For global OEMs and engineering firms seeking a reliable plastic mold manufacturer in China, navigating the balance between tight-tolerance precision and scalable cost-efficiency is a critical priority.
Established in 1997, CNMOULDING is an ISO 9001:2015 and ISO 13485 certified contract manufacturer based in Shanghai. We deliver full-service, turnkey engineering solutions—spanning from initial Design for Manufacturing (DFM) support to complete sub-assembly, retail packaging, and global logistics.
1. In-House Tooling Capabilities & High-Precision CNC Machining
We do not outsource our core tooling processes. To meet compressed lead times while maintaining volatile micron-level tolerances, our facility operates a fully integrated mold-making shop optimized for small-to-large molds (designed for injection presses up to 800 tons).
Our Tooling Infrastructure Includes:
- High-Speed CNC Machining Centers: Spindle speeds up to 30,000 RPM for flawless surface finishes and precise geometry definition.
- Precision CNC EDM & WEDM Centers: Capturing complex cavities and deep ribs with zero distortion.
- Advanced Metrology (CMM): Outfitted with reverse-scanning data capture to cross-verify physical tooling surfaces against original 3D CAD data.
Tooling Technical Specifications:
- Core & Cavity Steel: NAK80, 718, P20, H13, 2344, S136 (optimized for long-run productivity).
- Mold Base Standards: LKM, HASCO, DME interchangeability.
- Tooling Life Cycles: Engineered to achieve 200,000 to over 1,000,000 shots depending on production classification.
- Lead Time: 25 to 60 days from final DFM sign-off, secured via rigid in-house project milestones.

2. Advanced Molding Processes & Material Science Expertise
Executing precision injection molded parts requires strict environmental and process controls. We specialize in working with highly engineered resins (including unfilled, flame-retardant, and carbon/glass-fiber reinforced formulations like POM, PA66, PC, and PEEK). Our technical team enforces strict material drying, handling, and melt-temperature protocols to safeguard the mechanical properties of your components.
Specialized Molding Configurations:
- Insert Molding & Overmolding: Seamlessly encapsulating metallic threaded fasteners, hardware, or soft-touch elastomeric outer layers to create durable, multi-material parts.
- Two-Shot Molding (2K): Maximizing throughput and aesthetic appeal via automatic rotational core sequences.
- Thin-Walled & Tight-Tolerance Custom Work: Purpose-built configurations for complex consumer electronics housings, automotive dashboards, and banking equipment components.
3. Dedicated Medical & Industrial Contract Manufacturing
With an established track record in highly regulated industries, CNMOULDING serves the Medical-Diagnostic, Healthcare, Automotive, and Precision Electronic Connector markets.
Our clean-controlled production floors are optimized for critical medical components such as dynamic valves, syringes, and fluid diagnostic devices. By managing everything from high-volume automated molding to clean-room sub-assemblies under our ISO 13485 framework, we eliminate contamination risks and ensure complete regulatory compliance for the North American, European, and Australian markets.
4. Value-Added Secondary Operations
To optimize your total cost of ownership (TCO) and reduce downstream assembly friction, we provide comprehensive finishing services under one roof:
- Surface Aesthetics: In-Mold Decorating (IMD), In-Mold Labeling (IML), pad printing, and chrome plating.
- Mechanical Finishing: Secondary CNC machining, ultrasonic welding, and automated hardware insertion.
- Final Fulfillment: Complete component sub-assembly, customized retail packaging, and synchronized drop-shipping coordination.
Streamline Your Manufacturing Supply Chain Today
Partnering with CNMOULDING means securing transparent communication, engineering integrity, and data-driven results. We accept all major 3D CAD data types (including STEP, X_T, IGES, and native SolidWorks files) alongside detailed 2D PDF prints.
Contact our Shanghai engineering team within 24 hours for an expert DFM assessment and a comprehensive quote.






