Green Sand Molding: Efficient and Economic Casting Method

Green Sand Molding: A Sustainable Casting Solution

Green Sand Molding, also call Green Sand Moulding, or wet sand molding, the word ” green” not refer to the color, it more mean the moisture like the green wood.

The Green Sand Molding casting method exsiting for centuries due to its simplicity, cost – effectiveness, and environmental benefits.

Advantages of  Leesh Green Sand Molding
One of the key advantages of green sand moulding is its cost – efficiency. The raw materials, sand and clay, are abundant and relatively inexpensive. Additionally, the process allows for quick production cycles, enabling high – volume output. Green sand is also reusable, which reduces waste and makes the process more environmentally friendly compared to some other casting methods. Another benefit is its versatility. Green sand moulding can be used to produce a wide variety of castings, from small, intricate parts to large, more straightforward components.

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.

Industrial Pump Valve Body pump cover-1 Green Sand Molding


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

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