Die Casting Services in China

Die casting is a highly efficient and widely utilized manufacturing process that enables the production of complex and precise metal parts with exceptional quality and consistency. It is a preferred choice for various industries due to its versatility, cost-effectiveness, and ability to meet stringent manufacturing requirements. We specialize in die casting services, offering our clients top-notch solutions for their metal component needs. We have extensive experience working with various materials, including aluminum, zinc, magnesium, and copper alloys, allowing us to cater to diverse industry requirements and applications.

Die Casting Process

Die casting involves several key stages that ensure the creation of high-quality metal parts with intricate details and excellent surface finish.

die casting service in China

A. Mold Preparation

Before the die casting process begins, a mold must be designed and manufactured. The mold is typically made from durable materials such as steel or aluminum. Design considerations include part geometry, draft angles, and gating system placement, ensuring optimal filling and cooling of the molten metal.

B. Molten Metal Injection

The die casting process starts with melting the metal, typically done in a furnace. Once the metal reaches the desired temperature, it is injected into the mold under high pressure. The molten metal fills the mold cavity and takes its shape. Cooling channels within the mold allow for controlled solidification of the metal.

C. Mold Opening and Part Ejection

After the metal has solidified, the mold is opened, and the casting is ejected from the cavity. Excess material, such as flash or gate remnants, is removed to obtain the final part with precise dimensions and desired surface finish.

CNC Machining for Die Casting Parts

CNC machining is a valuable post-processing technique for refining die-casting parts to achieve precise dimensions, intricate details, and improved surface finishes. By employing computer-controlled cutting tools, CNC machining can accurately remove excess material, create complex geometries, and add fine features to die-cast parts.

This process ensures tight tolerances, enhances part functionality, and allows for producing high-quality, customized components that meet various industries’ specific requirements. CNC machining is a complementary process to die casting, enabling the production of finished die-cast parts ready for assembly and use.

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Gallery of Die Cast Parts

die casting part
die casting part for automotive
aluminum die casting part
die cast part

Available Die Casting Parts Finishes

Die-casting parts can undergo various finishing processes to enhance their appearance and provide additional protection. Common finishes include smooth finishes for a clean and polished look, powder coating for customizable colors and textures.

And painting for color options and corrosion protection, anodizing for decorative finishes and improved corrosion resistance, plating for enhanced aesthetics and durability, polishing for a high-gloss surface, and brushing or satin finishes for a textured and matte appearance.

The choice of finish depends on the die-casting part’s desired aesthetic appeal and functional requirements.

Types of Die Casting

Die casting can be categorized into three main types: hot chamber die casting, cold chamber die casting, and vacuum die casting.

Hot Chamber Die Casting

Hot chamber die casting suits metals with low melting points, such as zinc and magnesium. The furnace and the injection system are integrated, allowing continuous production. The metal is kept in a furnace, and a piston injects it into the mold cavity under pressure.

Cold Chamber Die Casting

Cold chamber die casting is used for metals with high melting points, like aluminum and copper alloys. In this method, the molten metal is poured into a separate chamber before being injected into the mold. The advantage of this approach is that it allows for the use of high-melting-point metals without damaging the injection system.

Vacuum Die Casting

Vacuum die casting is employed to minimize porosity and improve the quality of the casting. The mold cavity is placed in a vacuum before the metal is injected, reducing the presence of gas or air bubbles. This method is beneficial for parts that require high integrity and surface quality.

Available Die Casting Materials

We offer a wide range of material options suitable for various applications. The choice of material depends on factors such as strength, weight, corrosion resistance, and thermal conductivity.

Aluminum: Aluminum alloys are widely used in die casting due to their excellent strength-to-weight ratio, corrosion resistance, and thermal conductivity. They find applications in automotive components, electronic housings, and aerospace parts.

Zinc: Zinc alloys are known for their high precision and dimensional stability. They commonly produce small parts, such as hardware components and decorative items.

Magnesium: Magnesium alloys provide exceptional strength and lightweight properties, making them suitable for applications that require reduced weight, such as automotive and aerospace industries.

Quality Assurance

Quality control is paramount in die casting to ensure that the produced parts meet the required specifications and performance standards.

A. Process Monitoring and Control
Advanced process monitoring techniques, such as real-time data collection and statistical process control, help identify and rectify potential issues during the die casting process. This ensures consistent part quality and reduces the risk of defects.

B. Inspection and Testing Techniques
Comprehensive inspection and testing techniques, including dimensional inspection, X-ray analysis, and material testing, are employed to validate the quality of die cast parts. Non-destructive testing methods often detect internal defects without damaging the parts.

C. Defects and Remedies
Die casting can encounter defects such as porosity, flash, and cold shuts. Proper mold design, optimized process parameters, and effective quality control measures can minimize or eliminate these defects.

quality control

Advantages of Choosing Our Die Casting Services in China

Expertise and Experience

Our die casting services are backed by a team of skilled professionals with extensive expertise in the field. We have years of experience delivering high-quality die casting products for diverse industries, ensuring exceptional precision and performance.

Customization and Flexibility

We understand that each project is unique, and we offer customization options to meet specific requirements. Our flexibility enables us to accommodate various part complexities, sizes, materials, and finishes, providing tailored solutions that fulfill our client’s needs.

Comprehensive Quality Assurance

Quality is our utmost priority. We have robust quality assurance measures to ensure defect-free parts production. From rigorous inspections and testing to adherence to international quality standards, we guarantee our die-cast parts’ highest quality and performance.

Timely Delivery and Competitive Pricing

We value our clients’ time and budgetary constraints. Our streamlined processes, efficient production, and reliable supply chain enable us to deliver die-cast parts within the agreed-upon timelines. Moreover, we offer competitive pricing without compromising quality, providing excellent value for our client’s investments.


Die casting offers numerous advantages, making it a preferred manufacturing method for many industries.

A. High Production Efficiency
Die casting enables high-speed production, allowing for the quickly creating of large quantities of parts. The process ensures consistent quality and reduces the need for extensive post-processing.

B. Complex Geometries and Thin Walls
Die casting allows for producing intricate parts with complex geometries and thin walls. It enables the creation of detailed features that are difficult to achieve using other manufacturing methods.

C. Excellent Surface Finish
Die-cast parts typically have a smooth and aesthetically pleasing surface finish. Precision molds ensure minimal surface defects, reducing the need for additional surface treatments.

D. Cost-Effective Manufacturing
Die casting offers cost advantages through efficient material utilization, reduced labor requirements, and minimized waste. The high repeatability of the process also contributes to cost savings.

Die casting finds extensive applications in various industries due to its versatility and ability to produce high-quality parts with tight tolerances.

A. Automotive Industry
Die casting is widely employed in the automotive industry to produce engine components, transmission parts, structural parts, and decorative trim. Its ability to create lightweight yet strong parts contributes to fuel efficiency and vehicle performance.

B. Aerospace Industry
In the aerospace sector, die casting is utilized for manufacturing critical components, such as turbine blades, airframe structures, and hydraulic components. Die-cast parts’ high strength and precision are essential for ensuring aircraft safety and performance.

C. Electronics Industry
Die casting is vital in producing electronic components, including housings, heat sinks, connectors, and frames. The ability to create intricate designs with excellent dimensional accuracy is crucial in this industry.

D. Consumer Goods
Die casting is commonly used to produce consumer goods such as appliances, power tools, and furniture hardware. Its ability to produce high-quality parts quickly and cost-effectively meets the demands of the consumer market.

E. Medical Industry
In the medical field, die casting is utilized for manufacturing surgical instruments, diagnostic equipment, and implantable devices. The precision and reliability of die-cast parts are critical in ensuring patient safety and product performance.

The aluminum casting process involves several key steps. These include mold preparation, where the mold is designed and manufactured; molten metal injection, where the aluminum alloy is melted and injected into the mold; and mold opening and part ejection, where the solidified part is removed from the mold, and excess material is trimmed.

The lead time for die-casting production can vary depending on part complexity, quantities, and the service provider’s capacity. You can discuss your project timeline and delivery requirements with us for an accurate estimate.

Yes, die casting is suitable for both small and large production runs. Its high production efficiency allows for cost-effective manufacturing of small quantities, while its scalability makes it capable of handling large-volume production.

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Looking for a custom die casting manufacturer in China? Contact us

Looking for a reliable custom die casting services in China? Look no further! We are your trusted partner for high-quality die-casting solutions. With our expertise, advanced technology, and commitment to excellence, we deliver precision-engineered parts that meet your specific requirements. Contact us today to discuss your project needs, and let us provide you with the customized die-casting solutions you deserve. We look forward to working with you and exceeding your expectations!