Precision Injection Mold Design & Manufacturing
Engineer-Led Custom Mold Solutions Built for Performance & Longevity
From single-cavity prototypes to complex multi-cavity production molds, our 20-year expertise ensures your tooling delivers consistent, precise parts across millions of cycles.
High Precision
Tolerance control down to ±0.01mm for critical dimensions
Multi-Cavity
Advanced molds with up to 64 cavities for high-volume production
Expert Solutions for Your Tooling Challenges
We deliver precision-engineered molds that meet your exact specifications, combining advanced technology with decades of expertise.
Durability Concerns
Are you concerned about long-term mold durability for high-volume production runs?
Complex Geometry
Struggling to find a mold maker who can handle complex part geometry with tight tolerances?
Design Optimization
Need a tooling partner who thinks beyond the mold to optimize your part design?
Our Engineering Approach
At TENGJIN, we engineer molds that deliver precisely what your project demands. Our toolmakers combine state-of-the-art CNC and EDM equipment with decades of hands-on experience.
We prioritize mold lifecycle performance - from material selection to cooling design - ensuring your production runs smoothly for years to come.
Premium Materials
We select the optimal steel grade for your specific application, ensuring maximum mold life and performance.
Precision Engineering
Our advanced CNC and EDM capabilities deliver tolerances as tight as ±0.01mm for your most demanding projects.
Optimized Cooling
We design sophisticated cooling channels that reduce cycle times and prevent part warpage.
Precision Mold Design & Manufacturing Capabilities
With over 20 years of expertise, our comprehensive injection mold solutions are engineered to meet the most demanding manufacturing requirements.
Specialized Mold Types
Prototype Molds
Fast-track tooling for design validation
Multi-Cavity Molds
1-32 cavities for production efficiency
Family Molds
Multiple different parts in one tool
Hot Runner Systems
Gate-mark free parts with efficiency
Unscrewing Molds
Specialized tooling for threaded parts
Two-Shot (2K) Molds
Multi-material components
Over-molding Tools
Insert molding applications
Silicone/LSR Molds
Elastomeric component tooling
Technical Specifications
Mold Base Dimensions
Maximum Length
Maximum Width
Standard Size Categories:
Mold Tolerance Capability
On critical dimensions for precision components
Achievable Tolerances by Feature:
Surface Finish Options
High Polish (A Series)
Semi-Polish (B Series)
Textured/EDM (C Series)
Specialty Capabilities
Conformal Cooling
3D printed cooling channels that conform to the part geometry, optimizing cycle times and part quality.
- Reduces cycle time by up to 40%
- Minimizes warpage in complex geometries
- 3D metal printing & hybrid manufacturing
Sequential Valve Gating
Precision-timed injection control for optimal flow and reduced pressure drop in multi-cavity molds.
- Eliminates weld lines and flow marks
- Electric or pneumatic valve gate systems
- Up to 32 gates with independent timing
Mold Texture & Surface Engineering
Advanced surface treatments and texturing options for aesthetic and functional requirements.
- Chemical etching for micro-textures
- Laser texturing with 3D patterns
- PVD & DLC coatings for wear resistance
Advanced Mold Features
Material Compatibility
Quality Control Systems
Precision Measurement Equipment
Coordinate Measuring Machines (CMM)
3D inspection with precision down to 0.001mm for critical mold features and first article inspections.
Optical Measuring Systems
Non-contact 3D scanning with blue light technology for rapid mold surface verification and complex geometry inspection.
Surface Roughness Testers
Digital instruments for quantitative validation of surface finish quality according to required specifications.
Mold Testing & Validation
T0 Trials & Process Validation
Comprehensive mold trials with process parameter optimization before customer approval and shipment.
Mold Flow Analysis
Advanced simulation software to validate mold design prior to manufacturing, identifying potential issues early.
Lifetime Testing
Extended cycle testing for wear-critical components to verify mold longevity and maintenance intervals.
ISO 9001:2015 Certified Quality Management System
Our mold manufacturing follows strict quality control procedures with full documentation and traceability throughout the process. Each mold undergoes a rigorous 26-point inspection before customer approval and shipping.
Ready to discuss your mold specifications?
Our engineering team can provide a detailed mold design and manufacturing proposal tailored to your specific requirements. Contact us today for a consultation.
Our Advanced Mold Manufacturing Technology
We utilize state-of-the-art equipment and innovative techniques to deliver precision molds with exceptional performance.
Design
Engineering
CNC
Programming
Precision
Machining
EDM
Processing
Heat
Treatment
Assembly &
Testing
Design Engineering
Our engineering team uses advanced CAD/CAM software to develop optimized mold designs with precise gating, cooling, and ejection systems tailored to your specific part requirements.
CNC Programming
Our programmers create optimized toolpaths for 3-axis, 4-axis, and 5-axis machining, ensuring efficient material removal while maintaining critical tolerances.
Precision Machining
We use high-performance CNC machining centers to achieve surface finishes down to Ra 0.2μm and dimensional tolerances of ±0.01mm for core, cavity, and precision components.
EDM Processing
Our wire and sinker EDM capabilities allow us to create complex geometries, sharp corners, and deep ribs with precision to meet the most challenging design requirements.
Heat Treatment
Our controlled heat treatment processes ensure optimal hardness and durability for mold components, extending tool life and maintaining dimensional stability.
Assembly & Testing
Our skilled technicians meticulously assemble and test every mold, verifying smooth operation, proper venting, and accurate alignment before shipment or production.
CNC Machining Centers
High-speed 3-axis to 5-axis CNC machines for complex geometries and precision parts.
EDM Equipment
Wire-cut and sinker EDM systems for precise cavity and core machining with superior surface finishes.
CMM Inspection Systems
Advanced coordinate measuring machines for dimensional verification and quality control.
Surface Treatment
Specialized equipment for polishing, texturing, and coating to achieve required surface specifications.
Looking for Precision Tooling?
Consult with our mold engineering experts to explore how our technology can serve your specific manufacturing needs.
Our Mold Engineering Success Stories
Discover how our precision mold engineering solutions have helped clients overcome complex manufacturing challenges across industries.
Complex Housing with Extreme Precision
Challenge
Complex housing with extremely tight tolerances (±0.02mm) and multiple slide actions required for an industrial automation manufacturer.
Solution
Custom-designed multi-cavity mold with conformal cooling channels and specialized steel inserts to maintain dimensional stability.
Results
40% reduction in cycle time, zero defects across 1.5 million parts, and the mold is still performing flawlessly after 3 years of continuous production.
High-Cosmetic Smart Device Housing
Challenge
Highly cosmetic parts with zero sink marks and complex internal features for a premium smart device manufacturer.
Solution
Gas-assisted hot runner system with specialized surface treatments and advanced venting design to eliminate visual defects.
Results
Class-A surface quality achieved, 30% material savings, and first-pass approval for production, enabling on-time product launch.
LSR Medical Component
Developed micro-precision liquid silicone rubber mold with automatic flash removal system for critical medical components.
Multi-Cavity Connector Housing
Engineered a 32-cavity mold for automotive connectors with a custom cooling system that reduced cycle time by 35%.
Large Format Control Panel
Created family mold solution for various control panel components with gas-assist technology for complex geometries.
"TENGJIN's mold engineering team transformed our problematic design into a highly manufacturable product. Their attention to detail in the mold design saved us countless headaches during production."
Engineering Director
US-based Consumer Electronics Company
Why Clients Choose Our Mold Engineering
±0.01mm Precision Tolerances
Up to 32 Cavity Multi-Mold Design
1M+ Cycle Mold Lifespan
Class-A Surface Capability
Ready to Discuss Your Mold Engineering Project?
Our engineering team is ready to analyze your requirements and provide a detailed solution tailored to your specific needs.
Complete Your Manufacturing Journey
Explore our comprehensive manufacturing services to support your project from concept to completion.
Need a comprehensive manufacturing solution? Our team can help you navigate the entire process.
Contact Our ExpertsReady to Start Your Mold Project?
Let our 20 years of expertise transform your product ideas into reality. We offer confidential consultations to discuss your specific requirements.
NDA-Protected Discussions
Your intellectual property is safe with us. All consultations are covered by our standard non-disclosure agreement to protect your innovative ideas and designs.
Free Design for Manufacturing Analysis
Submit your design and receive a complimentary DFM analysis. Our engineers will identify potential issues and suggest improvements before production begins.