Custom Casting Parts
Custom Casting Parts & Precision OEM Components
Engineering-driven custom metal casting solutions. We transform customer CAD models and technical drawings into precision-machined, quality-inspected cast components tailored to your mechanical requirements, tolerances, and operating environments.
Custom Casting Capabilities
|
Parameter |
Capability / Limit |
|
Weight Range |
0.05 kg - 150 kg (0.1 lbs - 330 lbs) per casting |
|
Wall Thickness |
Min. 2.0 mm (Investment Casting); Min. 4.0 mm (Sand Casting) |
|
Dimensional Tolerances |
ISO 8062-3 DCTG 4 to DCTG 6 (As-cast); ISO 2768-m/f (CNC Machined) |
|
Surface Roughness |
Ra 1.6 um - Ra 3.2 um (Investment); Ra 6.3 um - Ra 12.5 um (Sand) |
|
Annual Capacity |
8,000 Metric Tons across primary facilities |
Casting Processes Available
Investment Casting (Lost Wax Casting)
• Best for: Complex geometry, thin walls, tight as-cast tolerances, and smooth surface finishes.
• Tooling Cost: Moderate.
• Unit Cost: Higher per pound; offsets downstream secondary machining costs.
Precision Sand Casting (Resin & Green Sand)
• Best for: Medium-to-large structural components, heavier wall sections, and moderate production volumes.
• Tooling Cost: Low to moderate.
Unit Cost: Economical for medium to large parts.
Shell Mold Casting
• Best for: Mid-volume runs requiring better surface finish and tighter dimensional accuracy than standard sand casting.
• Tooling Cost: Moderate.
• Unit Cost: Balanced balance between investment and traditional sand processes.
Stainless Steel
• Austenitic (304, 304L, 316, 316L): Superior corrosion resistance, chemical compatibility, and food-grade compliance.
• Duplex & Super Duplex (2205, 2507): High mechanical strength combined with resistance to pitting and crevice corrosion in marine and chloride environments.
• Martensitic & Precipitation Hardening (17-4PH, 410): High yield strength and hardness following thermal treatment.
Carbon & Low-Alloy Steel
• Carbon Steels (WCB, WCC, LCB, 1020, 1045): Standard structural integrity for pressure-containing parts and general industrial machinery.
• Alloy Steels (4140, 4340, 8620): High fatigue resistance, toughness, and wear properties after heat treatment.
Ductile & Gray Iron
• Ductile Iron (QT450-10, QT500-7, 65-45-12, 80-55-06): High tensile strength, impact resistance, and sound damping.
• Gray Iron (HT200, HT250, Class 30, Class 35): Excellent wear resistance, machinability, and thermal conductivity.
From Customer Drawing to Finished Part
[ Step 1: DFM Review ] -> [ Step 2: Tooling & Pattern Design ] -> [ Step 3: First Article Sample ]->[ Step 4: Production Casting ]->[ Step 5: CNC Machining ] ->[ Step 6: Final Inspection & CMM ]
DFM & Technical Review: Cross-functional evaluation of wall thickness variations, draft angles, shrinkage allowances, and machining margins.
Tooling Construction: Aluminum/steel die manufacture and pattern setup.
First Article Inspection (FAI): Initial sample batch produced with full dimensional layout, material test reports (MTR), and NDT clearance.
Batch Pouring & Heat Treatment: Controlled melting, spectrographic chemistry confirmation, and process-specific thermal processing.
Precision Machining: Secondary operations to hit print specs on critical fitments.
Quality Verification & Dispatch: Lot-traceable CMM inspection, surface checking, and export protective packaging.
Tooling and Prototype Development
Rapid Prototyping:
Direct 3D sand printing or wax pattern printing for functional testing prior to hard tooling investments (Lead time: 10-15 days).
Tooling Materials:
CNC-machined 6061 Aluminum or P20/H13 Steel dies depending on target lifecycle requirements (Tooling lifespan: 50,000 to 300,000 shots).
Ownership & Maintenance:
Customers retain full intellectual property and tooling ownership. Tooling maintenance, minor repairs, and controlled storage are managed on-site without ongoing fees during active production runs.
CNC Machining and Secondary Operations
Machining Fleet: 3-axis, 4-axis, and 5-axis vertical/horizontal machining centers (VMCs/HMCs), CNC lathes, and boring mills.
Secondary Processing: Threading, reaming, broaching, keyway cutting, precision grinding, and pressure testing.
Surface Finishing Options:
• Shot blasting (S230/S330 steel grit)
• Electropolishing and passivating
• Zinc plating, powder coating, and liquid paint systems
• Phosphate and black oxide coatings
Quality Control for Custom Castings
|
Testing Category |
Equipment / Method |
Standards Compliance |
|
Chemical Analysis |
Optical Emission Spectrometer (OES) |
ASTM E415 / ASTM E1086 |
|
Mechanical Testing |
Universal Tensile Machine, Charpy V-Notch Impact, Brinell/Rockwell Hardness |
ASTM A370 / ISO 6892 |
|
Dimensional Inspection |
Coordinate Measuring Machine (CMM), Optical Profilometer, Thread Gauges |
ISO 10360 |
|
Non-Destructive Testing (NDT) |
Radiographic Testing (RT), Magnetic Particle (MT), Liquid Penetrant (PT), Ultrasonic (UT) |
ASTM E192 / ASTM E1417 / ASTM E1444 |
Every shipment includes an EN 10204 3.1 Material Test Report covering chemical composition, mechanical test values, heat treatment charts, and dimensional checks.
Industries and Applications
Fluid Handling & Valves:
Valve bodies, pump casings, impellers, flanges, and pipe fittings.
01
Heavy Machinery & Construction:
Bucket teeth, wear plates, brackets, hinges, and structural pivot pins.
02
Agricultural Equipment:
Gearboxes, knuckles, chain sprockets, and tiller components.
03
Automotive & Transportation:
Axle housings, brake calipers, suspension arms, and engine brackets.
04
Energy & Power Generation:
Turbine housings, compressor manifolds, and burner nozzles.
05
Pump & Valve Bodies: Investment-cast stainless steel housings rated for pressure retention up to PN160 / Class 900.
Impellers & Expanders: Dynamic balanced cast impellers with internal passages finished to Ra 3.2 um.
Heavy-Duty Brackets & Mounts: Ductile iron and alloy steel structural castings designed for elevated mechanical fatigue resistance.
Gear Casing Housings: Machined sand-cast iron enclosures featuring bored bearing seats held within 0.012 mm tolerances.
To receive an itemized quotation within 24-48 hours, submit the following technical documentation:
2D Engineering Drawings:
PDF or DWG/DXF files showing key dimensions, tolerances, surface finishes, and datum references.
3D Models:
STEP, IGES, or X_T models for geometry parsing and casting volume calculations.
Material Designation:
Specific standard codes (e.g., ASTM A351 CF8M, DIN 1.4408, EN-GJS-450-10).
Estimated Annual Volume (EAV):
Target lot sizes and annual consumption projections.
Quality & Testing Requirements:
Necessary NDT levels, pressure test specifications, third-party inspection needs, or specific coating specs.
Production and Delivery Process
Quotation & DFM Analysis:
1-2 business days.
Tooling Fabrication & FAI Samples:
20-30 calendar days (including sample delivery).
Mass Production Run:
30-40 calendar days following FAI approval.
Shipping & Logistics:
EXW, FOB, CIF, or DDP terms available. Standard seaworthy plywood packaging with VCI rust-inhibitor bags.
FAQ
Request a Technical Quote
Send your engineering drawings and material specifications directly to our engineering team to evaluate your project requirements, verify DFM compliance, and receive a competitive quotation.
We're well-known as one of the leading custom casting parts manufacturers and suppliers in China. If you're going to wholesale high quality custom casting parts with competitive price, welcome to get more information from our factory.
