China has a large and diverse aluminum die casting industry, with manufacturers serving automotive, electronics, industrial machinery, energy equipment, lighting, and many other markets.
For buyers, however, finding a suitable supplier involves more than comparing prices. Production capacity, die casting experience, tooling, CNC machining, quality control, secondary processing, and communication can all affect the final result.
This guide introduces 10 aluminum die casting manufacturers in China with different capabilities and market focuses. Some are large automotive suppliers, while others are better suited to custom parts, machining-intensive projects, or broader manufacturing requirements.
Top Aluminum Die Casting Manufacturers in China at a Glance
| Manufacturer | Location | Main Capabilities | Main Markets | Best For |
|---|---|---|---|---|
| Yongzhu Casting | Zhejiang | Die casting, mold making, CNC machining, multiple casting processes | Industrial, automotive, energy, lighting | Custom drawing-based parts |
| Lijia Group | Jilin | Aluminum die casting, stamping | Automotive | Automotive components |
| Dalian Yaming Automotive Parts | Liaoning | Die casting, tooling, machining | Automotive, EV | Automotive housings and components |
| Guangdong Hongtu Technology | Guangdong | Precision aluminum die casting, machining | Automotive | Large automotive programs |
| Ningbo Delron Industrial | Zhejiang | Die casting, CNC machining, finishing | Automotive, lighting, industrial | Machining-intensive custom parts |
| Chongqing Millison Technologies | Chongqing | HPDC, tooling, machining, finishing | Automotive, telecom, energy storage | Large-volume precision die casting |
| Wencan Group | Guangdong | HPDC, low-pressure casting, gravity casting | Automotive, EV | Large and integrated automotive castings |
| IKD Co., Ltd. | Zhejiang | Precision die casting, machining, tooling | Automotive | High-volume precision automotive parts |
| Yangzhou Kaixiang Precision Casting | Jiangsu | Aluminum die casting, machining | Automotive | Transmission and automotive components |
| EMP Tech Co., Ltd. | Guangdong | Tooling, HPDC, CNC machining, finishing | Automotive, EV, industrial | Integrated die casting and machining |
How We Selected These Aluminum Die Casting Manufacturers
The companies in this guide were selected to represent different types of aluminum die casting capability available in China rather than to create an absolute industry ranking.
We considered factors such as die casting experience, tooling and machining capabilities, industries served, production scale, secondary operations, and publicly available company information.
The companies also vary significantly in size and specialization. Some focus heavily on large automotive programs, while others provide more flexible custom manufacturing for customers sourcing parts from drawings.
1. Zhejiang Yongzhu Casting Technology Co., Ltd.
Location: Zhejiang, China
Founded: 2004
Main Capabilities: Aluminum die casting, mold making, CNC machining, sand casting, gravity casting
Best For: Custom metal parts manufactured from customer drawings
Yongzhu Casting is a custom casting and machining manufacturer based in Zhejiang Province. The company works with customer drawings and project requirements rather than supplying only a fixed catalog of standard components.
Its manufacturing capabilities include aluminum die casting, mold making and machining, while additional casting and metalworking processes are available for projects that require different production methods. Applications include automotive parts, energy equipment, lighting components, machinery, medical equipment and other industrial products.
This broader manufacturing approach can be useful when a project requires casting together with subsequent machining or other secondary operations.
Learn more about our custom aluminum die casting capabilities.
2. Lijia Group Co., Ltd.
Location: Jilin, China
Main Capabilities: Aluminum die casting and related component manufacturing
Main Market: Automotive
Best For: Automotive and engine-related components
Lijia Group is involved in aluminum die casting and component manufacturing, with a strong connection to the automotive supply chain. Its registered business scope includes aluminum die castings, stamped parts, plastics manufacturing and metal processing.
The company has historically supplied components associated with engines, transmissions and other automotive systems. It is therefore more relevant to buyers seeking an established automotive-oriented supplier than to projects requiring a broad range of unrelated industrial castings.
3. Dalian Yaming Automotive Parts Co., Ltd.
Location: Dalian, Liaoning
Founded: 1996
Main Capabilities: Aluminum casting, mold manufacturing and machining
Main Market: Automotive
Best For: Automotive and new-energy vehicle components
Dalian Yaming Automotive Parts specializes in automotive component manufacturing and has experience in non-ferrous metal casting, mold manufacturing and mechanical processing.
Its registered business activities also include new-energy vehicle components, motorcycle parts and other engineered products, showing a strong orientation toward transportation and precision manufacturing.
4. Guangdong Hongtu Technology Co., Ltd.
Location: Zhaoqing, Guangdong
Founded: 2000
Main Capabilities: Automotive precision aluminum die casting and machining
Main Market: Automotive
Best For: Large automotive die casting programs
Guangdong Hongtu Technology is a publicly listed industrial group with die casting as one of its major business sectors. Its die casting operations focus heavily on automotive precision aluminum alloy components.
Compared with smaller custom manufacturers, Hongtu is particularly relevant to large automotive sourcing programs that require substantial production capacity, automated equipment and established quality systems.
5. Ningbo Delron Industrial Co., Ltd.
Location: Ningbo, Zhejiang
Founded: 1990
Main Capabilities: Die casting, CNC machining, turning, milling, stamping and finishing
Main Markets: Automotive, lighting, electrical tools and industrial equipment
Best For: Parts requiring significant secondary machining
Delron combines die casting with a wide range of machining and secondary manufacturing processes. Its capabilities include CNC machining, turning, milling, stamping, honing, precision casting and product assembly.
The company also lists processes such as heat treatment, powder coating, chrome plating and vibratory finishing.
6. Chongqing Millison Technologies Inc.
Location: Chongqing
Founded: 2001
Main Capabilities: Aluminum high-pressure die casting, tooling, precision machining and surface treatment
Main Markets: Automotive, telecommunications and energy storage
Best For: High-volume precision die cast components
Millison is a listed manufacturer specializing in aluminum high-pressure die castings. Its main markets currently include automotive, telecommunications and energy storage, and it operates manufacturing sites in several regions of China.
Its production capabilities extend from mold design and manufacturing through die casting, precision machining, surface treatment and component assembly.
7. Wencan Group Co., Ltd.
Location: Guangdong, with multiple manufacturing bases
Founded: 1998
Main Capabilities: High-pressure, low-pressure and gravity aluminum casting
Main Market: Automotive and new-energy vehicles
Best For: Large automotive and integrated structural castings
Wencan Group is a Shanghai Stock Exchange-listed company focused on automotive aluminum alloy precision castings. Its manufacturing processes include high-pressure casting, low-pressure casting and gravity casting.
The company has placed significant emphasis on automotive lightweighting and large integrated castings, including body structures, battery housings, chassis systems and new-energy powertrain components.
8. IKD Co., Ltd.
Location: Ningbo, Zhejiang
Founded: 2003
Main Capabilities: Precision aluminum die casting, tooling, machining, finishing and assembly
Main Market: Automotive
Best For: High-volume precision automotive components
IKD specializes in precision aluminum alloy die cast parts for the automotive industry. Its manufacturing process covers tooling development, die casting, trimming, heat treatment, precision machining, surface treatment and assembly.
Products are used in areas such as automotive transmission, steering, engine, braking and wiper systems.
9. Yangzhou Kaixiang Precision Casting Technology Co., Ltd.
Location: Yangzhou, Jiangsu
Founded: 1993
Main Capabilities: Aluminum die casting and precision machining
Main Market: Automotive
Best For: Transmission housings and automotive components
Yangzhou Kaixiang has many years of experience producing precision aluminum die cast components for the automotive sector.
Its manufacturing background includes die casting production lines and precision horizontal and vertical machining centers. The company has developed products for transmission systems, housings and other automotive applications and continues to work in both conventional and new-energy vehicle sectors.
10. EMP Tech Co., Ltd.
Location: Zhaoqing, Guangdong
Main Capabilities: Tooling, high-pressure die casting, CNC machining and inspection
Main Markets: Automotive, EV and industrial applications
Best For: Projects requiring integrated tooling, casting and precision machining
EMP Tech provides aluminum die casting together with in-house tooling and CNC machining. Its current manufacturing information highlights high-pressure die casting, 5-axis machining, DFM support and automotive quality control.
The company focuses particularly on complex, precision and leak-sensitive components for automotive and other engineered applications.
How to Choose an Aluminum Die Casting Manufacturer in China
The largest factory is not necessarily the best supplier for every project. The right choice depends on the part design, required volume, tolerances, quality requirements and secondary processes.
Die Casting Capability
Start with the basic casting requirements. Part dimensions, weight, wall thickness and geometry determine the type and size of die casting equipment required.
A supplier should evaluate whether its equipment and process are suitable for the component rather than simply confirming that it can produce aluminum die castings.
Tooling and Mold Development
The mold directly affects dimensional consistency, surface quality and production stability.
Ask whether tooling is designed and manufactured internally or outsourced, how mold-flow and manufacturability issues are evaluated, and how tooling changes are managed before mass production.
CNC Machining and Secondary Operations
Many die cast parts require machining after casting, particularly at bearing seats, threaded holes, sealing surfaces and assembly interfaces.
When possible, sourcing casting and machining from one manufacturing partner can simplify dimensional control and reduce coordination between multiple suppliers.
Quality Control
Quality requirements should be defined before quotation.
Depending on the application, buyers may need dimensional inspection, material verification, leak testing, X-ray inspection, CMM reports or other documentation.
The important question is not simply whether a supplier has inspection equipment, but whether its inspection process matches the requirements of your drawing and application.
Surface Finishing
Powder coating, painting, anodizing, plating, polishing and other finishes may be required after casting and machining.
Confirm the surface requirement during the quotation stage because finishing can affect material selection, dimensions, appearance and overall production cost.
Engineering Communication
For custom parts, effective technical communication is often as important as machine capacity.
A reliable supplier should review drawings, identify manufacturability issues and clarify unclear requirements before tooling and production begin.
Questions to Ask an Aluminum Die Casting Supplier Before Ordering
Before selecting a supplier, it is useful to confirm several practical points:
- What die casting machine sizes are available for my part?
- Can you manufacture the mold and provide DFM feedback?
- Which aluminum alloys do you regularly process?
- Can CNC machining be completed after casting?
- Which inspection reports can be provided?
- What surface finishing options are available?
- Can you work directly from 2D drawings and 3D models?
- How are tooling changes and engineering revisions handled?
- What information is required before an accurate quotation can be prepared?
These questions often provide more useful information than comparing unit price alone.
Frequently Asked Questions
What should I look for in an aluminum die casting manufacturer in China?
Look at the supplier’s casting equipment, tooling capability, machining capacity, quality-control system, experience with similar parts and ability to understand your drawings. Production volume and secondary processing requirements should also match the supplier’s normal manufacturing capabilities.
How do I verify a Chinese die casting supplier?
Review its factory information, manufacturing equipment, quality certifications and examples of relevant products. For important projects, a factory audit, sample order or third-party inspection can provide additional verification before mass production.
Can Chinese die casting manufacturers produce parts from drawings?
Yes. Many aluminum die casting manufacturers provide custom production based on customer drawings or 3D models. A complete RFQ should normally include material, dimensions, tolerances, annual quantity, surface requirements and any special inspection requirements.
What information should I provide for an aluminum die casting quotation?
A 2D drawing and 3D model are ideal. You should also provide the aluminum alloy, expected order quantity, surface treatment, machining requirements, critical tolerances and any testing or documentation requirements.
Should I choose the largest aluminum die casting company?
Not necessarily. Large manufacturers may be suitable for major automotive programs and very high production volumes, while a more flexible custom manufacturer can be a better fit for industrial parts, moderate volumes or projects requiring closer engineering communication.
Looking for a Custom Aluminum Die Casting Manufacturer in China?
If you already have a specific component to manufacture rather than simply comparing suppliers, Yongzhu Casting can review your drawings and production requirements.
We provide custom aluminum die casting together with mold development, CNC machining and secondary processing for parts used in automotive, machinery, energy equipment, lighting and other industrial applications.
Send us your 2D drawing, 3D model, material requirement and expected quantity, and our team can review the project before quotation.
