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ISO 9001:2015 Certified Manufacturer

Precision Plastic
Manufacturing Since 2000

Custom injection molding, blow molding, and precision plastic manufacturing — backed by in-house mold design and tooling. A trusted Chinese manufacturer delivering quality plastics to North America, EU, Australia, New Zealand, and Japan for over 25 years.

About Jiashan Jinxin Plastic Products

Your Trusted ISO 9001 Certified Plastic Manufacturing Partner in China Since 2000

Our expertise is built on a legacy of precision that began in 1985. Starting with a foundational focus on mold development and machining, we established Shanghai Jinding Plastic Products Co., Ltd. in 2000, and later expanded our operations to become Jiashan Jinxin Plastic Products Co., Ltd.

Today, plastic manufacturing is at the heart of everything we do. As a vertically integrated manufacturer, we combine high-capacity injection and blow molding with decades of in-house mold-making expertise — the foundation of a true one-stop solution. From initial product development support and mold design to optimized injection molding and efficient mass production, we provide end-to-end quality control that ensures your vision is transformed into a reliable, high-precision plastic solution.

Our commitment to excellence is proven by our performance. Operating from a 3,000 m² facility and guided by an experienced engineering team and ISO 9001:2015 certified quality management, we proudly serve 30+ customers across 8 countries. Our portfolio includes leading European sanitary ware brands—a testament to the consistent quality and dependable supply we deliver.

Decades of plastics manufacturing expertise. One true one-stop partner.
40+ Years of Expertise
30+ Global Clients
8 Countries Exported
ISO 9001:2015 Certified

Our Services

OEM & ODM plastic manufacturing — from your drawing to delivery

Custom Injection Molding

15 machines from 60T to 700T handle everything from small precision parts to large structural components. Materials include PE, PP, PC, PA, POM, PET, ABS, TPE, and engineered resins such as PEEK and PPSU. Biodegradable PLA also available. Our process ensures consistent quality, tight tolerances, and fast cycle times for production runs of any scale.

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In-House Mold Design & Tooling

Fully equipped in-house tooling workshop with 3 CNC machining centers, 4 EDM units, 2 milling machines, and 2 grinding machines. Our engineering team conducts collaborative DFM analysis from day one, ensuring every tool is optimized for manufacturability, durability, and cost-efficient production. Rapid prototyping and soft-tool trials are available to de-risk your project before mass production.

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Blow Molding

We operate dedicated blow molding lines for hollow plastic components used in automotive, bathroom, and industrial applications – including air ducts, fluid reservoirs, sanitary ware parts, and technical housings. With in-house tooling support and process expertise, we deliver consistent wall thickness, excellent surface finish, and reliable part performance that meets the rigorous demands of these industries.

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Post-Processing & QA

Ultrasonic welding, silk-screen / pad printing, laser marking, assembly, and custom packaging – all completed in-house. Backed by ISO 9001:2015 certified quality systems with full traceability from raw material to finished goods. Every part is inspected to meet your exact specifications.

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Our Showcase

Explore our manufacturing capabilities and product portfolio

Black injection-molded bracket
Blue plastic valve fitting
Chrome-plated metal components
Faucet handles in chrome and matte black
White plastic plumbing fitting
Trim rings in chrome and matte black
Plastic fitting with brass insert
Black molded plastic housing
Teal plastic threaded cap
Factory overview
Factory Overview
In-process quality inspection
In-Process Quality Inspection
Tooling workshop
In-House Tooling Workshop
CNC machining
CNC Machining
EDM and precision equipment
EDM & Precision Equipment
Mold tooling
Mold Tooling
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Our Process

From concept to delivery, precision at every step

1

Design & Engineering

Collaborative DFM analysis and Moldflow simulation using our in-house CAD/CAM systems. Every tool is engineered for manufacturability, durability, and optimal cycle time before steel is cut.

2

Precision Manufacturing

Automated injection molding across 15 machines (60T–700T) with real-time process monitoring and SPC controls. Our blow molding lines run in parallel for hollow-part projects. Every production batch is tracked, monitored, and adjusted in real time to ensure dimensional accuracy, material integrity, and on-time delivery.

3

Global Delivery

Streamlined logistics and export documentation for seamless delivery to Europe, North America, and Asia. Eight countries served and counting.

Why Choose Us

Built on trust, driven by precision

Advanced Equipment

15 injection machines (60T–700T), plus 3 CNC machining centers, 4 EDM units, 2 milling machines, and 2 grinding machines – all maintained in-house for maximum uptime and quality control. This comprehensive equipment base allows us to handle complex projects from tooling to finished parts under one roof.

ISO 9001:2015 Certified

Certified by CCAC (Certificate No. 36925Q10005R0S) since May 2025. Rigorous quality systems cover every stage from incoming raw material inspection to final pre-shipment verification.

Full-Service Partner

Mold design, injection molding, blow molding, ultrasonic welding, printing, laser marking, assembly, and packaging — every step under one roof, giving you a single point of accountability.

Export-Ready Partner

Serving 30+ clients across 8 countries with an English-speaking engineering team. Flexible FOB terms via Shanghai and Ningbo ports, with complete export documentation support.

Client Testimonials

Trusted by industry leaders worldwide

"Jinxin delivered our mold two weeks ahead of schedule with excellent surface finish. Their DFM input saved us from a costly revision. A reliable partner for European markets."

European Bathroom OEM

Procurement Director

"Their engineering team spotted undercuts we had overlooked during design review. The first-shot samples were dimensionally spot-on. Quality and communication have been consistently strong."

Automotive Tier-1 Supplier

Engineering Manager

"We have sourced bathroom fittings and accessories from Jinxin for over five years. Every batch meets our surface-finish and tolerance requirements, and delivery has been on time without exception."

European Sanitary Ware Brand

Quality Assurance Lead

Frequently Asked Questions

Everything you need to know about working with us

We accommodate orders from 1,000 units for standard injection-molded parts. For blow-molded products, and complex custom molds, please contact us for a tailored quotation.

Prototype molds: 2–4 weeks. Production molds: 6–10 weeks. First-article samples: 1–2 weeks after mold trial. Mass-production lead time depends on volume, material availability, and current shop loading.

Standard: PE, PP, PC, PA, POM, PET, ABS, TPE. Engineering plastics: PEEK, PPSU. Biodegradable: PLA. Custom color-matched and glass-filled resins available upon request.

Yes. We offer 3D-printed prototypes for form-and-fit validation, followed by soft-tool (aluminium) trials before committing to hardened steel production molds. This reduces risk and shortens time-to-market.

Automotive parts, bathroom and sanitary ware, office equipment, consumer electronics, and industrial components. Notable clients include leading European sanitary ware brands and automotive suppliers.

Absolutely — we welcome factory visits and third-party audits. Our facility in Jiashan, Zhejiang is within easy reach of Shanghai and Hangzhou. Contact us to arrange your visit — we look forward to showing you around.

Contact Us

Ready to start your next project? Let's talk.

Get in Touch

AddressJiashan Jinxin Plastic Products Co., Ltd.
West Side, 3rd Floor, No.1 Workshop
No.255 Xinhui Road, Weitang Sub-district
Jiashan County, Jiaxing City, Zhejiang, China 314116
Phone+86 133 8625 9978
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Business HoursMon – Fri: 9:00 AM – 6:00 PM (GMT+8)
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