Sand Casting Services are Leesh core offering, designed to meet the diverse needs of industrial clients worldwide. With decades of expertise in metal casting, we provide end-to-end solutions from prototype development to full-scale production, ensuring every project meets the highest quality standards.
Sand Casting Services: Custom & OEM Capabilities
As a leading provider of Sand Casting Services, we specialize in custom sand casting services tailored to your exact specifications. Our OEM sand casting services support global manufacturers with consistent, high-volume production that integrates seamlessly with your supply chain. We work closely with engineering teams to optimize designs for castability, reducing costs and improving performance without compromising quality.
Sand Casting Services Foundry: Process Expertise
Our sand casting services foundry offers a full range of casting processes to suit every application. We provide premium green sand casting services for cost-effective high-volume production, and advanced resin sand casting services for complex components requiring superior dimensional accuracy and surface finish. As an experienced cast steel sand casting services provider, we also produce carbon steel, alloy steel and stainless steel castings for heavy-duty industrial use.
Quality Commitment & Global Delivery
We implement rigorous quality control measures at every stage of production, from raw material inspection to final testing. Our ISO-certified facility ensures consistent quality and on-time delivery to clients across North America, Europe and Asia. Whether you need small-batch prototypes or large-scale production runs, we are your reliable partner for all sand casting needs.

| Manufacturing Method | Sand Casting Services(Resin Sand, Procated Sand Stack Castings, Clay Sand, Water glass sand, Green Sand,lost foam ) |
| Material Standard | GB, ANSI, BS, DIN, JIS, ASTM, ASME, AISI, etc carbon steel, low carbon steel, middle carbon steel, G35, G45, WCB, WCA, WCC, ISO 340-550, etc. Alloy Carbon steel: G25CrMo4, Heat Resistant Steel, etc. Stainless Steel: SUS 304, 304L, 316, 316L, CF8, CF8M, G-X7CrNiNb1189, etc. AS2074 or according to customer specific requirement. Ductile Iron:A536-Gr.60-40-18,GGG40,GGG50,FCD40,FCD50,Gr370-17,Gr420-12,etc Grey Iron:EN-GJL-250 Casting,A48-No.20,25,30,GG10,GG15,GG20,FC10,FC15,FC20,Grade 150,180,220,FGL150,FGL200,FGL250,etc |
| Weight Range | 1 kg to 100 Tons |
| General Casting Tolerance | CT8-CT12 |
| Design Software | UG, Pro-E, Inventor |
| Dwg Format | STP, STEP, IGS,STP,X_T ,DXF,DWG , Pro/E, PDF, SLDPRT |
| Mould Manufacturing | Yes |
| Casting Stimulation | Yes |
| Ultimate machining tolerance | 0.005mm |
| Quality Control | RT,UT,MT,PT,CMM,SCAN,Chemical and Mechanical Property Testing,Spectrometer,etc |
| Finish Roughness | Ra12.5-Ra25 according to customer requirement |
| Logo/ID | Silk-screening, Laser Marking, Engrave,Painting |
| Heat Treatment | Normalization, Annealing, Quenching and Tempering, Case Hardening, Nitriding, Carbon Nitriding, Induction Quenching,etc |
| Surface Treatment | Shot/sand blast, Polishing, Surface Passivation, Painting , Anodizing,Powder coating, ED- Coating, Chrome Plating, zinc-plate, Dacromat coating, Finish Painting,hot-dip galvanizing, etc |

Common FAQs About Leesh Sand Casting
1. What is sand casting?
Sand casting is a casting method that uses sand as the molding material to produce castings. It is widely used due to its advantages such as readily available and low-cost materials, simple equipment, easy operation, and no restrictions on casting alloy types, shapes, sizes, or production scales.
2. What materials can Leesh supply for sand casting?
Leesh provides various materials including Carbon Steel, Alloy Steel, Stainless Steel, Grey Iron, and Ductile Iron. These materials comply with international and national standards such as ASTM, SAE, AISI, ACI, DIN, EN, ISO, and GB.
3. What is the weight range of castings Leesh can produce?
- Cast Steel: 50Kg – 25,000Kg
- Cast Iron: 0.1Kg – 3,000Kg
4. What sand casting processes does Leesh adopt?
- For Cast Steel: Water glass sand, resin sand, coated resin sand (Hot-Box & Shell Molding)
- For Cast Iron: Resin sand, green sand, coated resin sand (Hot-Box & Shell Molding)
5. What are the key technical specifications of Leesh’s Green sand casting?
- Dimensional tolerance: CT8–CT12 (per ISO 8062)
- Surface roughness: Ra 6.3–25 μm
- Max part weight: 0.1 kg – 25,000 kg
6. Which industries does Leesh’s sand casting serve?
Leesh’s sand casting solutions are suitable for diverse industries including construction, machinery, automotive, and energy.
