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

Our services extend beyond molding. We manage every stage of your manufacturing project. With over 40 years of manufacturing experience, Jiangzhi combines multiple production technologies to deliver complete component solutions. Rather than offering a single process, we integrate these technologies to manufacture complete products efficiently and consistently.

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?

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 Quote

Benefits of Working with a Contract Manufacturing Partner

Partnering with a contract manufacturing partner helps simplify sourcing, reduce operational complexity, and improve production efficiency. Instead of coordinating multiple suppliers, you work with one team that manages your manufacturing program from tooling to delivery.

Why Choose Jiangzhi?

Choosing Jiangzhi means choosing a manufacturing partner rather than simply a parts supplier. Our goal is to become an extension of your manufacturing team and support your products throughout their entire production lifecycle. We provide:
  • 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
Injection Molding Workshop

Our Factory -- A Modern Manufacturing Workshop

We operate a 30,000 m² modern facility where our teams handle every step of production—from precision machining and molding to assembly—using advanced CNC machines, molding presses, and automated lines to deliver efficient, precise, and reliable results.

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.

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