Custom Zinc Die Casting Services
Elevate your product performance with our professional custom zinc die casting services. As a leading manufacturer specializing in high-precision zinc alloys, we provide end-to-end solutions—from initial mold design and tooling to advanced surface finishing. Leveraging state-of-the-art hot chamber machinery and rigorous quality control, we produce complex, thin-walled components that meet the tightest tolerances. Whether you require low-volume prototypes or high-volume industrial production, we deliver durable, cost-effective zinc parts tailored to your exact specifications.
±0.01mm
Tolerance
20+
Years Experience
20 Day
Die Casting Samples Delivered
Certifications
ISO 9001 & IATF 16949
What Is Zinc Die Casting?
Zinc die casting is a high-efficiency manufacturing process used to produce complex, high-precision metal parts by injecting molten zinc alloys into steel molds (known as dies) under significant pressure. This process is particularly renowned for its ability to create components with thin walls, intricate details, and exceptional dimensional stability.
Unlike other casting methods, zinc die casting utilizes a hot-chamber machine (gooseneck) process. Because zinc has a relatively low melting point (around 420°C), the injection mechanism can be submerged in the molten metal, allowing for faster cycle times, reduced thermal shock to the molds, and an overall longer tool life compared to aluminum or magnesium casting.
Technical Specifications: Zinc Alloy Properties
To help you select the most suitable material for your custom project, here are the key performance metrics for the most common zinc die casting alloys:
1. Mechanical Performance (Strength & Durability)
Tensile Strength: 283 MPa
Yield Strength: 221 MPa
Hardness (Brinell): 82 HB
Elongation: 10%
Best For: Excellent balance of physical properties and surface finishing.
Tensile Strength: 331 MPa
Yield Strength: 262 MPa
Hardness (Brinell): 91 HB
Elongation: 7%
Best For: Applications requiring higher creep resistance and tensile strength.
Tensile Strength: 359 MPa
Yield Strength: 310 MPa
Hardness (Brinell): 100 HB
Elongation: 7%
Best For: Heavy-duty components needing the highest strength and hardness.
Tensile Strength: 374 MPa
Hardness (Brinell): 103 HB
Best For: Structural parts that need superior strength and creep resistance.
2. Physical Properties (Thermal & Conductivity)
Melting Range: * Zamak Alloys: 380°C – 390°C
ZA-8: 375°C – 404°C
Density: * Zamak Series: 6.6 g/cm³
ZA-8: 6.3 g/cm³
Thermal Conductivity: * Ranging from 104.7 to 114.7 W/m·K, making zinc excellent for heat dissipation in electronics.
Electrical Conductivity: * 25% – 27% IACS, providing effective EMI/RFI shielding.
Which Alloy Should You Choose?
Use Zamak 3 if you need an all-rounder that is easy to plate (Chrome/Nickel) and cost-effective.
Use Zamak 5 if your part will be under higher stress or requires more structural integrity.
Use Zamak 2 or ZA-8 for specialized industrial gears or bushings where wear resistance is the top priority.
Surface Finishing Options for Zinc Die Casting
One of the greatest advantages of zinc alloys is their exceptional suitability for a wide range of surface treatments. Whether you need decorative brilliance, superior corrosion resistance, or increased surface hardness, we offer a variety of finishing services to meet your specific requirements.
Description: A classic metallic finish achieved by immersing parts in an electrolytic solution to deposit a layer of metal.
Key Benefit: Best for high-end decorative looks and superior wear resistance.
Ideal For: Automotive trim, bathroom hardware, and luxury consumer goods.
Description: A dry finishing process where protective powder is electrostatically applied and cured under heat.
Key Benefit: Available in any RAL color with exceptional resistance to scratching and chipping.
Ideal For: Industrial machinery, outdoor enclosures, and colorful household items.
Description: A high-tech vacuum coating process that creates a thin, extremely hard ceramic-like layer.
Key Benefit: Ultra-durable, eco-friendly, and highly resistant to corrosion and sweat.
Ideal For: High-end smart locks, wearable tech, and premium architectural hardware.
Description: A process that uses electrical current to deposit paint uniformly on complex shapes.
Key Benefit: Provides 100% coverage even for deep recesses and intricate internal geometries.
Ideal For: Automotive structural parts and electronic housings.
Description: Using abrasive materials or high-speed buffing to achieve a specific surface texture.
Key Benefit: Removes casting lines and creates a smooth mirror finish or a uniform matte texture.
Ideal For: Preparing surfaces before plating or achieving a modern industrial look.
Description: A chemical pre-treatment that creates a protective film on the zinc surface.
Key Benefit: Acts as a powerful anti-corrosion barrier and enhances paint/coating adhesion.
Ideal For: Internal components requiring basic protection or as a base coat.
Why Choose Zinc Die Casting?
High Precision
Achieve intricate details and "net-shape" parts with zero or minimal secondary machining.
Thin-Wall Strength
Stronger and tougher than plastic or aluminum at much thinner wall thicknesses.
1 Million+ Tool Life
Low melting points mean molds last up to 10x longer than aluminum tooling, drastically saving long-term costs.
Fast Cycle Times
High-speed hot-chamber production ensures shorter lead times and higher volume efficiency.
Superior Finishing
The best substrate for premium chrome plating, PVD, and powder coating.
EMI/RFI Shielding
Natural magnetic shielding properties make it ideal for sensitive electronic components.
Quality Assurance & Testing
Quality is the backbone of our Custom Zinc Die Casting Services. We implement a multi-stage quality control system to ensure every component meets your exact tolerances and performance standards.
Material Certification: Every batch of Zinc alloy (Zamak 3, 5, etc.) comes with a chemical composition report.
Precision Measurement: We utilize CMM (Coordinate Measuring Machines) and 2.5D projectors to verify dimensional accuracy.
In-Process Inspection: Real-time monitoring of injection pressure, temperature, and cycle times to ensure casting consistency.
Surface Quality Check: Rigorous visual and tactile inspections for plating thickness, adhesion, and salt spray testing for corrosion resistance.
X-Ray Flaw Detection: (Optional) To ensure internal structural integrity and zero porosity for critical structural parts.
Other Die Casting Metals Services You May Looking for
Frequently Asked Questions
To provide the most cost-effective solution, our typical MOQ starts from 500 to 1,000 pieces per run, depending on the part’s size and complexity. However, we also support lower volumes for initial prototyping and market testing phases.
Generally, the mold design and fabrication process takes 3 to 4 weeks. Once the tooling is completed, initial samples are usually delivered within 3-5 business days for your final approval.
Zamak 3 is the most popular choice for general applications due to its excellent balance of physical properties and finishing ease. If you require higher strength, Zamak 5 is recommended. Our engineering team can provide a specific recommendation based on your part’s functional environment.
Yes, we are a full-service manufacturer. We provide a complete range of secondary operations, including precision CNC machining, tapping, drilling, and premium surface treatments like chrome plating, powder coating, and PVD.
For the most accurate quote, please provide 3D CAD files in STP, STEP, or IGS formats. We also appreciate 2D drawings (PDF or DWG) for specifying tolerances, thread requirements, and surface finish standards.
Absolutely. We don't just "take orders"—we partner with you. Our engineering team provides a comprehensive Design for Manufacturing (DFM) analysis for every project. We identify potential issues such as draft angles, wall thickness consistency, and gate placement to optimize the casting process, reduce material waste, and lower your overall production costs before the mold is even built.
Our Step-by-Step Manufacturing Process
We simplify the complex manufacturing journey to get your products to market faster. Here is how we work with you:
1. Design & Engineering Consultation
Upload your 3D drawings (STP, STEP, IGS). Our engineers review your design for DFM (Design for Manufacturing) to optimize costs and casting quality.
2. Precision Tooling & Mold Making
We design and build high-durability steel molds in-house. This ensures the 1-million-cycle tool life we promise.
3. Sampling & Prototyping
We provide initial samples for your approval. We won't start mass production until the samples meet 100% of your specifications.
4. High-Speed Die Casting
Using automated hot-chamber machines, we execute the production run with high efficiency and minimal waste.
5. Secondary Machining & Finishing
From CNC trimming and drilling to premium electroplating or powder coating, we handle all post-processing under one roof.
6. Final Inspection & Global Shipping
After a final QC pass, your parts are securely packaged and shipped to your facility, complete with all necessary quality documentation.
Ready to Start Your Next Die Casting Project?
Whether you are in the early design phase or ready for high-volume production, our team is here to help.
Fast Quotes: Get a detailed cost estimate within 24 hours.
Technical Support: Expert advice on alloy selection and DFM.
Reliable Delivery: Consistent lead times you can plan your business around.