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In the realm of precision metal component manufacturing, professional gravity casting services stand as a cornerstone technology for producing high-integrity aluminum parts. Our specialized foundry combines decades of metallurgical expertise with state-of-the-art production facilities to deliver custom aluminum components that meet the most demanding specifications across diverse industries.
Advanced Aluminum Material Technology
Our gravity casting services utilize premium aluminum-silicon alloys specifically engineered for permanent mold applications. The A356-T6 alloy, featuring controlled silicon content of 6.5-7.5%, develops exceptional mechanical properties through specialized heat treatment cycles, achieving tensile strength of 45,000 psi and yield strength of 35,000 psi with elongation of 10% . For applications requiring enhanced pressure tightness, we employ A360 alloy with its superior fluidity characteristics, maintaining minimum tensile strength of 46,000 psi in as-cast condition . Each alloy undergoes rigorous spectrographic analysis to ensure precise chemical composition control and consistent performance.
Precision Gravity Casting Manufacturing
Our permanent mold gravity casting process leverages advanced foundry technology to produce components with superior metallurgical properties:
Mold Engineering Excellence
H13 tool steel molds manufactured with CNC machining and EDM processes ensure dimensional accuracy and extended tool life
Conformal cooling channels provide precise thermal management during solidification, optimizing grain structure
Multi-component mold systems enable complex geometries with internal features and reduced drafting requirements
CAD-optimized gating and risering ensures proper feeding and minimizes shrinkage defects
Controlled Production Process
Automated pouring systems maintain consistent metal temperature between 680-720°C for optimal fluidity
Tilt-pour technology ensures laminar metal flow, reducing turbulence and oxide formation
Directional solidification control enhances mechanical properties by minimizing porosity
Real-time process monitoring tracks critical parameters including temperature, cycle time, and cooling rates
Enhanced Performance Characteristics
Aluminum components manufactured through our gravity casting process deliver:
Superior Mechanical Properties: Enhanced strength and ductility compared to sand casting due to rapid solidification in metal molds
Excellent Surface Finish: Achieving 125-250 microinch (3.2-6.3 μm) roughness, reducing secondary machining requirements
Outstanding Dimensional Accuracy: Maintaining tolerances of ±0.015 inches for the first inch and ±0.002 inches per additional inch
Improved Pressure Tightness: Ideal for hydraulic and pneumatic applications requiring leak-proof performance
Enhanced Thermal Management: Aluminum's natural conductivity (0.34-0.37 cal/cm²/cm/°C) provides efficient heat dissipation
Comprehensive Quality Assurance
Our manufacturing processes incorporate rigorous quality protocols:
First-Article Inspection: Comprehensive dimensional verification using coordinate measuring machines
X-ray Examination: Detecting internal defects and verifying wall thickness consistency
Liquid Penetrant Testing: Identifying surface discontinuities in critical application components
Mechanical Property Validation: Testing tensile strength, hardness, and elongation per ASTM specifications
Material Traceability: Maintaining complete documentation from raw material to finished component
Custom Foundry Application Solutions
Our gravity casting services support diverse industry requirements:
Automotive Components
Engine brackets and mounts requiring high strength-to-weight ratios and vibration resistance
Transmission housings demanding dimensional stability under thermal cycling
Suspension components needing durability and impact resistance
Industrial Equipment
Pump housings and impellers requiring pressure integrity and corrosion resistance
Valve bodies and manifolds needing complex internal passages and precise mounting surfaces
Hydraulic system components demanding reliability under high-pressure conditions
Aerospace and Defense
Structural brackets and supports requiring certified material properties and traceability
Electronic enclosures needing EMI shielding and environmental protection
Defense system components demanding durability in extreme operating conditions
Technical Partnership Advantages
Our professional foundry services provide comprehensive engineering support:
Design for Manufacturing Analysis: Optimizing component geometry for casting efficiency and performance
Rapid Prototype Development: Accelerating product validation through quick-turn pattern making
Production Scaling: Supporting requirements from prototype to high-volume manufacturing
Value Engineering: Identifying opportunities for cost reduction while maintaining performance standards


Material |
steel, stainless steel, aluminum,iron, carbon steel,copper, brass, alloy, etc. |
Thickness |
0.1mm to 12mm, as your request |
Sizes |
1) According to customers' drawings 2) According to customers' samples |
Surface treatment |
Anodizing, galvanized, zinc, nickle, chrome plating, powder coating, painting, etc. |
Drawing format |
DWG, DXF, STEP, STP, STL, AI,PDF, JPG, Draft. |
Packing |
Polybag+Carton box+Wooden case/Pallet, according to customer's request |
Shipment |
1) By courier, like DHL, TNT, Fedex, etc, usually 5-7 days to arrive |
2) By air to air port, usually, 3-4 days to arrive |
|
3) By Sea port, usually 15-30 days to arrive |
|
Delivery Time |
depend on the quantities, usually around 20 days. |
Payment Term |
T/T, Paypal, Trade Assurance |
Certification |
ISO |
Logo service |
provided |
Application |
widely used on construction, industry, automobile industry. |







