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Engineered to meet strict American manufacturing standards, these custom tooling and molding solutions deliver unmatched precision and durability.
High-precision liquid silicone rubber (LSR) tooling designed for FDA-compliant medical device components and surgical instruments.
Engineered for lightweight structural parts, interior trims, and under-hood components matching US automotive tier-1 specifications.
Extreme-tolerance mold design for advanced avionics enclosures, engineering plastics, and complex structural components.
Optimized for high-aesthetic finishes, durability, and rapid assembly integration for the modern US smart home market.
Precision Engineering Meets Global Manufacturing Excellence
Founded in the heart of China’s manufacturing growth triangle in Yuyao, Zhejiang Province, Ningbo Jinlong Electric Appliance Co., Ltd. is a premier high-tech enterprise specializing in two core industrial pillars: Professional Mold Manufacturing and Advanced Home Appliance R&D. Our commitment is to bridge advanced offshore manufacturing efficiency with the strict quality and performance demands of the United States industrial sectors.
Spanning a massive 68,000-square-meter modernized facility with $16 million USD in fixed assets, we are strategically positioned near the Ningbo Port and International Airport, ensuring seamless global logistics, reduced transit times, and robust supply chain efficiency for our partners across the USA.
Analyzing current industrial demands, technological shifts, and localized application scenarios across the United States.
The demand for high-quality silicone and plastic injection moulds in the United States has experienced a significant paradigm shift. As American industries prioritize rapid product development cycles, biocompatibility, and advanced materials engineering, the reliance on highly competent tooling partners has never been greater. From medical device manufacturing hubs in Minnesota and Massachusetts to automotive innovation centers in Michigan and Ohio, precision-engineered moulds form the backbone of modern US industrial output.
In the US market, Liquid Silicone Rubber (LSR) is rapidly replacing traditional elastomers due to its thermal stability, chemical resistance, and outstanding biocompatibility. American medical OEMs and consumer electronics companies are pushing the boundaries of design by utilizing multi-shot injection molding (combining thermoplastic and silicone in a single process). This reduces assembly costs, eliminates leak paths, and enhances product durability. As a leading manufacturer, we provide the specialized high-tolerance tooling required to execute these complex processes flawlessly.
While many US companies seek to localize assembly, the high cost of domestic tool-making makes offshore precision mold manufacturing highly attractive. By partnering with Ningbo Jinlong, US enterprises leverage state-of-the-art Swiss and Japanese machining technologies at highly competitive price points, ensuring optimal ROI without compromising on tool longevity or part tolerances.
Delivering specialized engineering and manufacturing excellence across two distinct divisions.
Our tool-room is the foundation of our quality. With a dedicated 5,000-square-meter precision workshop, we combine Swiss, Japanese, and American technology to deliver export-quality tooling for the world's most demanding industries.
As a global leader in vacuum cleaner and sanitization technology, we operate 18 automated assembly lines with a robust annual capacity of 4 million units. Our R&D team doesn't just follow trends—we set them. We hold global invention patents for unique technologies, such as our integrated vacuum and air purification systems that enhance the user experience through scent-diffusion and filtration.
We combine state-of-the-art facilities, certified quality standards, and decades of engineering experience to deliver superior value.
Backed by a 30+ member R&D team and an annual investment exceeding $1.5 million USD, we secure new technological breakthroughs and patents every year.
Our 60+ member Quality Assurance team manages an internal testing facility capable of ROHS environmental measurement. We are fully compliant with ISO 9001, ISO 14001, ISO 45001, and IATF 16949.
Our products meet the strictest international standards, including GS, CE, UL, CCC, ROHS, and WEEE, ensuring smooth market entry for our clients.
From initial mold design and trial to mass injection molding and final assembly, we provide a "one-stop" manufacturing service that reduces lead times and costs.
Internal production of core products, high efficiency, with 100% facilities and equipment.
ISO: 1998, TS: 2009. Ensuring rigorous Quality Control throughout production.
Efficient project management and follow-up, backed by strong mold-making capacity.
Established in 1985, our tool workshop has 30 years of experience in mold making.
More than 10 high-speed CNC machines (42k rpm CNC), Charmilles EDM, and wire cutting.
More than 30 engineers utilizing Pro/UG, CAD, CATIA, and mold flow analysis software.
When exporting mold tooling to the United States, compliance with local standards is critical. The Society of the Plastics Industry (SPI) classifies injection molds into five distinct classes, ranging from Class 101 (designed for over 1 million cycles, high-volume production) to Class 105 (prototype molds for less than 500 cycles). Ningbo Jinlong specializes in Class 101 and Class 102 tooling, utilizing premium tool steels such as H13, S136, and NAK80 to withstand the demanding production environments of our American clients.
Designing molds for silicone requires a completely different approach compared to traditional thermoplastic molds. Since LSR is fed into the mold at a cold temperature and cured under high heat, thermal isolation between the cold runner system and the heated mold cavities is paramount. Our engineering team utilizes advanced finite element analysis (FEA) and mold flow simulations to optimize gate placement, venting, and heating cartridge locations. This prevents premature curing, reduces flash, and ensures a clean release of complex silicone parts.
We understand that our US customers operate in highly regulated environments. Whether it is compliance with the FDA (Food and Drug Administration) for food-contact silicone components, NSF standards for drinking water applications, or UL 94 flame-retardant ratings for electrical enclosures, we ensure all raw materials and manufacturing processes align with these strict specifications. Our raw material traceability program guarantees that every batch of resin or silicone elastomer used in our facility is certified and documented, giving our US partners peace of mind during regulatory audits.
With our close proximity to Ningbo Port—one of the busiest and most efficient shipping hubs in the world—we offer optimized logistics packages to the US East Coast and West Coast. Whether shipping via ocean freight to the Port of Los Angeles/Long Beach for rapid distribution across the western states, or routing through the Panama Canal to the Port of New York/New Jersey for eastern markets, we coordinate seamlessly with international freight forwarders to minimize customs delays and ensure DDP/CIF deliveries are executed on schedule.
Explore our diverse range of custom silicone, plastic, and multi-material molding capabilities.
High-insulation plastic injection moulds tailored for electric vehicle charging infrastructure and battery pack connections.
Ultra-precise liquid silicone rubber injection moulds for fluid control valves, diaphragms, and drug delivery systems.
Custom tooling engineered for high-temperature silicone seals and lightweight cabin ducting components.
Multi-cavity high-volume plastic injection moulds designed for modern smart home control interfaces.
Moulding solutions optimized for recycled and bio-based plastics, meeting US sustainability demands.
Extremely tight-tolerance plastic gear tooling for robotics, actuators, and precision machinery.
FDA-compliant silicone baking moulds, kitchen utensils, and food storage sealing components.
Heavy-duty structural plastic injection components and assembly integration for commercial floor care equipment.