Custom Zinc Die Casting Manufacturer & Supplier

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Why choose Zuerst for metal casting services?

One-stop solution

•We have excellent quality and high efficiency

At Zuerst, we will introduce advanced metal casting equipment, professional quotation personnel, and combine the latest tools and technologies in the industry. We will provide high-quality services in a short time.

•We provide finishing services to enhance your products

As a one-stop shop, we offer a wide range of complementary finishing services to ensure your products come out perfect. These services include machining, sandblasting, printing and painting.

•We provide intelligent quotes for every project

Our expert engineers will analyze your design in detail and provide a fast, accurate quote for nearly any project in 24 hours or less.

•We offer full manufacturing support and design for remote flexibility

We offer detailed design and manufacturing support to our customers and can even make mock-ups for you. In addition, for customers who are unable to visit in person, we provide detailed video documentation showing all production steps, ensuring you have a complete understanding of the production process.

Metal Casting Technical Standards

Dimension	Standards
Minimum part weight	1g
Maximum part weight	10 kg
Minimum part size	20×10×5 mm
Maximum part size	750×600×300 mm
Minimum wall thickness	1.5 mm
Maximum wall thickness	40 mm
Minimum possible batch	500 pcs

Metal Casting Capabilities

We offer a wide range of metal casting services, including both low-pressure and high-pressure die casting, tailored to meet your specific requirements. To ensure exceptional quality, we utilize state-of-the-art metal casting techniques and equipment, delivering results that meet the highest standards.

Die Casting

Sand Casting

Vaccum Casting

Squeeze Casting

Gravity Casting

What is Die Casting?

Die casting is a highly efficient manufacturing process for producing detailed, high-volume metal parts. It uses specialized molds, called dies, which allow for the simultaneous production of multiple components, ensuring consistency and efficiency. The process involves melting metals like aluminum and zinc and injecting them under high pressure into the molds.

The rapid cooling and solidification capture intricate designs and details, minimizing the need for extensive secondary operations. However, some projects may still require post-machining to achieve tighter tolerances.

At ZUERST, we carefully review each die casting project to ensure that our methods meet your specific requirements. We focus on optimizing production flow and maintaining high standards of durability and aesthetic quality. Using advanced casting techniques and precision die casting machines, we deliver results that enhance both the functionality and appearance of your products, adding value across every project.

Application of Die Casting

The versatility and high production potential of die casting make it suitable for a wide range of applications and industries, especially for small to medium-sized parts with complex features. Typical applications include consumer goods, industrial products, and automotive equipment parts. Die casting is an ideal choice when large quantities of metal parts are required and these parts may be too large or cost-prohibitive for other high-volume processes such as metal injection molding (MIM).

Auto Parts

Electrical appliances and lighting

Outdoor lighting

Connector housing

Gear

Pumps and Plumbing Fixtures

Advantages of Die Casting

accurate

Typical tolerances for die castings are +/- 0.003 to 0.005 inches per inch.

strength

Metal die castings are stronger and more temperature resistant than plastic injection molded parts, and metals like aluminum also have an excellent strength-to-weight ratio.

Complex Geometry

Die casting reliably produces custom parts with thin walls and complex geometries that are durable and dimensionally stable.

Custom finishes

Metal finishers can produce castings with smooth or textured surfaces, painted and plated finishes, and finishing can prevent corrosion and improve appearance.

For die casting metal materials

Aluminum Die Casting

Aluminum alloy is the most commonly used material in die casting because it is fully recyclable and easy to process. The advantages of cast aluminum parts include:
•High strength-to-weight ratio
•Dimensional stability
•Various surface treatment options
•Withstands high operating temperatures
• Corrosion resistance
•Good stiffness
• High thermal and electrical conductivity

These properties make cast aluminum parts widely used in several industries.

Zinc die casting

Zinc is one of the easiest materials to process in die casting and is suitable for hot chamber processes. It has the following advantages:
•Excellent casting fluidity
• Lower melting point
•High strength and stiffness, allowing the manufacture of thin-walled and detailed parts
•Tight tolerance holding capability
•Rapid cooling and solidification to improve production efficiency
•Balanced mechanical and physical properties such as:
- High impact strength
- High hardness
- High stability
- Easy to apply high-quality surface treatment and plating

These properties make zinc an ideal choice for die casting applications.

Which metals are best for die casting?

The most commonly used die casting metals include:
•Zinc alloy: low cost, suitable for small and thin-walled parts.
•Aluminum alloy: light weight, high strength, suitable for automotive and aviation industries.
• Magnesium alloy: extremely light, suitable for weight-sensitive applications.
• Copper alloy: high electrical and thermal conductivity, but high cost.

These metals are widely used due to their specific physical and mechanical properties.

Surface treatment

Powder coating

Die castings can be powder coated, which is a method of applying powder coatings electrostatically and curing at high temperatures. Powder coatings are strong, wear-resistant and corrosion-resistant, and are more durable than traditional wet paints. A variety of color options are available to meet aesthetic needs.

Chemical Film

Chromate conversion coatings are effective in protecting aluminum from corrosion and improving paint adhesion, but are limited by the fact that they contain hexavalent chromium. Chromium-free alternatives are becoming more widely adopted. As for electrical conductivity, conversion coatings generally do not have this property.

Standard (casting)

Zinc and aluminum zinc parts have good corrosion resistance in the cast state, while aluminum parts need to be coated to enhance corrosion resistance.
Castings often have rough marks at the gate, and ejector pins can also leave obvious marks.
The surface finish of cast zinc alloys is usually 16 to 64 microinches Ra, and the surface is relatively smooth.

Anodizing (Type II or Type III)

Aluminum is typically anodized. Type II anodizing creates a corrosion-resistant oxide coating. Although suppliers can anodize parts in different colors, anodizing the surface of a die casting may not be aesthetically pleasing. In contrast, Type III anodizing is thicker and creates a protective layer that resists wear in addition to the corrosion resistance of Type II. It is important to note that the anodized coating itself is not conductive.

Bead Blasted

The surface of the part has a smooth but matte appearance.

Media Tumbled

The die-cast material is tumbled through a vibrating medium, removing burrs and smoothing the surface.

plating

Die cast parts can receive a variety of surface treatments, including electroless nickel, nickel, brass, tin, chrome, chromate, Teflon, silver and gold, to enhance their corrosion resistance, wear resistance and appearance.

Wet Painting

All die cast parts can be wet coated with a variety of paint formulations and colors. The wet coating process provides a uniform coating and different paints and colors can be selected according to specific needs to achieve the desired appearance and protection.

What are the steps in the die casting process?

Whether it is hot chamber die casting or cold chamber die casting, the standard process involves injecting molten metal into a mold under high pressure. The following are the steps in a complex die casting process:

Step 1

Clamping.

Before injecting the molten metal, the mold needs to be cleaned and lubricated for better injection and removal of the solidified product. After that, the mold is clamped and closed with high pressure.

Step 2

Injection.

The metal is melted and poured into the sintering chamber, where it is then injected into the mold under high pressure, usually generated by a hydraulic system.

Step 3

Cooling.

The molten metal cools and solidifies inside the mold, forming the desired shape.

Step 4

Ejection.

Once the mold is open, the ejector mechanism pushes the solidified casting out of the mold. Make sure the casting is fully solidified before ejecting.

Step 5

Trim.

Remove excess metal from gates and runners. This can be done with a trim die, sawing, or other methods.

Products Display

Metal Casting FAQs

Why use casting instead of a more accessible process like CNC machining?

Metal casting can be used to make very large parts with high tensile strength and complex parts with undercuts. Sometimes there is no alternative.

Can you combine casting with other techniques?

We are adept at CNC machining extra features (such as engraving and minor details) onto cast parts.

Is there a minimum order quantity?

We generally accept metal casting orders of no fewer than 10 units.

How can I pay ZUERST?

ZUERST accepts payments in two ways: 1.Bank to bank wire transfer 2.PayPal

Production Process

1. Order confirmation: The manufacturer confirms the order details with the customer. 2. Manufacturing process confirmation: The customer confirms the manufacturing process used. 3. Sample confirmation: Provide casting samples for customer confirmation to ensure compliance with requirements. 4. Casting production: Carry out large-scale production according to the confirmed process. 5. Quality inspection: Carry out strict quality inspections during the production process to ensure that each product meets the standards. 6. Shipping: Send qualified products to customers through appropriate means. These steps help ensure that every link from design to finished product meets customer expectations.

Why Choose ZUERST?

Experience and Expertise With over two decades of experience in metal casting, ZUERST brings unparalleled expertise to every project. Our skilled team utilizes advanced technology to deliver precise and high-quality components to ensure your project is a success. Quality and Certifications We are committed to maintaining the highest quality standards. ZUERST is ISO 9001:2015 and AS9100D certified, guaranteeing reliable, consistent production results that meet industry requirements.

Customer Support Our dedicated customer support team is available 24/7 to assist you. Whether you need technical guidance or have a specific project inquiry, our experts will provide you with timely and effective solutions, ensuring a smooth and efficient process from start to finish.

Get Started

Ready to begin your metal casting project with ZUERST? Request a quote or contact us for more information. Simply upload your CAD files to receive instant feedback and pricing. Our team is here to support you every step of the way, ensuring precision and efficiency for all your metal casting needs.

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Your trusted partner for 3C digital accessories. From R&D and design to mass production, we provide you with the best service with expert guidance, fast delivery and excellent quality.

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