Zinc Die Casting Services
Custom zinc die casting services for OEM manufacturers, delivering precision zinc alloy castings from tooling development to casting production, CNC machining, surface finishing, and final inspection.
- Factory-Direct Pricing
- Dedicated Engineering Support
- Reliable Lead Time
Quality Certifications
ISO 9001:2015 | IATF 16949:2016
STP I SLDPRT I IPT I PRT I SAT FLES
All uploaded content is secure and confidential.
Trusted by companies like
Zinc Die Casting with ZH Precision
ZH Precision is a custom zinc die casting manufacturer specializing in Zamak alloy components for OEM customers. Our zinc die casting workshop is equipped with 128T–400T hot-chamber die casting machines, supported by ISO 9001:2015 and IATF 16949:2016 certified quality systems to ensure consistent part quality and production reliability.
We manufacture zinc die cast parts including housings, brackets, covers, enclosures, connectors, and mechanical components. Each project is managed according to part geometry, functional requirements, and assembly specifications.
Our Zinc Die Casting Capabilities
We provide a one-stop zinc die casting solution covering DFM analysis, mold manufacturing, die casting, CNC precision machining, surface finishing, and final inspection, helping customers simplify supplier management and reduce manufacturing complexity.
DFM Analysis
Part designs are reviewed to optimize casting feasibility, including wall thickness, draft angles, parting lines, and functional requirements before tooling development.
Mold Manufacturing
Custom molds are manufactured according to part specifications to achieve stable production performance and consistent casting results.
Zinc Die Casting
Zinc alloy components are produced using hot-chamber die casting processes to achieve complex geometries, dimensional accuracy, and efficient production.
CNC Precision Machining
Secondary machining operations are available for critical features such as holes, threads, and precision surfaces requiring tighter dimensional control.
Surface Finishing
Various finishing options are provided to improve surface appearance, corrosion resistance, and functional performance of zinc die cast components.
Final Inspection
Finished parts undergo dimensional verification and quality checks to ensure compliance with project requirements before delivery.
Zinc Die Casting Tolerances
Zinc die casting tolerances are controlled according to ISO 8062-3 casting standards, with general dimensional tolerances following ISO 2768-m. For critical features requiring higher accuracy, secondary CNC machining can achieve tolerances down to ±0.01 mm depending on part requirements.
| Description | Specification |
|---|---|
| Casting Standard | ISO 8062-3 |
| General Tolerance | ISO 2768-m |
| Dimensional Tolerance | ±0.03 mm – ±0.10 mm |
| Machined Feature Tolerance | ±0.01 mm |
| Minimum Wall Thickness | 0.4 mm |
| Maximum Part Size | 500 mm × 350 mm × 100 mm |
| Prototype Lead Time | 3–5 working days |
| Mass Production Lead Time | 25–30 working days |
Start Your Zinc Die Casting Project
Share your drawings and specifications with our engineering team. We provide a transparent quote within 6 hours based on tooling requirements, production processes, and finishing options.
Zinc Die Casting Materials
Certified zinc alloys, including Zamak 3, Zamak 5, and Zamak 7, are available for custom die casting projects. Material composition and batch traceability are controlled before production to ensure consistent casting quality and reliable part performance.
Zamak 3 Zinc Alloy
Zamak 3 is the most widely used zinc die casting alloy, offering excellent castability, dimensional stability, and surface finish. It is suitable for precision components with complex geometries and consistent dimensional requirements.
| Property | Typical Range |
|---|---|
| Density | 6.6 g/cm³ |
| Tensile Strength | 280–310 MPa |
| Yield Strength | 210–240 MPa |
| Elongation | 8–12% |
| Hardness | 80–90 HB |
| Thermal Conductivity | 110–115 W/m·K |
Zamak 5 Zinc Alloy
Zamak 5 provides higher strength and hardness than Zamak 3, making it suitable for zinc die cast parts requiring improved mechanical performance, wear resistance, and structural reliability.
| Property | Typical Range |
|---|---|
| Density | 6.7 g/cm³ |
| Tensile Strength | 320–350 MPa |
| Yield Strength | 230–260 MPa |
| Elongation | 5–8% |
| Hardness | 85–95 HB |
| Thermal Conductivity | 105–110 W/m·K |
Zamak 7 Zinc Alloy
Zamak 7 offers improved fluidity and ductility, making it suitable for thin-wall components, detailed features, and precision zinc die casting parts requiring excellent surface quality.
| Property | Typical Range |
|---|---|
| Density | 6.6 g/cm³ |
| Tensile Strength | 270–300 MPa |
| Yield Strength | 200–230 MPa |
| Elongation | 10–15% |
| Hardness | 75–85 HB |
| Thermal Conductivity | 110–115 W/m·K |
Zamak 7 Zinc Alloy
ZA-8 provides higher strength and creep resistance compared with standard Zamak alloys. It is suitable for applications requiring enhanced mechanical performance and improved load-bearing capability.
| Property | Typical Range |
|---|---|
| Density | 6.3 g/cm³ |
| Tensile Strength | 370–400 MPa |
| Yield Strength | 280–320 MPa |
| Elongation | 5–8% |
| Hardness | 95–110 HB |
| Thermal Conductivity | 105–110 W/m·K |
Surface Finishes for Zinc Die Casting Parts
Die cast parts can be finished with anodizing, polishing, sand blasting, tumbling, electropolishing, Alodine, and electroplating based on alloy type and application needs. These finishes improve appearance, corrosion resistance, and surface performance.
As Cast
Maintains the original die casting surface with natural texture and appearance.
Tumbling
Removes burrs, smooths sharp edges, and improves overall surface consistency.
Polishing
Provides a smooth and bright finish for decorative and visible components.
Bead Blasting
Uses fine glass beads or ceramic beads to create a uniform matte texture with minimal material removal.
Electroplating
Applies metal coatings such as nickel or chrome to improve corrosion resistance and appearance.
Powder Coating
Provides a durable protective coating with excellent corrosion resistance and color options.
Painting
Offers customized colors and additional surface protection for various applications.
Conversion Coating
Improves corrosion resistance and enhances coating adhesion for subsequent finishing processes.
Zinc Die Cast Parts Applications
Zinc die cast parts are widely used for precision components requiring complex geometries, dimensional stability, and reliable performance, including electronic housings, automotive brackets, mechanical hardware, and other industrial assemblies.
Automotive Industry
Used for brackets, housings, locking mechanisms, and mechanical components requiring strength and dimensional stability.
Electronics Industry
Suitable for enclosures, frames, and structural components used in electronic devices and electrical assemblies.
Consumer Products
Ideal for decorative and functional parts with complex designs, excellent surface finishes, and consistent quality.
Industrial Equipment
Applied in machinery components, hardware parts, and equipment assemblies requiring reliable performance.
Electrical Applications
Commonly used for connectors, housings, and components requiring durability and precise dimensions.
Appliance Industry
Used for handles, brackets, housings, and functional components in home appliances and equipment.
Zinc Alloy Connector Housing
Control Focus:
Critical casting parameters including melt temperature, injection speed, pressure profile and cycle time are controlled throughout production. Process monitoring ensures stable cavity filling, consistent wall thickness and repeatable dimensional accuracy while minimizing common defects such as cold shuts, porosity and incomplete filling.
Process Technology:
Hot-chamber die casting is applied for efficient production of complex zinc alloy housings. Optimized mold temperature control, gating and runner design improve metal flow and surface quality. After casting, automated trimming, dimensional inspection and surface evaluation are performed to maintain consistent production quality for high-volume OEM applications.
What is Zinc Die Casting
Zinc die casting is a high-pressure mass-production metal forming process mainly carried out on hot-chamber die casting machines. Low-melting-point Zamak zinc alloys are melted and hydraulically injected into precision-hardened steel dies to manufacture near-net-shape parts with outstanding dimensional precision and elaborate geometric features.
Zinc alloys boast better fluidity, mold filling performance and dimensional stability than aluminum and magnesium alloys, supporting the production of ultra-thin walls, fine embossments and complex multi-cavity parts with tight tolerances. The smooth as-cast surface reduces extra finishing work, and finished zinc castings are compatible with electroplating, nickel-chrome plating, powder coating, passivation and polishing.
Frequently Asked Questions
To provide an accurate quotation, we typically need 3D CAD files, 2D drawings, material requirements, surface finish requirements, estimated annual quantity, and any critical dimensional or functional requirements. This helps evaluate tooling, process feasibility, and production costs.
Yes. ZH Precision supports custom zinc die casting projects from initial design review and prototype validation to stable production. Manufacturing solutions are evaluated based on part requirements, production volume, tooling needs, and delivery expectations.
Production quality is controlled through process monitoring, dimensional inspection, and final quality checks. Key parameters such as injection conditions, mold performance, and critical part dimensions are controlled to maintain consistent results throughout production batches.
Zinc die casting is suitable for components requiring complex geometries, thin walls, fine details, tight dimensional control, and high production repeatability. Design feasibility is reviewed through DFM analysis before tooling development.
Zinc die cast parts can be combined with secondary processes including CNC machining, drilling, tapping, deburring, polishing, plating, coating, and assembly services to meet final application requirements.