
This product line focuses on producing customized aluminum alloy parts with high complexity, high structural strength and high heat dissipation requirements through high-pressure die-casting processes, which are widely used in automotive power systems, industrial equipment and high-end electronics. The complex requirements such as lightweight, high strength, high thermal conductivity and precision assembly faced by such parts pose extremely high challenges to the complete process chain from mold design to post-processing. As a senior automotive aluminum die casting mold maker, JinYi Mold applies the strict standards and engineering experience of automotive powertrains (such as transmission case die cast parts) to a wider range of precision mechanical parts manufacturing, providing a one-stop solution from mold development to finished product delivery.
We learned about a successful die casting mold. It is based on the deep experience accumulated in the field of die-cast parts for the automotive industry. Our engineering team is good at handling the mold design of large, thin-walled, and highly difficult-to-fill parts. With the help of mold flow analysis to optimize the pouring system and cooling layout, we strive to ensure the density, dimensional stability and production yield of castings from the source, providing a stable foundation for subsequent precision processing.

We use high-quality hot-work mold steel (such as H13) to make molds, and use advanced processes such as vacuum die-casting or partial extrusion to reduce the probability of pores inside the casting and improve mechanical performance. For high-efficiency aluminum heat sink case products, the mold design will focus on optimizing the filling and cooling of the heat dissipation teeth to ensure geometric integrity and thermal conductivity efficiency.
As a professional CNC machined heatsink housing maker, we have many five-axis machining centers. The die-cast blank is fully CNC precision machined to ensure the accuracy of key mounting surfaces, hole positions and sealing surfaces, with tolerances up to ±0.01mm. We are proficient in handling complex cooling fin arrays, deep cavities and special-shaped surfaces to accurately achieve design concepts.
We will provide a variety of surface treatment solutions such as sandblasting, anodizing (can be colored), conductive oxidation, powder coating and laser marking according to the application scenario. This not only improves corrosion resistance and aesthetics, but the anodizing process can further improve the surface hardness and heat dissipation performance of the radiator shell.

We implement the following steps for full-process quality control from materials to finished products.
Use aluminum alloy ingots that meet international standards (such as A380, ADC12, AlSi9Cu3, etc.), and perform spectral analysis on each batch of melt. Key parameters of the die-casting process (temperature, pressure, speed) are monitored and recorded in real time.
100% of finished products pass critical dimension inspection. Based on customer requirements, we can perform X-ray flaw detection (inspection of internal defects), air tightness testing, mechanical property testing (tensile, hardness) and thermal conductivity testing.
We can provide complete PPAP (Production Part Approval Process) document packages for automotive and other high-end industrial customers, and ensure full traceability from raw materials to finished products.

We are able to support all stages of demand from prototypes (which can be provided through 3D printing or rapid tooling) to large-scale mass production. With our project management and supply chain capabilities honed as a die casting parts factory for the automotive industry, we ensure reliability and timeliness of delivery.
If you are looking for a partner that combines automotive-grade rigor and flexible customization capabilities in the field of high-strength aluminum alloy die-casting for manufacturing gearbox casings, motor casings, communication cooling modules or other key structural parts, JinYi Mold will be your first choice. Welcome to contact us to get professional technical solutions for your project.

Jinyi Mold was established in 1998 and is headquartered in Dongguan, Guangdong. Our professional team provides injection mold and die-casting mold services, providing you support in every aspect from design, manufacturing to final assembly.

dozens of CNC machining centers (gantry & 5-axis), injection molding machines (80-1600 tons), EDM machines, automation equipment, etc.
Establish solid partnerships with Europe, Australia and Asia to carry out international export business.
Company production capacity: A 13,000㎡ production base in Maoming (built in 2022), backing an annual turnover surpassing 150 million RMB.
Possess High-Tech Enterprise Certification, ISO9001:2015 Quality management system certification.

Logistics follows international transportation standards, and packaging is packed in reinforced wooden boxes, filled with PE foam and wrapped in moisture-proof bags.

Marketing: Selina Chan
WhatsApp:+8618969686504
Email:selina@jy-mould.com
Contact us to discuss how we can support your project needs
Please know that when you choose Jinyi Mold, we are not only a supplier, but also a Chinese manufacturing partner with 25 years of experience in mold design, manufacturing, and assembly.
We specialize in providing high-precision mold manufacturing and injection molding solutions for industries including automotive, home appliances, consumer electronics, medical devices, and industrial equipment.
Quality is controlled through a comprehensive system, including mold flow analysis, strict material certification, in-process inspections, and final product testing. We also provide complete documentation such as steel certificates, hardness reports, and dimensional inspection reports.
For mold making, the lead time is typically 4–6 weeks after design approval. For mass production of plastic parts, it usually takes 2–3 weeks depending on part complexity and order quantity.
Yes, our engineering team provides full support from DFM (Design for Manufacturability) analysis to mold design optimization, helping customers accelerate product development and reduce production risks.
Our standard terms are 50% deposit upon order confirmation and 50% balance payment before shipment. Flexible payment arrangements can be discussed based on project scope and cooperation level.
Absolutely. In addition to mass production, we offer low-volume manufacturing, rapid prototyping via 3D printing and silicone molding, ensuring customers can quickly validate designs before full-scale production.
We accept a wide range of file formats including STEP, IGES, DWG, and PDF for mold design, DFM analysis, and quotation preparation.
Yes, we provide mold maintenance instructions with each shipment. If any issues occur, our technical team offers remote support or on-site service depending on the situation.
Yes, we have extensive experience in multi-cavity, family molds, and complex molds that require interchangeable inserts, ensuring cost-effective and efficient production for customers.
We are familiar with a wide range of thermoplastics including ABS, PC, PA, POM, PP, TPE, TPU, and high-performance engineering plastics based on customer requirements.
Yes. We are experienced in manufacturing molds compliant with international standards such as HASCO, DME, and MISUMI, ensuring smooth integration with overseas production lines.
We take IP protection seriously. We are willing to sign NDAs (Non-Disclosure Agreements) and have strict internal controls to ensure all customer designs and projects remain confidential.