
Lead times may be adjusted for highly complex components or those requiring extensive post-casting processing. For accurate, project-specific lead times, please submit your drawings to our sales team for a detailed quotation.
5. What trade terms do you use?
We accommodate all Incoterms® 2020 terms, from EXW (Ex Works) to DDP (Delivered Duty Paid). Our dedicated in-house logistics team manages end-to-end shipping coordination, ensuring your parts arrive safely, on time, and with minimal hassle regardless of your location.
6. Is there any minimum order quantity (MOQ)?
- Standard casting materials: No MOQ requirement – we accept orders for single prototypes up to large-scale production runs
- Special/custom materials: We recommend initial testing with our standard materials to verify dimensions and assembly fit. If material property testing is required, the MOQ is 80% of our smallest melting furnace capacity to ensure proper metallurgical consistency.
7. How do you guarantee your quality?
We maintain strict adherence to ISO 9001 quality management standards throughout our entire production process. Our comprehensive quality control system includes:
- Raw material certificate verification and incoming inspection
- Real-time in-furnace chemical analysis during melting
- Post-casting material spectrum analysis
- Full mechanical property testing (tensile, hardness, impact)
- Dimensional inspection using CMM and 3D scanning
- Non-destructive testing (RT, UT, MT, PT) as required
For every project, our QA team develops a customized inspection SOP tailored to your part’s specific critical dimensions and performance requirements, ensuring consistent quality from the first sample to the final shipment.
