This product line focuses on providing high-performance engineering plastic components as structural supports, integrated modules and lightweight casings for modern individual protection systems, military vehicles and communication equipment. These components are not directly used to intercept warheads, but serve as reliable bearing platforms for core protection units such as ceramic armor plates and ballistic plates. The core engineering challenge is that while meeting the dimensional stability in extreme environments (-40°C to 70°C temperature cycles, high humidity, sand and dust), it must have high specific strength, excellent resistance to impact and vibration fatigue, and be able to perform solid and precise mechanical integration with the protection system.
JinYi Mold applies engineering concepts serving precision equipment manufacturing to this field. We provide not only injection molding, but also full-process solutions from material selection and verification, mold design based on bulletproof system integration requirements, to mass production control that meets military-standard reliability requirements. We are well aware of the differentiated requirements for load-bearing structural components of different protection level systems such as level III armor plates and level 4 steel armor plates, and can optimize the design accordingly.
In view of the high wear of glass fiber reinforced materials, the core mold uses pre-hardened high-quality mold steel (such as H13, hardness HRC 48-52) or maraging steel. The mold design life target is ≥500,000 molds to ensure the stability of key matching dimensions (such as buckles and guide rails connected to ceramic armor plates) under long-term production.
Use mold flow analysis (CAE) to optimize the cooling system, especially for frame components carrying ballistic plates, which have large wall thickness differences. It is necessary to control the mold temperature difference within ±5°C through conformal cooling water channels to reduce the molding warpage rate to less than 0.15% to ensure flatness and assembly accuracy.
Mainly using glass fiber reinforced nylon (PA66+GF30, tensile strength >150 MPa), polycarbonate/ABS alloy (PC/ABS, high impact toughness) and ultra-high molecular weight polyethylene (UHMWPE), etc. For example, components used for the back plates of level III armor plates can be made of carbon fiber reinforced composite materials with low density and high specific strength to achieve weight reduction at the same strength.
The material formula needs to pass ultraviolet aging (QUV), salt spray corrosion and mechanical property testing in a wide temperature range (-40°C to 125°C) to ensure that its mechanical property attenuation rate does not exceed 15% in a field environment.
Establish a robust process window through Scientific Molding. For example, for parts with deep cavity structures, variable mold temperature technology combined with segmented injection control is used to eliminate weld lines and improve local density.
Provide CNC precision machining (guaranteed installation hole tolerance ±0.05mm), ultrasonic welding, and anti-electromagnetic interference (EMI) metal sputtering or conductive coating treatment to ensure reliable integration of plastic parts with electronic equipment or metal armor plates.
Our quality control system goes beyond conventional commercial standards and focuses on the functional reliability of components in protective systems.
In addition to conventional dimensional inspection (using CMM), components need to undergo drop weight impact testing (according to ASTM D7136), vibration fatigue testing (simulating vehicle environment) and dimensional stability verification after high and low temperature cycles.
For components that directly match level 3 armor plates or ceramic armor plates, conduct actual installation compatibility tests, including repeated plugging and unplugging life tests (usually requiring >500 times without damage) and structural integrity assessment under simulated impact loads.
From resin particle batches to molding process parameters, full-process data recording and traceability are achieved to support customers’ quality audit requirements.
JinYi Mold supports flexible needs from rapid prototyping (via 3D printing or soft mold trial production) to small and medium-volume mass production. During the prototype stage, we can cooperate with customers in design iteration and implementation testing to ensure that the final mass production solution can perfectly match their ballistic plate system.
If your protective equipment project requires high-reliability lightweight structural parts or integrated housings, we can provide professional engineering and manufacturing support with Military-grade Plastic Parts. Please provide your performance requirements and integration interface information, and we will initiate a 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.
