Custom Injection
Mold Solutions
Precision engineered molds with advanced technology and 20 years of core manufacturing experience. Your trusted partner for quality plastic injection molding.
High Precision
Tolerance control within ±0.01mm
Quality Assured
ISO 9001:2015 Certified
Fast Delivery
4-6 weeks lead time
Full Support
DFM & Engineering Services

Industry-Specific Solutions
With 20+ years of precision mold making experience, we provide customized solutions across different industries with professional engineering support.
Smart Innovation
Specialized in high-precision mold manufacturing for smart devices, ensuring excellent fit and finish for your innovative products.
What we offer
Professional smart device mold manufacturing and plastic parts customization, helping bring your innovative ideas to life.
Why choose us
20+ years of precision mold making experience with advanced equipment and professional engineering support.
Material Expertise Showcase
200+ material grades ensuring your custom parts meet demanding specifications
Engineering Plastics
Commodity Plastics
Elastomers
Compliance Focus
Custom Manufacturing Process
Professional & Efficient Manufacturing Journey

Design Review & DFM
Expert DFM analysis within 24 hours. Optimize your design for manufacturing efficiency and cost reduction.

Mold Design
Professional mold design with 3D simulation and optimization for perfect production results.

Prototyping
Rapid prototyping services with CNC machining and 3D printing for quick validation.

Tooling
High-precision mold manufacturing with regular progress updates and quality checks.

Trial Production
Sample validation and quality inspection before mass production begins.

Mass Production
Efficient mass production with strict quality control and on-time delivery.
Trusted by Industry Leaders Worldwide
From innovative startups to established manufacturers, our partners trust us to deliver excellence
"TENGJIN's proactive DFM support was a game-changer for us. Their speed and expertise helped us launch our product a full quarter ahead of schedule. They are a true engineering partner."
"For years, TENGJIN has been our most reliable supplier. The quality consistency is exceptional, batch after batch. They truly understand the high standards of the German market."
"The precision of the components we received for our automation line was outstanding. Their team has the technical depth to handle challenging engineering-grade materials and complex geometries."
Success in Action: Featured Case Studies
We don't just make parts; we build partnerships. See how we've helped global leaders overcome their toughest manufacturing challenges.
Rapid Prototyping & Precision Molding

High-Volume Production Excellence

High-Performance Industrial Parts

Quality & Precision Foundation
20 years of manufacturing excellence with unwavering quality standards
Advanced Quality Control
State-of-the-art facilities ensuring precision
We're Not Just a Supplier, We're Your Engineering Partner
Beyond manufacturing excellence, we bring 20 years of engineering expertise to collaborate with you from concept to completion.
Ready to Turn Your Design into a Tangible Success?
Whether you have a detailed CAD file or are still refining your concept, our team is ready to help. Choose the path that best suits your current needs.
Get a Free DFM & Project Review
This is more than a quote. Upload your design, and our senior engineers will provide a complimentary review within 48 hours. We'll help you:
- Identify potential manufacturing risks
- Suggest optimizations for material, cost, and function
- Confirm the feasibility of your most critical tolerances
- Provide a preliminary project roadmap
Who is this for: Ideal for R&D teams, engineers, and product innovators looking for an expert technical partner.
Request a Formal Quote
Have your specifications ready? Upload your 2D/3D files, and our team will deliver a detailed and transparent quote, typically within 24 hours. Your quote will include:
- Mold Cost (with mold steel details)
- Unit Price (with volume tiers)
- Material Options & Lead Times
- Clear Payment & Shipping Terms
Who is this for: Perfect for procurement managers and buyers who need a fast, comprehensive, and competitive quotation for a defined project.
Just have a quick question? Or not ready to submit a project?
Email our engineering team directly at [email protected]