
JinYi Mold focuses on providing customized plastic structural parts with high reliability and compliance with military environmental adaptability requirements such as MIL-STD-810 for individual soldier equipment, tactical communication equipment and field medical systems. The core challenge of such parts is to achieve lightweight while ensuring dimensional stability and functional integrity over a wide range of temperatures (-40°C to 85°C), high humidity, vibration and mechanical shock. Our unique engineering capability lies in migrating the clean production control, strict dimensional tolerance (such as ±0.1mm) and biocompatible material application experience accumulated in high-precision plastic test tube rack manufacture to the manufacturing of military parts with equally stringent reliability requirements.
Whether it is a military bracket used to fix precision instruments or a custom test tube rack used for field testing, the underlying requirements are absolute functional reliability and durable materials. Therefore, our engineering process starts with material science, selecting specific engineering plastics (such as PC/ABS, PA66-GF30, PEEK) for different application scenarios (such as outdoor weather resistance, chemical contact, electromagnetic shielding), and through mold flow analysis (Moldflow) and structural simulation, we optimize the design before mold investment to avoid potential failure risks.

For parts that are directly exposed to the outdoors, we use UV stabilizers to modify the materials and perform surface anti-scratch (Hard Coating) treatment. Drawing on the precision balance and micro-exhaust control of multiple cavities in the test tube rack injection mold, we ensure that complex features such as slender buckles and thin-walled ribs in military accessories can be filled evenly to avoid fractures caused by stress concentration.
Encapsulating metal thread inserts, conductive gaskets or RFID tags directly into plastic parts to improve assembly strength and functional integration.
Provides soft touch and higher sealing performance for the handle and sealing parts.
For products that require rapid change of specifications, such as plastic test tube racks, our molds adopt interchangeable insert designs that can quickly adapt to different size requirements. This flexibility is also applicable to the expansion of military accessories series.
We implement dual testing standards that combine industrial durability and medical precision.
Components must pass high and low temperature cycles, damp heat, salt spray and IP67 waterproof and dustproof tests.
Conduct tests such as free drop (such as falling from a height of 1.5 meters to a concrete surface), vibration fatigue, plug-in life (more than 10,000 cycles), etc.
For parts that may have long-term contact with skin or are used in medical integration scenarios, we provide cleanliness verification reports and optionally use ISO 10993 certified materials.

JinYi Mold provides complete manufacturing services from design collaboration, mold manufacturing, injection molding production to secondary processing (spraying, screen printing, assembly). Thanks to the efficient project management experience accumulated in test tube rack manufacture, we can flexibly support rapid trial production of hundreds of pieces to large-scale mass production of hundreds of thousands of pieces.
If your project involves high-reliability military plastic parts, or requires the integration of precision laboratory equipment (such as a customized test tube rack system) into a field or mobile platform, we can provide engineering support from material selection to volume production verification. Please provide your performance requirements and application environment, and we will conduct a feasibility analysis and provide a preliminary solution.

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.