Aluminum Die Casting Manufacturer in China

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Die Casting

Our Expertise

die casting injection

Expertise in Mold Design

Whether you're familiar with die casting techniques or not, our R&D teams assist you from the very beginning - mold designing. Guided & assisted by DFM & mold flow tool, our teams offer you the most specialized technical drawings. Our DFM analysis is provided free!


Secondary Operations

Unlike regular factories who do only the die casting job for you, Bian Diecast is fully equipped - you can get your project done in one place! Die casting, CNC machining & finishing in one stop. We aim to save your cost and improve efficiency in the process.


NDA & Certified Files

We highly value your design artworks and are open to signing NDAs upon your request. Additionally, we can provide certified files for auto part, including PPAP, APQP, FMEA, MSA, and SPC, for our die-cast products.


Custom Packaging

Our service is detailed, right down to the packaging. You can choose the ideal packaging – bubble bags, cardboard boxes, plastic frames, dividers, and more – to suit your product's needs. We can also quickly accommodate logo printing or other custom requests on the packaging. Just ask!

Aluminum High Pressure Die Casting Process Overview

How does die casting work? Aluminum die casting is a metal manufacturing method that involves heating aluminum alloy to a liquid state and injecting it into custom molds under high pressure. There are six major steps of how a die-cast part&component is made:
Dive into the aluminum die casting processes below to get a further understanding.

Step 1

Aluminum Die Casting Mold Design

When designing the mold for your aluminum die casting project, we prioritize factors such as manufacturability and cost-efficiency. Our team provides DFM (Design for Manufacturability) support, ensuring that the aluminium die casting mold is not only tailored to your desired part’s shape and dimensions but also optimized for efficient and cost-effective production. The mold is typically composed of two or more halves, facilitating the filling and removal process during casting.

Step 2

Casting Preparation

First, we heat the chosen aluminum alloy to its melting point while readying all necessary materials and equipment. Simultaneously, the injection machine is prepared for the molten aluminum alloy to be injected into the pre-designed mold.

Step 3


The molten aluminum alloy is then injected into the meticulously crafted mold, accompanied by the application of high pressure to ensure thorough cavity filling. After filling, a certain pressure is maintained to keep the aluminum alloy in a liquid state for a specific duration.

Step 4

Cooling and Solidification

As the aluminum alloy cools down, it solidifies and gradually takes on the desired shape within the mold. The cooling duration depends on both the aluminum alloy type and the part’s thickness.

Step 5

Demolding / Removal

Once the aluminum alloy is completely solidified, the mold is opened, and the finished parts are carefully extracted. Specialized equipment is often employed to facilitate this removal process.

Step 6

CNC Machining / Surface Treatment

Depending on specific requirements, the finished parts may undergo additional processes (CNC machining & finishing services) like cutting, drilling, or coating to meet exacting standards.

aluminum die casting

Reliable & Versatile Die-cast Aluminum for Selection

Bian Diecast is an aluminium die casting parts manufacturer who takes pride in offering a diverse spectrum of top-tier die-cast aluminum alloys to cater to a wide range of industrial demands. Our carefully curated selection encompasses three primary categories, each distinguished by its unique set of properties and applications.

Common Die-cast Aluminum Alloys

Below are some of the commonly used aluminum alloy grades by our customers, known for their excellent flowability, mechanical properties, and corrosion resistance. They are frequently employed in the manufacturing of various aluminum die-cast parts.

EU Grade Aluminum Alloy Materials

These alloys offer excellent fluidity and abrasion resistance, making them suitable for manufacturing and machining various complex-shaped parts and components, including automotive components, engine housings, electronic equipment enclosures, household items, and more.

High Thermal Conductivity Alloy Materials

These alloys exhibit excellent thermal conductivity, making them suitable for applications that require efficient heat dissipation. They find widespread use in electronics, automotive, aerospace, and other high-temperature environments.

Types of Die Casting Metal We Supply

Bian Diecast is a full-service die casting manufacturer who can provide excellent zinc and aluminum die casting services for your specific project requirements. Our expertise in die casting allows us to provide high-quality, precision zinc and aluminum die casting parts that meet the specific requirements for your project.

Aluminum Die Casting Services

Zinc Die Casting Services

Custom Aluminum Die Casting Parts for A Wide Range of Industries

When precision and reliability matter, custom die cast parts are the go-to solution across various industries. At Bian Diecast, we specialize in crafting high-quality die casting aluminum housing components and custom die cast parts tailored to meet the unique demands of diverse sectors:
Die casting is widely used in the automotive sector to create components like engine and chassis parts, transmission components, electrical system parts, and body or interior/exterior parts. These components are known for their strength, durability, and precision, making them crucial for vehicle performance and safety.
In the lighting industry, die casting is utilized for producing components such as lamp housings, heat sinks, and reflectors. Die-cast parts offer excellent thermal conductivity, ensuring efficient heat dissipation in lighting fixtures, which is essential for their longevity and performance.
Die casting plays a significant role in the electronic industry by manufacturing enclosures, connectors, and heat sinks for electronic devices. These components require precise dimensions, high thermal conductivity, and electrical insulation, making die-cast parts an ideal choice.
Die-cast furniture parts are used in the production of chairs, tables, and various furniture pieces. These parts are appreciated for their durability, precise dimensions, and attractive surface finishes. They contribute to the aesthetics and functionality of furniture products.
In construction, die casting provides high-quality construction hardware, including door and window hardware, furniture hardware, and stairway components. These parts must meet strict standards for dimensions and durability to ensure they integrate seamlessly into construction projects.

Cold Chamber HIGH Pressure Die Casting Capability

There are two primary methods for die casting: hot chamber die casting and cold chamber die casting. For aluminum alloy die casting, we primarily employ cold chamber pressure die casting machines, while the hot chamber method is often used for alloys like zinc due to their lower melting points.

At Bian Diecast, our factory is fully equipped with a variety of die casting machines. Each machine is capable of producing at least 2000 to 3000 die casting components per day. The largest casting area reach 3125cm².

A brief list of our high pressure die casting machines catering to different sizes of parts:
1250T Die Casting Machine 900T Die Casting Machine 800T Die Casting Machine
500T Die Casting Machine 400T Die Casting Machine 300T Die Casting Machine
die casting machines

Aluminum Die Casting Price

These prices indicate the cost range for producing one unit of a product using the respective die-casting machine. The actual aluminum die casting cost within each range may vary depending on factors such as the complexity of the part, material used, and other production variables.

Die Casting Machine ModelPricing for Reference ($ per unit)
1250T Die Casting Machine $3-5
900T Die Casting Machine $1.5-2
800T Die Casting Machine $1.0-1.5
500T Die Casting Machine $0.7-1.0
400T Die Casting Machine $0.5-0.7
300T Die Casting Machine $0.3-0.4

Get Aluminum Die Casting Services at One Stop!

Bian Diecast provides comprehensive assistance for your project, including mold design, die casting, CNC machining and surface finishing services. Don’t hesitate to get in touch with us!
metal die casting machine

Aluminum Die Casting Services in China

The Bian Diecast Differences

Bian Diecast, an aluminum die casting factory, is located in Nanhai District, Foshan City, China. With over a decade of expertise in die casting, we are committed to providing comprehensive die casting services. Apart from specialized mold design and development, we have an advanced factory and workshops that integrate die casting, CNC precision machining, and surface finishing services, catering to diverse needs across various industries.

Currently, we have accumulated years of service experience in the automotive, lighting, electronics, furniture, and construction industries. With a solid foundation in project management, we aim to become a strategic supplier to many renowned global brands.

real time monitor

Project Management Excellence You Can Rely On

At Bian Diecast, efficiency & transparancy are at the core of our project mangement philosophy. Our goal is to empower our customers to closely monitor their orders while relieving them of the burdens of day-to-day project management tasks.
mold design

What is Die Casting Mold?

Die casting mold, also known as a die, is a tool used in the die casting process to create metal parts with high precision and accuracy. The mold is a hollow cavity that is used to shape molten metal into a specific form through a process known as die casting. Die casting molds are typically made from steel and have two distinct halves that come together to form the desired shape of the final part. The mold is designed with intricate details and features to ensure that the final part meets the required specifications and tolerances. Die casting molds can be used repeatedly to produce large quantities of identical parts quickly and efficiently.

Mold Design Process at Bian Diecast

As a China die casting factory, we provide high-quality die casting mould design services to meet your project quality criteria.

1. Order inquiry and Confirm

Firstly, our dedicated team will engage with you to understand your specific needs and requirements for the project. Once all details are clarified and confirmed, we will proceed with the formal placement of the order to kickstart the project.

2. New Mold Meeting

In our new mold meeting, we bring together our expert team to discuss and finalize critical aspects of the project. This includes finalizing critical aspects such as material suppliers, technical requirements, and mold flow analysis.

3. Mold Structure Design Review

We present the completed 2D/3D mold design for your review and confirmation. This involves meticulous preparation of the mold making process and schedule, procurement process control, and inspection of mold materials and standard parts.

4. Mold Trial & Video Archiving

Following the completion of the mold, our team will meticulously inspect the trial samples and generates detailed reports, including CMM analysis. Additionally, we onductarchive videos for transparency and documentation.

5. T1 Sample Confirmation

Upon the completion of T1 sample produced from the mold, we present it to you for thorough examination and confirmation. Your input and approval are essential as we strive to deliver products that meet and exceed your expectations.

6. Small-batch Trial Production

To ensure the quality and functionality of the mold, we will conduct small-batch trial production. By meticulously assessing the performance of the mold in a real-world production setting, we can ensure any aspects to meet your specific requirements.

7. Quality Inspection

Our team conducts rigorous inspections throughout the mold making process to uphold our high standards. From inspecting the mold design to monitoring the production process and evaluating the final products.

8. Product Delivery

As we near the completion of the project, our focus shifts to ensuring a seamless delivery experience for you. At Bian Diecast, we ensure prompt delivery of finished products to meet your specifications.

Hot Chamber Die Casting vs. Cold Chamber Die Casting

AspectHot Chamber Die CastingCold Chamber Die Casting
Metal TypesSuitable for low melting point metals (e.g., zinc, magnesium)Suitable for high melting point metals (e.g., aluminum, copper, some zinc alloys)
Metal Melting ProcessMetal is melted in the machineMetal is melted in a separate furnace and ladled into the machine
Casting SpeedFaster process due to continuous availability of molten metalSlower process as metal needs to be manually ladled into the machine
Part Size and ComplexityBest for smaller and intricate parts requiring high precisionIdeal for larger and more complex parts needing higher strength and better surface finishes
VersatilityLimited to metals with low melting pointsCan handle a wide range of metal alloys and part sizes
EfficiencyHigh productivity and efficiency due to continuous melting and injection processAbility to control temperature of metal for better mechanical properties and surface finishes

FAQs on Die Casting

What are the minimum tolerance requirements for certain precision aspects of the product? What is the minimum draft angle, and what about linear and angular tolerances?

The minimum tolerance requirements depend on the size of the product.

For dimensions up to 200mm, tolerances of ±0.1mm or better are required.

For dimensions up to 300mm, tolerances of ±0.2mm or better are necessary;

and for dimensions up to 500mm, tolerances of ±0.3mm or better are expected.

As for draft angles, a minimum of 1 degree is required, but larger angles are preferred for smoother ejection from the mold.
These tolerance specifications are essential to ensure the precision and quality of die-cast products.

What about the lifespan of your die casting mold?

50,000 shots before replacement or refurbishment. If the old die-casting mold reaches the end of its service life, we can replicate a new mold for you

What are the differences between cold chamber & hot chamber die casting? (Cold chamber die casting VS hot chamber die casting)

Cold Chamber Die Casting: This method is suitable for materials with higher melting points like aluminum and magnesium. The metal is melted in a separate furnace and then injected into the cold chamber machine. It’s ideal for casting durable and lightweight parts but can be a bit slower due to the need for metal transfer.

Hot Chamber Die Casting: Designed for materials with lower melting points, such as zinc. In this process, the metal remains in a molten state within an integrated furnace connected to the machine. Hot chamber die casting is faster and more efficient for casting smaller, intricate parts, making it cost-effective for high-volume production.

Why are your mold prices higher than those of most other factories?

Our mold prices are fair and reasonable, and we don’t aim to profit excessively from our customers on mold costs. Moreover, for customers with large order volumes, in the event that a mold becomes unusable, we offer the option of creating a new mold at no additional cost. Additionally, factors contributing to the pricing of molds include the strength and material selection in the mold design.

How do you handle sustainable practices in aluminum die casting?

Sustainability is a key consideration in our operations. We prioritize sustainable practices by minimizing waste, recycling materials, and implementing energy-efficient processes. Here at Bian, for the sake of material purity, our company utilizes a central melting furnace for the concentrated melting and refining of recycled materials before their reuse. We enforce strict control measures throughout the aluminum die casting process, including incoming raw material inspections, periodic testing of material composition every two hours, and regular third-party testing.

What certifications do you hold for quality assurance?

We hold several certifications that attest to our commitment to quality and adherence to industry standards. These certifications include ISO 9001 for quality management, ISO 14001 for environmental management, and IATF 16949, which is specific to the automotive industry. These certifications provide B2B clients with confidence in our processes and our ability to consistently deliver high-quality products.

What are the advantages of aluminum die casting?

– High precision and tight tolerances

– Efficient production of complex shapes

– Lightweight and durable

-Excellent heat dissipation

-Cost-effective for large quantities

Can you assist with design optimization for manufacturability?

Yes, our expert team provides Design for Manufacturability (DFM) services to our clients. We collaborate on designs to ensure efficient production, reducing costs and time to market.

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