This product line focuses on the production of aluminum alloy engineering components used in high temperature, high corrosion or high structural load environments through integrated manufacturing of high pressure aluminum die casting and precision post-processing. Such components are commonly found in turbocharger housings, engine peripheral structural parts, battery trays and outdoor industrial equipment frames. The core requirement is that the base material and manufacturing process must work together to maintain dimensional stability and mechanical properties in the operating temperature range of 120°C to 250°C and when exposed to media such as coolant and salt spray.
As a made in China aluminum die casting supplier with deep expertise in precision manufacturing, JinYi Mold has implemented a process control system that complies with IATF 16949 standards throughout the entire process from alloy smelting to finished product delivery. We not only provide die casting blanks, but are also good at delivering OEM aluminum die casting parts that meet direct assembly requirements for customers through integrated CNC machining after die casting, especially focusing on meeting the stringent specifications of aluminum die casting for the automotive industry.
Mainly using aluminum alloys such as A380 (ADC12), AlSi9Cu3 (A380-F) and AlSi10Mg (A360). For parts with higher corrosion resistance requirements, use AlSi10Mg with low copper and low iron content or perform strontium (Sr) modification treatment to refine the eutectic silicon morphology and improve toughness. Before die casting, the melt is degassed and refined to control the hydrogen content below ≤1.5 ml/100g Al to reduce internal pores.
On equipment with a clamping force of 600-1200 tons, a process window with a filling speed of 40-100 m/s and a casting pressure of 70-120 MPa is adopted. Through local extrusion and vacuum-assisted technology, areas with wall thickness greater than 5 mm or complex structures (such as bearing seats) are fed to ensure that their density meets the subsequent T5 or T7 heat treatment requirements to stabilize dimensions and improve yield strength.
As a key CNC machining after die casting link, we use a five-axis machining center to position the process datum on the die casting to complete the processing of the end face, bearing holes, threads and sealing grooves in one go, ensuring that the positioning accuracy is within Φ0.05 mm.
The processing residual stress is simulated through finite element analysis (FEA), and the process route of "roughing-stress relief-finishing" is adopted to control the processing deformation caused by the release of internal stress in die casting within the range of ±0.1 mm/m.
Depending on the application environment, chromate conversion coating (Alodine), sulfuric acid anodizing (hard oxide film thickness up to 50 μm) or powder coating are provided. For aluminum die casting for engine compartment components in the automotive industry, thick film anodization is often used, and the oxide film can pass >1000 hours of neutral salt spray test after sealing.
We build a quality control system in compliance with the automotive industry PPAP (Production Part Approval Process) requirements.
Spectral analysis is performed on each batch of aluminum liquid to ensure that the alloy composition meets the standards. Key die-casting parameters (mold temperature, injection speed, pressure) are monitored and recorded in real time. The first piece and regularly inspected pieces are subjected to X-ray real-time imaging (X-Ray) to check internal shrinkage and pores.
100% of the critical dimensions of all OEM aluminum die casting parts pass three-coordinate (CMM) inspection. According to the drawing requirements, conduct air tightness test (leak detection), hardness test (HBW), metallographic analysis, and provide tensile test reports at room temperature and high temperature (such as 150°C) as needed.
Tests such as hot and cold cycles (-40°C to +120°C), salt spray corrosion, vibration fatigue and pressure pulse can be performed according to customer standards.
As a vertically integrated made in China aluminum die casting supplier, JinYi Mold supports full-process services from mold design and manufacturing, die casting, heat treatment, CNC machining, surface treatment to component assembly. We can quickly respond to engineering changes and iteration needs of aluminum die casting for automotive industry projects.
If your project involves aluminum alloy structural parts that require high reliability under harsh operating conditions and you are looking for a partner with the depth of high-pressure die-casting processes and precision machining closed-loop capabilities, we can provide proven Heat-resistant, Corrosion-proof Aluminum Parts solutions. Please provide part drawings and performance specifications, and our engineering team will conduct a manufacturing feasibility analysis and cost assessment.
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.
