Green Sand Foundry
Is one of the key asset of Leesh , more than 1000 Tons/Month turn over.All years carbon steel , wear resistance steel, superalloy casting, heat resistance material casting, heat resistance alloy casting pouring, to supply high quality Green Sand Casting to global customers.
Green sand casting is a fundamental process in the metal casting industry, valued for its affordability, efficiency in production, and environmental benefits. More information about green sand casting is available from China Foundry Group.

| Manufacturing Method | Sand Casting(Resin Sand, Pre-Coated Sand, 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: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
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.
7. Why choose Leesh’s sand casting services?
- Cost-effective for both small and large production runs
- Compatible with a wide range of metals and alloys
- Flexible in design and size customization
- Shorter lead times for prototype development and bulk production
