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Resin Sand Casting

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Resin Sand Casting

Jun 23, 2022

What Is Resin Sand Casting?

Resin Sand Casting process is a kind of floor molding process using resin sand as the molding material. Resin sand is a mixture of quartz sand and resin. After mixing and burning, the resin sand becomes very hard and solid, so it is called a hard mold.

Since the resin sand mold is very hard and solid with smooth surfaces, resin sand casting offers more accurate dimensions, better surface smoothness, and fewer sand residuals or casting defects on the surface and inside.

Pouring Metal Liquid

Pouring Metal Liquid To Cavity

Resin Sand Casting Capabilities

Materials Grey Iron, Ductile Iron, Steel
Casting Weight 10 – 2,000 kg
Flask Size Up to 4200 × 4200 × 2000 mm
Suitable Parts Large / Complex Castings
Production Volume Small to Medium Batch
Machining & Inspection CNC Machining Available | Chemical / Metallographic / Mechanical

When Should You Choose Resin Sand Casting?

Requirement Suitability (Resin Sand Casting)
Large casting size Highly Suitable
Complex geometry Highly Suitable
Heavy castings Highly Suitable
Small batch Highly Suitable
Large production volume Depends on tooling/process

What Metal We Cast

Grey Iron: HT150, HT200, HT250; EN-GJL-100 to 300; GG15 to GG30

Ductile Iron: GGG40 to GGG80; EN-GJS-400 to 800; QT400 to QT800

Grey Iron Sand Castings

How We Inspect The Castings

Equipped with ARL360 Spectrometer and metallurgical microscopes, we offer:

  • Spectrographic quantitative analysis
  • Metallographic analysis
  • Brinell & Rockwell hardness inspection
  • Mechanical property analysis
Chemical Composition Test

Steps For Sand Casting Process

1) Making Pattern: Made of wood or aluminum. Aluminum is ideal for thousands of parts requiring tight tolerances.

2) Molding Process: Sand is mixed, shot into sand boxes, and packed solid by workers.

3) Self-Hardening: The sand mold is coated with alcohol-based coatings and burned to become a hard mold.

4) Melting and Pouring: Medium frequency electrical furnaces melt scrap irons for the process.

5) Cleaning & Finishing: Shot blasting removes sand/oxides, gating systems are cut, and parting lines ground before machining.

The Facilities Of Resin Sand Casting

We use professional equipment to produce high-quality, large-volume grey iron and ductile iron castings.

Pattern Workshop

Pattern Workshop

Patterns

Patterns

Molding Machine

Molding Machine

Shot Blasting

Shot Blasting

Custom Resin Sand Casting Parts

Custom Blade

Custom Blade

Ductile Iron Casting

Ductile Iron Casting

Custom Bearing

Custom Bearing

Custom Pulley

Custom Pulley

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