
We offer special solutions in engineering plastic injection molding that achieve the military standards of environmental adaptability, namely, MIL-STD-810G, for the shells of tactical equipment, carrying components, and field medical sets of the individual soldier. The key to these components is that, according to the demands of being lightweight and having high strength, they must also be able to provide integrity in functionality in high and low temperatures, humidity and heat, sand and dust, and mechanical shock conditions over the long term. We will bring over to the production of defense components the high level of ultra-cleanliness in production control, the microgram level of precipitate control, and the submillimeter level of molding technology that our company has accumulated in its role as an expert in the manufacturing of test tubes.
We were exposed to Plastic medical test tube molds for preserving sensitive chemicals, or military casings for protecting sensitive electronic devices. The logic behind such products is to guarantee complete safety for the internal materials under tough surroundings. Thus, “our engineering capabilities start with materials-structure-process co-design.” We can choose engineering plastics with certain characteristics, like “high-temperature resistant PEEK,” “high rigidity PA66-GF50,” or “low dielectric constant LCP,” and carry out mold flow simulation, structural analysis, and thermodynamic analysis to thoroughly validate the design before investing in molds to prevent possible failure in a combat zone.

The defense-related parts may also be subjected to various stresses. In this case, we integrate carefully the micro-venting and shear heat control of test tube plastic injection molds to prevent large thin-walled military shells from burning or under-filling when filling. In addition, to shield electronic modules, we employ metal fibers inserted into plastics and/or conductive surface layers. In all manufacturing, clean workshops with defined environmental factors determined from requirements for test tube plastic molds are used to avoid damaging the parts.
The design of our mold is based on precision, longer durability, and ease of maintenance.
The experience with designing 64-cavity, or even 128-cavity, ultra-high-efficiency molds, generated using the test tube mold, can be directly applied to the production of military standard parts to achieve extremely high consistency for the production lots.
The mold material is high-quality steel that is wear-resistant and corrosion-resistant (for example, S136, H13 steel), and the mold cavity surface receives hard chrome plating treatment or PVD coating, which can resist wear from glass fiber reinforced materials, and the mold life can be over one million times.
The mold can combine the hot runner system, the sequential valve control system (SVG), and the conformal cooling channels to eliminate welding lines, warpage, and reduce the molding cycles.

In our company, we apply the standards that include both military specifications for reliability as well as cleanliness for medical devices.
Other environmental factors the components must resist include temperature shock from -55°C to 85°C, compound vibration, salt spray corrosion, and both sand and dust resistance.
Perform drop weight impact tests, three-axis vibration fatigue tests, and creep tests on parts requiring seals. Also, do helium mass spectrometry leak tests.
Supply performance datasheets for items including flame-resistant materials (UL94 V-0 rating), thermal conductivity, dielectric constant, and more.
Perform chemical resistance tests on components that could potentially expose the plastic to oil and cleansers. test tube plastic injection mold Delivery and Service JinYi Mold can completely handle tasks such as conceptual design, material selection, mold design, product production through injection molds, and spraying, printing, and assembly.Based on our effective quick mold change-over process and statistical process control (SPC) in plastic products like Medical test tubes molds, we can ensure efficient support in all processes, beginning with verification and extending to stable production.
If your project is related to high-reliability military plastic components or involves laboratory-level precision and cleanliness conditions that need to be applied to special environment equipment, we can help with solutions in the areas of feasibility studies, research, and large-scale production. Please share your performance indicators and conditions, and our engineers will perform a detailed evaluation.

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.