Shandong Derick - ISO 9001/ASTM A27 Certified Heavy/Large Sand Casting Manufacturer in China

Cost-Effective Green/Coated/Resin Sand Castings (1kg-10000kg) for Global Industrial Buyers

OEM sand mold casting - CT10-12 (ISO 8062) precision, Ra 12.5micron finish, 3-5 weeks fast delivery to worldwide markets.

Heavy/Large Sand Casting (Green Sand/Coated Sand/Resin Sand) - Carbon Steel/Stainless Steel/Aluminum/Bronze for Marine/Pump/Valve/Industrial Machinery | 1kg-10000kg

Shandong Derick is a professional sand casting (sand mold casting) manufacturer with over 15 years of experience serving global industrial buyers across North America, Europe, Middle East and Asia. We specialize in green sand (low cost), coated sand (high precision) and resin sand (large parts) casting processes, producing heavy/large components from carbon steel (WCB/1045/ASTM A27), stainless steel (304/316L), aluminum (A356/A380) and bronze (C90300/C95400) alloys. Our sand castings meet ASTM A27, DIN EN 12890 and GB standards, with 1kg-10000kg weight capacity and Ra 12.5micron surface finish → ideal for heavy machinery, marine, pump/valve and industrial equipment applications with 3-5 weeks fast delivery worldwide and no MOQ for small/batch orders.

Sand Casting Process & Capabilities (ISO 9001 Certified)

Sand Casting Process Flow (Global Standard)

Our sand casting process follows strict international standards (ISO 9001/ASTM A27) to ensure consistent quality for global clients:

  1. Pattern Making (Wood/metal/plastic patterns for sand mold forming - CNC machined for precision)
  2. Sand Molding (Green sand/coated sand/resin sand mold preparation with automated mixing)
  3. Core Making (High-strength sand cores for complex internal cavities of castings)
  4. Mold Assembly (Precision combine mold and cores for accurate pouring alignment)
  5. Melting & Pouring (Molten metal pouring into sand molds - temperature controlled)
  6. Shakeout & Cleaning (Automated sand removal & CNC cutting of casting gates)
  7. Heat Treatment (Annealing, normalizing, quenching per material strength requirements)
  8. Inspection & Machining (CMM dimensional inspection + precision CNC machining as required)

Sand Casting Capabilities (Global Buyer Requirements)

We offer comprehensive sand casting capabilities to meet global customer requirements (OEM/ODM):

  • Process Types: Green Sand Casting (low cost for mass production), Coated Sand Casting (high precision), Resin Sand Casting (large/heavy parts up to 10000kg)
  • Material Range: Carbon steel (WCB/1045/ASTM A27), Stainless steel (304/316L), Aluminum (A356/A380), Bronze (C90300/C95400)
  • Dimensional Accuracy: CT10-12 (ISO 8062) - ± 0.5mm for critical dimensions (CMM verified)
  • Surface Finish: Ra 12.5-25micron (Ra 6.3micron with sandblasting/polishing option)
  • Casting Weight: 1kg - 10000kg (custom for extra-large components up to 15000kg)
  • Min Wall Thickness: 2mm (coated sand) / 4mm (green sand) (uniform thickness control)
  • Lead Time: 3-5 weeks for mass production, 1-2 weeks for prototypes (express option available)

Advantages of Sand Casting

Sand casting offers unique cost-effective benefits for global industrial applications vs other casting methods:

  • Cost-Effective: Low tooling cost → ideal for small/batch/large volume production (20-30% cheaper than die casting)
  • Heavy/Large Size: Produce extra-large/heavy components (up to 10000kg) - no size limitations
  • Material Versatility: Cast almost all ferrous/non-ferrous metals and alloys (ASTM A27 certified)
  • Fast Production: Short mold making cycle (1-2 weeks for simple patterns - faster than investment casting)
  • Design Flexibility: Adapt to complex shapes with internal cavities (via high-strength sand cores)
  • MOQ Friendly: No minimum order quantity (suitable for prototype/small batch orders - cost-saving)

Applications of Sand Castings

Our sand castings are widely used in global high-demand industries (ISO 9001/ASTM A27 certified):

  • Heavy Machinery: Machine bases, frames, gears, housings (carbon steel ASTM A27 for strength)
  • Marine Industry: Ship hull parts, propeller hubs, marine pump casings (bronze/C95400 corrosion resistant)
  • Pump & Valve Industry: Large valve bodies, pump casings, impellers (WCB/316L for pressure applications)
  • Oil & Gas Industry: Wellhead equipment, pipeline fittings, storage tanks (carbon steel WCB for durability)
  • Agricultural Equipment: Tractor parts, harvester components (aluminum/carbon steel cost-effective)
  • General Industry: Engine blocks, hydraulic components, structural parts (custom sand casting solutions)

Get Your Custom Sand Casting Quote in 24 Hours

Send us your 2D (DWG/DXF) or 3D (STEP/IGES) drawings → Free technical analysis & quotation within 24 hours (OEM/ODM supported, no MOQ)

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