1. Product Parameters

• Materials: ADC12 & A380 aluminum alloys, Zamak/zinc alloy, stainless steel grades upon request

• Part Size & Weight: From 5 g up to 8 kg; dimensions up to 800 × 800 × 200 mm

• Process:

  • Investment (Lost-Wax) Casting: Silica-sol or water-glass slurry for intricate geometries

  • High-Pressure Die Casting: Cold-chamber machines (200 – 1 600 ton) for high-volume runs

• Tolerances: As tight as ± 0.02 mm (per CT4–CT7 standards)

• Surface Quality:

  • Roughness: Ra 1.6 – 6.3 µm (after shot- or sand-blasting)

  • Finishes: Powder coating, anodizing, electrophoretic painting, plating (Ni, Cu, Zn, Cr), polishing, silk-screen or laser marking

• Certifications: ISO 9001:2015, RoHS, CE; material test reports (MTR), First-Article Inspection (FAI) available

• Design Support: Free DFM analysis; accepts STEP, IGES, DWG, DXF files

• MOQ & Packaging: Prototype from 1 pc; bulk in foam-lined cartons or wooden crates

2. Key Selling Points

1. Dual-Process Expertise
   Combines the fine detail of investment casting with the speed and economy of high-pressure die casting.

2. Ultra-Tight Precision
   Maintains repeatable tolerances down to ± 0.02 mm, reducing or eliminating post-machining.

3. Versatile Alloy Options
   From lightweight aluminum to durable zinc and stainless steel, tailored to strength, weight and corrosion requirements.

4. One-Stop OEM/ODM Service
   End-to-end workflow: pattern & mold design, casting, CNC machining, heat treatment, surface finishing and assembly.

5. Robust Quality Assurance
   100 % inspection via CMM, X-ray/ultrasonic testing, spectrometer analysis and pressure/leak testing ensure compliance with global standards.

3. Future Trends

• Additive-Hybrid Tooling: SLA/DLP 3D-printed patterns for faster prototype iteration and complex core geometry.

• Sustainable Casting: Increased use of recycled alloys and eco-friendly binders to meet circular-economy goals.

• Smart Factory Integration: IIoT sensors on die-casting machines for real-time monitoring, predictive maintenance and digital twins.

4. Application Scenarios

5. Frequently Asked Questions

Q1: Can I order a single prototype piece?
A: Yes—MOQ is 1 pc. Rapid prototypes available in 7–10 days.

Q2: What are your standard lead times?
A: Prototypes in 7–10 days; mass production in 15–30 days after sample approval (depending on volume & complexity).

Q3: Which CAD formats do you support?
A: STEP, IGES, DWG, DXF—3D models preferred for fastest tooling development.

Q4: How do you control porosity and surface integrity?
A: Investment casting uses controlled slurry and sintering; die casting employs vacuum-assist and optimized gating to minimize gas entrapment.

Q5: What surface treatments can you apply?
A: Powder coating, anodizing, electrophoretic paint, plating, polishing, blasting, silk-screen and laser marking.

Q6: How are parts packed and shipped?
A: Packed in foam-lined cartons or on wooden pallets; FOB, CIF or DDP shipping terms available to suit your logistics needs.

Shenzhen Huarongda Technology Co., Ltd. is a professional manufacturer specializing in aluminum die casting, CNC machining, aluminum extrusion, and sheet metal fabrication. Located in Shenzhen, China, with our manufacturing facility in Dongguan covering 5,000 square meters, we provide one-stop solutions from product design to finished goods. With advanced production lines, experienced engineers, and a strong network of qualified suppliers, we ensure high precision, reliability, and efficiency for every project.