CN Precision - Professional Injection Molding & Mold Manufacturing
Injection Mold Making & Tooling Solutions - CN Precision

Precision Injection Mold Making & Tooling Solutions for High-Volume Production

Your Tier 2/3 manufacturing partner delivering production-ready molds with complex geometries, tight tolerances (±0.005mm), and optimized designs that minimize your Total Cost of Ownership. Engineering excellence meets manufacturing precision.

Comprehensive Tooling Capabilities to Meet Your Exact Needs

From high-cavitation molds to multi-material solutions, we deliver the technical precision and manufacturing excellence your production demands. Every capability is engineered for reliability, efficiency, and long-term performance.

High-Cavitation Molds

Maximize your production output with precision-engineered molds up to 128 cavities. Advanced cooling systems ensure uniform cycle times and consistent part quality across every cavity, dramatically reducing your per-part cost.

2K/Multi-Shot Molds

Create complex, multi-material functional parts in a single molding cycle. Our expertise in 2K/overmolding technology eliminates secondary assembly operations, reducing labor costs while improving part integrity and aesthetic quality.

Insert & Overmolding

Achieve precise metal-to-plastic or plastic-to-plastic bonding with our specialized insert molding technology. Perfect for electrical connectors, medical devices, and automotive components requiring superior mechanical strength and electrical insulation.

Stack Molds

Double your production capacity without increasing press size. Stack mold technology delivers exceptional ROI for high-volume manufacturing, cutting your energy costs per part while maintaining precision tolerances across both mold levels.

Technical Materials

Specialized expertise in processing demanding engineering resins including PEEK, PPS, LCP, and glass-filled materials. Our advanced mold design and temperature control systems ensure optimal material performance and dimensional stability.

Ready to discuss your specific tooling requirements?

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Industry-Specific Precision

Deep industry expertise translates to molds that understand your unique requirements. We speak your technical language and deliver solutions engineered for your specific regulatory, performance, and quality standards.

Automotive precision injection molding parts
Automotive

IATF 16949 Certified Excellence

Engineering molds that meet automotive industry's demanding standards for structural integrity, durability, and consistent quality. Our deep understanding of PPAP requirements and automotive testing protocols ensures first-time approval success.

  • Full PPAP documentation and submission support
  • Molds engineered for 1M+ shot life cycles
  • Material expertise: PA, PP-GF, ABS, PC/ABS blends
  • Rapid prototyping to high-volume production
Medical device injection molding clean room
Medical

Clean-Room Precision

Delivering validation-ready tooling for medical devices with ISO 13485 quality systems. Our expertise in biocompatible materials and clean-room molding ensures your devices meet stringent regulatory requirements from FDA, CE, and beyond.

  • ISO Class 8 clean-room production capability
  • Biocompatible materials: PEEK, PPSU, PC, medical-grade PP
  • Complete validation documentation packages
  • Micro-tolerance capability down to ±0.005mm
Electronics precision plastic components
Electronics

Micro-Precision Engineering

Master the complex challenges of consumer electronics molding: ultra-thin walls, high-gloss finishes, and microscopic tolerances. Our advanced mold flow analysis and precision machining capabilities deliver the aesthetic perfection and technical precision your products demand.

  • Thin-wall molding expertise (0.5mm - 1.2mm)
  • Mirror-finish polishing to Ra 0.01μm
  • Tight dimensional control for perfect assembly
  • Materials: PC, PMMA, ABS, modified engineering resins

Does your industry require specialized tooling expertise?

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Industry Reality Check

Why 40% of Injection Mold Projects Fail During Mass Production

The allure of low-cost tooling often leads to expensive production nightmares. Understanding these critical failure points protects your investment and ensures your production timeline stays on track.

Unstable Cycle Times

Poorly designed cooling channels create temperature inconsistencies, leading to unpredictable cycle times. What was quoted as 30-second cycles becomes 45+ seconds in production, destroying your cost calculations and delivery commitments.

Flash & Dimension Drift

Inferior steel quality and improper heat treatment cause premature wear and dimensional instability. Parts that fit perfectly in T1 samples gradually drift out of tolerance, creating assembly nightmares and quality rejections after just 50,000 shots.

Communication Gaps

Critical technical details lost in translation between engineering and production teams. Design intent gets compromised, ECR processes stall for weeks, and your launch timeline spirals out of control due to preventable misunderstandings.

Hidden Maintenance Costs

Non-standard components and proprietary designs make routine maintenance a logistical nightmare. What should be simple pin replacements become extended downtime waiting for custom parts from overseas, bleeding thousands in lost production daily.

Avoid these costly production failures with properly engineered tooling

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Our Approach

We Build Molds for Production, Not Just for "T1 Approval"

Sample approval is just the beginning. We engineer molds as long-term production assets, rigorously tested against real-world manufacturing stress. This production-first philosophy ensures your tooling performs reliably throughout its entire lifecycle.

1

Asset vs. Tool Philosophy

We design every mold as a 10-year production asset, not a disposable tool. This means superior steel selection, robust cooling architecture, and maintainability built into every design decision.

  • Premium H13/S136 hardened steel cores
  • Engineered for 1M+ shot longevity
  • Full lifecycle cost optimization
  • Designed for easy maintenance and refurbishment
2

Predictive Engineering

Advanced mold flow simulation and stress analysis predict and prevent production issues before a single steel block is machined. We simulate mass production conditions during design phase, not after problems emerge.

  • Comprehensive filling and packing analysis
  • Warpage prediction and gate optimization
  • Cooling efficiency thermal mapping
  • Stress concentration identification and mitigation
3

Standardized Spares

All wear components strictly follow DME/HASCO international standards. Your maintenance team can source replacement pins, bushings, and ejector components locally, eliminating costly downtime and international shipping delays.

  • 100% DME/HASCO standard components
  • Global availability for all wear parts
  • Detailed maintenance documentation provided
  • Preventative maintenance schedules included

Experience the difference of production-engineered tooling

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Injection Mold Making Modules 6-10
Engineering Excellence

Engineering-Led Collaboration (DFM)

Transform your concept into a production-ready design through rigorous technical analysis. Our comprehensive DFM process identifies and resolves potential manufacturing challenges before they become expensive production problems.

DFM mold flow analysis and engineering review
  • Comprehensive Mold Flow Analysis

    Advanced simulation of filling patterns, packing pressure distribution, and warpage prediction ensures optimal part quality. We identify potential defects before tooling begins, saving time and eliminating costly modifications.

  • Gate Optimization & Cooling Design

    Strategic gate placement minimizes visible marks and weld lines while ensuring balanced filling. Conformal cooling channels are engineered to reduce cycle times by 15-25%, dramatically improving your production economics.

  • Draft Angle & Tolerance Verification

    Meticulous verification of draft angles, wall thickness uniformity, and dimensional tolerances prevents ejection issues and assembly problems. Every geometric detail is analyzed against real-world manufacturing constraints and your specification requirements.

Solution-Oriented Approach

We don't just identify problems—we deliver ready-to-implement solutions. Every DFM review includes specific design recommendations, material alternatives, and process optimizations that reduce your manufacturing risk and accelerate time-to-market.

Start your project with professional engineering support

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World-Class Machining for Micron-Level Accuracy

Investment in premium manufacturing technology translates directly to superior mold quality. Our advanced equipment fleet delivers the precision, surface finish, and consistency that high-performance molding demands.

Sodick EDM precision mold making equipment
Wire & Sinker EDM

Sodick/Charmilles EDM

Ultra-precision electrical discharge machining achieves mirror-finish surface quality (Ra 0.01μm) and intricate details impossible with conventional machining. Perfect for complex optical surfaces and micro-features.

Makino CNC 5-axis high-speed machining center
5-Axis CNC Machining

Makino/Fanuc CNC

High-speed 5-axis machining centers handle complex curved surfaces and deep cavities with exceptional accuracy. Advanced CAM programming optimizes tool paths for superior finish and reduced machining time.

Erowa clamping system for precision repeatability
Precision Workholding

Erowa Clamping Systems

Swiss-engineered quick-change systems ensure 100% repeatability (±0.002mm) across multiple setups. This precision workholding eliminates alignment errors and accelerates multi-operation machining workflows.

24/7 automated lights-out manufacturing
Automated Production

24/7 Lights-Out Manufacturing

Fully automated pallet systems enable continuous unmanned operation during nights and weekends. This automation capability reduces your lead times by 30-40% while maintaining consistent quality standards.

Experience precision manufacturing with world-class equipment

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Zero-Defect Quality Assurance

Rigorous quality control at every stage ensures your mold performs exactly as engineered. Our comprehensive inspection protocols and digital traceability systems provide complete confidence in every tooling project we deliver.

Steel Verification

Every steel block undergoes spectrometer analysis to verify exact material composition and grade certification. This ensures your mold base material meets specified hardness, wear resistance, and heat treatment requirements.

Material Certified

In-Process CMM

Coordinate measuring machines verify critical dimensions at every machining stage. Real-time dimensional validation catches potential deviations before they compound, ensuring final tolerances within ±0.005mm specifications.

±0.005mm Precision

T1 Validation & FAI

Complete First Article Inspection reports document every critical dimension with full measurement data. T1 sample parts include material certifications, dimensional reports, and process parameters for your approval and records.

Full Documentation

Digital Traceability

Comprehensive digital records track every mold component from raw material through final assembly. Complete traceability enables rapid issue resolution and provides the documentation your quality systems require.

100% Traceable

Demand the quality assurance your production deserves

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Lifetime Performance

Guaranteed Mold Life (SPI Class 101 - 103)

Our molds are engineered for long-term production performance with guaranteed shot life backed by comprehensive warranty protection. Proper material selection, heat treatment, and maintenance planning ensure your tooling investment delivers returns for years.

SPI Class 101
1,000,000+
Shot Life Guarantee
  • Premium hardened steel construction (H13 hardened to HRC 48-52)
  • Designed for continuous high-volume production
  • Beryllium copper core inserts for extreme durability
  • Advanced cooling for consistent cycle times
  • Ideal for automotive and consumer electronics
SPI Class 102
500,000+
Shot Life Guarantee
  • Hardened steel with balanced performance (H13/S136)
  • Optimized for medium to high-volume production
  • Excellent cost-to-performance ratio
  • Suitable for most engineering resins
  • Perfect for medical devices and industrial components
SPI Class 103
250,000+
Shot Life Guarantee
  • Pre-hardened steel for cost-effective production (P20)
  • Ideal for prototyping and medium production runs
  • Faster lead times without sacrificing quality
  • Excellent machinability for complex geometries
  • Recommended for product development and testing

12-Month Workmanship Warranty

Every mold includes comprehensive warranty coverage against manufacturing defects and complete preventative maintenance documentation. We provide detailed service schedules, recommended spare parts lists, and technical support to maximize your mold's productive lifespan.

Invest in tooling engineered for long-term performance

Discuss Your Requirements

Seamless Integration: Tooling + Production

Eliminate the inefficiencies of working with separate tooling and molding vendors. Our integrated facility enables rapid problem-solving, streamlined communication, and accountability that multi-vendor approaches simply cannot match.

Traditional Approach

Separate tooling and molding vendors create finger-pointing delays. T1 issues take weeks to resolve across facilities.

Our Integrated Model

Single-source accountability. Mold issues resolved in-house within hours, not weeks, keeping your project on schedule.

  • Rapid T1 Iteration

    When T1 samples reveal necessary adjustments, our mold shop and production floor collaborate immediately. Modifications happen in hours, not the weeks required when coordinating between external vendors.

  • Process Optimization

    Real production data directly informs mold refinements. Our toolmakers understand actual molding conditions, enabling proactive improvements that enhance efficiency and part quality throughout the mold's lifecycle.

  • Seamless Transition to Production

    Validated molds move directly to our production floor with complete process documentation. No shipping delays, no knowledge transfer gaps—just smooth transition from sampling to full-scale manufacturing.

Integrated mold making and injection molding facility

Experience the efficiency of truly integrated manufacturing

Learn About Our Process
Injection Mold Making Modules 11-15
Proven Track Record

Real-World Success Stories

Engineering expertise proven through challenging production projects. These case studies demonstrate our ability to solve complex molding challenges and deliver measurable improvements in quality, efficiency, and cost performance.

Automotive light housing injection mold case study Automotive

Automotive Light Housing with Complex Optics

Challenge

Zero-draft vertical surfaces combined with critical optical transparency requirements created ejection challenges and surface quality concerns. Traditional approaches risked visible stress marks and dimensional distortion.

Solution

Implemented specialized mirror-polishing techniques and designed conformal cooling inserts that maintained uniform temperature throughout the optical surfaces. Strategic gate placement minimized weld lines in visible areas.

Results Delivered

Achieved 12% cycle time reduction through optimized cooling. 100% optical clarity met with zero cosmetic rejections across 500,000+ production shots. Customer approved for high-volume production within first T1 trial.

Medical device precision injection molding Medical

Medical Device Assembly with ±0.01mm Tolerances

Challenge

Multi-component medical device required tight assembly tolerances across four separate parts. Material shrinkage variation and tight dimensional control presented significant manufacturing challenges for consistent assembly fit.

Solution

Comprehensive mold flow analysis identified optimal processing window. Precision machining with in-process CMM verification ensured dimensional accuracy. Clean-room molding protocols maintained ISO Class 8 cleanliness standards throughout production.

Results Delivered

Achieved ±0.008mm dimensional consistency across all critical features. Zero assembly rejections through 300,000 production cycles. Full validation documentation package accepted by regulatory bodies for FDA submission.

Consumer electronics thin-wall molding case study Electronics

Consumer Electronics Housing with Thin-Wall Design

Challenge

0.8mm wall thickness combined with Class A surface finish requirements and large part dimensions created filling and warpage challenges. High-gloss aesthetic finish demanded flawless surface quality without sink marks or flow lines.

Solution

Advanced mold flow simulation optimized gate locations and runner sizing for balanced filling. High-polish EDM surface treatment achieved Ra 0.01μm finish. Precision temperature control system maintained uniform mold surface temperatures within ±2°C.

Results Delivered

Perfect Class A surface finish achieved with zero post-molding operations required. Reduced cycle time by 18% versus customer's previous supplier. Maintained consistent quality through 800,000+ production shots with minimal maintenance.

Let us solve your complex molding challenges

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Your Reliable Partner in China

Seamless collaboration with Western markets through professional communication, international standards compliance, and comprehensive logistics expertise. We bridge the gap between Chinese manufacturing capability and global quality expectations.

Professional Communication

Engineering teams fluent in technical English ensure accurate understanding of your specifications and requirements. No critical details lost in translation—we speak your language and understand your industry standards.

  • Native-level technical English communication
  • Direct engineer-to-engineer dialogue
  • Real-time response via email, video, and phone
  • Detailed technical documentation in English

International Standards

Complete compatibility with global tooling standards eliminates concerns about component availability and maintenance support. Your molds integrate seamlessly into your existing maintenance infrastructure and workflows.

  • Full DME, HASCO, and LKM compliance
  • Standard component specifications worldwide
  • IATF 16949 and ISO 13485 certified processes
  • Complete CAD data in standard formats

Logistics Excellence

Comprehensive export experience ensures your molds arrive safely and on schedule. We handle all logistics complexities so you can focus on production preparation rather than international shipping concerns.

  • Professional export packaging and crating
  • DDP and CIF shipping options available
  • Complete customs documentation support
  • Cargo insurance and tracking included

Partner with a manufacturer that understands global standards

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Transparent Project Workflow

Clear milestones and defined deliverables at every stage keep your project on schedule. Our structured process eliminates surprises and ensures you always know exactly where your tooling project stands.

1
Day 1-3

RFQ & Deep-Dive DFM

Comprehensive technical review of your 3D files with detailed manufacturability analysis and optimization recommendations delivered within 48 hours.

2
Day 4-7

Mold Design & Approval

Complete 3D mold design with runner layout, cooling system details, and ejection mechanism for your review and approval before machining begins.

3
Week 2-4

Steel Machining & Assembly

Precision CNC and EDM machining with in-process inspections. Complete mold assembly with final dimensional verification and quality documentation.

4
Week 5

T1 Trials & Samples

First shot trials with process parameter optimization. T1 samples shipped with complete FAI reports and material certifications for your evaluation.

5
Week 6+

Final Validation

Address any necessary refinements and conduct final validation runs. Export shipping or transition to mass production with complete documentation handover.

Experience project management that keeps you informed every step

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Common Questions

Frequently Asked Questions

Clear answers to the critical questions procurement and engineering professionals ask about tooling partnerships, ownership, and technical support.

Who owns the mold after completion?

You own the mold 100%. Upon project completion and final payment, full ownership transfers to you including all intellectual property rights. We provide complete 3D CAD files, manufacturing documentation, and maintenance records. The mold can be relocated to any facility worldwide at your discretion—we place no restrictions on ownership or usage rights.

How do you handle design changes (ECR) during the project?

We respond to Engineering Change Requests within 24 hours with clear analysis of feasibility, cost impact, and timeline adjustments. Our engineering team evaluates each change request against current project status and provides detailed recommendations including alternative approaches when applicable. All changes are documented with formal approval workflow to ensure complete transparency and eliminate scope creep surprises.

Do you provide the 3D mold design files?

Yes, absolutely. Upon project completion, you receive complete 3D CAD data in standard formats (STEP, IGES, Parasolid) including full mold assembly, individual component files, and 2D manufacturing drawings. This comprehensive documentation package enables you to maintain, modify, or reproduce the mold at any facility worldwide. We also provide detailed bill of materials with part numbers for all standard components.

What is your typical lead time from order to T1 samples?

Standard lead time is 5-6 weeks from design approval to T1 sample delivery for typical complexity molds. This includes complete machining, assembly, and first trial runs. Rush programs can be accommodated with 3-4 week turnaround through our lights-out manufacturing capability. Complex multi-cavity or stack molds may require 7-8 weeks. We provide detailed project schedules at quotation stage with clear milestone dates.

Can you handle both mold making and production molding?

Yes, we offer complete turnkey service from tooling through mass production. Our integrated facility houses both mold-making and injection molding operations, enabling seamless transition from T1 validation to full-scale manufacturing. This eliminates the coordination challenges of working with separate vendors. However, if you prefer to take the mold elsewhere for production, that's completely acceptable—you own the tool and control all decisions about its usage.

Have additional questions? Our engineering team is here to help

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Ready to Start?

Ready to Start Your Next Precision Project?

Partner with a manufacturer that combines engineering expertise, advanced technology, and proven quality systems. Upload your 3D files today and receive professional technical analysis within 24-48 hours.

  • 24-48 Hour Response

    Receive detailed technical review and preliminary quote within two business days

  • Confidential NDA Protection

    Your designs and project information protected under strict confidentiality

  • No-Obligation Technical Consultation

    Comprehensive DFM feedback with actionable recommendations at zero cost

Our Commitment

We respond to every inquiry with professional technical analysis. Your information remains confidential under NDA protection, and you receive actionable engineering insights regardless of whether you proceed with our services.

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