Leesh’s Sand Casting Expertise
Sand casting is a core service at Leesh, where we bring together innovation and experience. We provide steel sand casting and iron sand casting, serving a wide range of industries.
Resin Sand Casting
Resin sand casting is one of our premier methods. The resin – bound sand creates molds with high precision. This is ideal for steel and iron components that demand intricate designs. The process ensures dimensional accuracy, making it suitable for parts where tight tolerances are crucial.
Green Sand Casting
Green sand casting at Leesh is a cost – effective option. The moist sand mixture, rich in clay, provides good mold strength. It’s perfect for large – scale production of both steel and iron castings. The green sand’s collapsibility allows for easy removal of the casting after solidification.
Precoated Sand Casting
Our precoated sand casting method delivers a superior surface finish. The pre – coated sand grains minimize surface defects in steel and iron castings. This makes it an excellent choice for products where appearance and quality are top priorities. Whether you need steel or iron sand casting, Leesh has the right method for your requirements.

| 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 |

