Shandong Derick - ISO 9001/ASTM A351 Certified Precision Investment Casting Manufacturer in China

Custom Lost Wax Castings (Silica Sol/Water Glass) for Global Industrial Buyers

OEM investment casting - CT6-8 (ISO 8062) precision, Ra 3.2micron finish, 4-6 weeks fast delivery to worldwide markets.

Precision Investment Casting (Lost Wax Casting) - Silica Sol/Water Glass Technology, CT6-8 (ISO 8062) Precision for Stainless Steel/Aluminum/Bronze | API 6D Certified

Shandong Derick is a professional investment casting (lost wax casting) manufacturer with over 15 years of experience serving global industrial buyers across North America, Europe, Middle East and Asia. We specialize in high-precision silica sol (Ra 3.2micron) and cost-effective water glass investment casting processes, producing complex, high-precision components from stainless steel (304/316L/2205 duplex), aluminum (A356/A380), bronze (C90300/C95400) and carbon steel (WCB/1045/ASTM A351) alloys. Our investment castings meet ASTM A351, DIN EN 1559-2, API 6D and ISO standards, with CT6-8 (ISO 8062) dimensional accuracy and Ra 3.2micron surface finish → ideal for pump/valve (API 6D certified), marine (corrosion resistant), automotive and industrial machinery applications with 4-6 weeks fast delivery worldwide and 30-50% reduced machining cost vs traditional methods.

Investment Casting Process & Capabilities (ISO 9001/ASTM A351 Certified)

Investment Casting Process Flow (Global Standard)

Our investment casting process follows strict international standards (ISO 9001/ASTM A351) to ensure consistent quality for global clients:

  1. Wax Pattern Injection (High-precision CNC wax injection molds for complex near-net-shape geometries)
  2. Wax Assembly (Group wax patterns for batch production to reduce unit cost)
  3. Shell Making (5-10 layers of silica sol/water glass coating - automated dipping process)
  4. Dewaxing (Controlled steam dewaxing at 160degrees Celsius to remove wax patterns without shell damage)
  5. Preheating & Pouring (Shell preheating to 1000degrees Celsius + temperature-controlled molten metal pouring)
  6. Shell Removal & Cleaning (Automated sandblasting, CNC cutting of casting gates and risers)
  7. Heat Treatment (Annealing, quenching, tempering per material strength/corrosion requirements)
  8. Inspection & Machining (CMM dimensional inspection + precision CNC machining as required)

Investment Casting Capabilities (Global Buyer Requirements)

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

  • Process Types: Silica Sol Investment Casting (high precision, Ra 3.2micron), Water Glass Investment Casting (cost-effective, Ra 6.3micron)
  • Material Range: Stainless steel (304/316L/2205 duplex), Aluminum (A356/A380/6061), Bronze (C90300/C90500/C95400), Carbon steel (WCB/1045/ASTM A351)
  • Dimensional Accuracy: CT6-8 (ISO 8062) - ± 0.1mm for critical dimensions (CMM verified)
  • Surface Finish: Ra 3.2-6.3micron (Ra 1.6micron with precision polishing/buffing)
  • Casting Weight: 0.1kg - 500kg (custom for larger components up to 800kg)
  • Min Wall Thickness: 2mm (silica sol process) / 3mm (water glass process) (uniform thickness control)
  • Lead Time: 4-6 weeks for mass production, 2-3 weeks for prototypes (express option available)

Advantages of Investment Casting (Lost Wax Casting)

Investment casting (lost wax casting) offers unique high-value benefits for global industrial applications:

  • Complex Shapes: Produce intricate geometries with internal cavities that cannot be made by other casting processes
  • Near-Net-Shape: Minimal machining required → reduces production cost by 30-50% vs traditional casting/machining
  • High Precision: Consistent CT6-8 (ISO 8062) dimensional accuracy for batch production (CMM verified)
  • Material Versatility: Cast almost all metals and alloys (ferrous/non-ferrous - ASTM A351 certified)
  • Smooth Surface: Ra 3.2micron finish without additional polishing (meets most industrial specifications)
  • Cost-Effective: Competitive pricing for small to large volume orders (MOQ 10pcs - custom for prototypes)

Applications of Investment Castings

Our precision investment castings are widely used in global high-demand industries (ISO 9001/ASTM A351/API 6D certified):

  • Pump & Valve Industry: Impellers, casings, valve bodies, flanges (API 6D certified for oil/gas applications)
  • Marine Industry: Deck fittings, propellers, pipe fittings (316L stainless steel corrosion resistant)
  • Automotive Industry: Engine components, turbochargers, suspension parts (high-strength aluminum alloys)
  • Oil & Gas Industry: Wellhead components, pipeline fittings (NACE MR0175 compliant for sour service)
  • Food & Medical: Hygienic valves, precision fittings (304 stainless steel - FDA compliant)
  • General Machinery: Gears, brackets, hydraulic components (near-net-shape reduces assembly cost)

Get Your Custom Investment 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, MOQ 10pcs)

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