Sand Casting Supplier | Steel & Iron China-Based Castings

Sand Casting Supplier – Leesh Holdings is a professional provider of high-quality sand casting solutions for global industrial clients. With years of experience in the casting industry, we specialize in delivering custom castings that meet the most demanding specifications and performance requirements.

Sand Casting Supplier: Custom & Green Casting Services

As a leading Sand Casting Supplier, Leesh Holdings offer comprehensive custom sand casting services tailored to your unique needs. Our green sand casting supplier capabilities provide cost-effective solutions for high-volume production runs, while our advanced resin sand casting processes deliver superior surface finish and dimensional accuracy for more complex components. We work closely with clients from design to delivery to ensure every casting meets your exact requirements.

Sand Casting Supplier in China: Material Expertise

Our Sand Casting Supplier in China facility specializes in a wide range of materials to suit diverse applications. As a trusted ductile iron sand casting supplier, we produce high-strength, durable components ideal for automotive and machinery industries. We also operate as a reliable steel sand casting supplier, offering carbon steel, alloy steel, and stainless steel castings for heavy-duty applications.

Quality Assurance & Global Delivery

We implement strict quality control measures throughout the production process, from raw material inspection to final testing. Our facility ensures consistent quality and on-time delivery to clients worldwide. Whether you need small-batch prototypes or large-scale production, we are your trusted partner for all sand casting needs.
Steel Sand Casting Sand Casting Supplier Resin Coated Sand Casting-1

Manufacturing Method Sand Casting(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.

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