Custom Plastic & Rubber Contract Manufacturing Services
From DFM analysis and tooling to production, assembly, packaging, and delivery, Jiangzhi provides complete contract manufacturing solutions for custom plastic and rubber parts.
- Full-Service Contract Manufacturing
- 30,000 sq ft Manufacturing Facility
- In-House Tooling & Mass Production
- Medium & High Volume Production
- Quality-Controlled from Start to Finish
Manufacturing a custom component involves far more than producing a part. Coordinating tooling, molding, machining, assembly, packaging, and logistics across multiple suppliers adds complexity, cost, and lead time.
As a contract manufacturing partner, Jiangzhi takes full responsibility for the entire process under one roof. Based on your drawings, specifications, or samples, we provide one reliable partner from start to final delivery. Leave manufacturing to us. You focus on your customers, your market, and your growth.
What We Manage as Your Contract Manufacturing Partner
Component Manufacturing
- Injection Molding
- Compression Molding
- Overmolding
- Insert Molding
- CNC Machining
- Casting Molding
Engineering & DFM Support
- 24-Hour Manual Quotation
- Design for Manufacturability (DFM)
- Material Selection & Modification
- Cost Reduction Suggestions
Tooling & Mold Management
- 3-axis, 4-axis & 5-axis CNC machining
- In-House Mold Fabrication
- Free Worn-Out Mold Replacement
Quality & Delivery
- In-process Dimensional Inspection & First Sample Confirmation
- QC Inspection Report Issued with Every Shipment
- Lot Traceability & Quality Documentation
- Worldwide Shipping with Reliable Lead Times
Secondary Operations & Assembly
- Surface Finishing: painting, electroplating, sandblasting, etc.
- Printing and Labeling: pad printing, silk screening, laser engraving
- Component Assembly & Integration
- Custom Retail and Export Packaging
Ready to Start Your Project
Ready to Start Your Project?
Share your drawings, samples, or requirements with us. Our engineering team will review your project and provide a fast DFM analysis and quotation.
Get a QuoteBenefits of Working with a Contract Manufacturing Partner
Simplify Supplier Management
Lower Total Costs
Faster Time to Market
Consistent Quality
Flexible Production Capacity
Why Choose Jiangzhi?
- Integrated manufacturing resources
- In-house tooling and production
- Stable quality management systems
- Flexible production capacity
- Competitive global supply solutions
- Dedicated engineering support
- Reliable delivery performance
Our Factory -- A Modern Manufacturing Workshop









Contract Manufacturing FAQs
No. We do not offer product design or development services. We focus entirely on contract manufacturing based on customer drawings, samples, or technical specifications.
Lead time depends on the mold type, part complexity, and order requirements. Generally, injection molds take around 30 days to complete, while other molds typically require around 20 days. Mass production is scheduled after sample approval.
We work with a wide range of engineering plastics and rubber materials based on application requirements, including materials suitable for industrial, automotive, and general engineering use.
Yes. We provide a range of secondary services, including product assembly, ultrasonic welding, drilling, tapping, surface finishing, logo printing, labeling, custom packaging, and retail-ready packaging to support complete product delivery requirements.
We serve a wide range of industries, including automotive, industrial equipment, electronics, consumer products, and other OEM sectors. Our experience across different applications allows us to support a variety of custom plastic and rubber component manufacturing requirements, with the ability to adapt to different design changes, production conditions, and project requirements during manufacturing.
