
JinYi Mould provides precision injection molding solutions based on high-performance polymers such as PEEK, PEI, and PPSU for aerospace, individual soldier equipment, and field life support systems. The critical nature of these components is identified by functionality in extreme physical environments, including impacts, stringent biosafety environments, and custom medical plastic oxygen generator assemblies that come into direct contact with breathing gases. Our core competency is the seamless migration of the ISO 13485 quality management system, biocompatibility validation, and cleanroom production standards for medical device plastic injection molding into manufacturing military components to MIL-SPEC requirements and delivering high reliability throughout the chain, right from material certification to process traceability.
We understand the consequences of failure in military housings protecting delicate electronic components or oxygen concentrator channels ensuring patient safety-are catastrophic. Our engineering philosophy thus goes like this: prevention is the best medicine. By computational fluid dynamics simulation of airflow, FEA validation of structure, and synergistic optimization through mold flow and cooling analysis, we ensure that the design will be able to withstand the most severe operating conditions before mold fabrication.

Manufactured from a carbon fiber-reinforced polyetheretherketone (CF-PEEK) with a continuous use temperature of over 250°C, strength equal to that of aluminum alloys, and very low outgassing and moisture absorption.
The plastic oxygen generator accessory moulds' internal gears, valves and other moving parts are made of polyoxymethylene or lubricated-modified polyamide with an excellent abrasion resistance.
All components which come into contact with gas or patients are manufactured from medical-grade PPSU or PEI materials, USP Class VI, or ISO 10993 compliant, for long-term chemical stability and biological safety.
In the process of oxygen generator mold development, we had ensured a one-off injection molding precision for the gas channel with a less-than-0.6mm diameter, so as to ensure the accuracy of flow. Meanwhile, this technology could also be applied to military microfluidic cooling modules.
With multi-component injection molding, the silicone sealing ring is integrated with the plastic shell, and an IP68 protection rating is achieved. Insert injection molding encapsulates the metal sensor or conduction component in an embedded manner, and there will not be any loosening.
The mold will be fitted with a multi-point independent closed-loop temperature control system to ensure that, during molding, highly crystalline materials such as PEEK have stable crystallinity, which is an assurance of batch consistency both in the dimensions and mechanical properties of the components.
The components shall be able to withstand the triaxial random vibration, mechanical shock, high and low temperature cycling from -54°C to 85°C, and the sand/dust/IP6X waterproof tests according to the MIL-STD-810 standard.
The long-term test for gas compatibility is performed to determine the aging of the material and performance degradation.
Manufactured in an ISO Class 7 cleanroom; particulate contamination level test reports are provided.
Core components fabricated through injection molds are tested against burst pressures more than 4 times and more than 100,000 life cycles.
JinYi Mould provides a one-stop ODM/OEM service, including material selection and certification, co-design of products and molds, mold manufacturing, clean injection molding production, to component assembly. With 80-1000 ton all-electric injection molding machines, we can manufacture a wide range of products, from micro-precision gears to large equipment housing, which enables fast and smooth transition from prototype verification to mass production. Whether it is the use of hostile environments or the translation of medical-grade reliability and safety into defense equipment, we can still give a total solution based on materials science, precision engineering, and compliance certification. Please provide performance specifications and application scenarios; our engineering team will conduct a deep feasibility analysis.

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.