Precision Engineering
From Concept to Component
We are not a traditional factory. PreciZen Forge operates as a dedicated Parts Lab -- delivering end-to-end precision forging and CNC machining solutions to global B2B clients who demand zero compromise on quality, tolerance, and lead time.
A Parts Lab Built for Engineering Complexity
Operated by ZJG Jingyuan Metal Products Co., Ltd., PreciZen Forge is headquartered in Zhangjiagang, Jiangsu Province -- one of China's most advanced industrial manufacturing corridors. We specialize in high-precision closed-die forging and multi-axis CNC machining for mission-critical metal components.
Our clients are lead engineers, procurement managers, and supply chain directors at global OEMs, Tier 1 and Tier 2 suppliers, and specialized engineering firms across the automotive, electric motor, and heavy construction machinery industries.
What differentiates us is our integrated Design to Manufacturing (D2M) approach -- combining in-house tooling, rapid prototyping, scalable production, and rigorous quality assurance under one technical roof, led by our Production Technical Director, Xu Shin.
End-to-End D2M Engineering
From initial CAD analysis through die making, forging, and final precision machining -- we manage every stage of the manufacturing process in-house for maximum control, speed, and quality.
CAD to Forge
Complete D2M engineering from CAD analysis through closed-die forging to final precision machining -- all under one technical roof.
Rapid Tooling
In-house die making with 4 sets of 3-axis CNC centers enabling accelerated prototyping cycles and shortened R&D timelines.
Premium Alloys
High-grade 4140 and 4340 steel, custom-specified for high-fatigue, high-RPM structural applications with verified material composition.
Scalable Output
Seamless transition from engineering sampling to mass production via our integrated 1000T+ press network and 10+ additional CNC lines.
Industries We Serve
Our components are engineered to perform in the most demanding industrial environments globally.
Automotive
Drivetrain components, suspension parts, transmission shafts, and high-stress structural elements for global OEMs and Tier 1/2 suppliers.
Electric Motors
High-RPM rotor shafts, motor housings, and precision-machined components engineered for the demands of next-generation electric powertrains.
Heavy Machinery
Structural forgings, hydraulic components, and load-bearing parts for heavy construction, mining, and industrial equipment manufacturers.
Zero Defects.
Every Batch.
Our quality assurance framework is overseen directly by Production Technical Director Xu Shin. Every component that leaves our facility has passed a rigorous multi-stage inspection protocol designed to eliminate defects before they reach your assembly line.
Incoming Material Verification
Strict incoming inspection with verifiable material composition reports for every alloy batch. No unverified materials enter production.
Advanced Structural Testing
Metallographic analysis, hardness testing, and ultrasonic flaw detection ensure grain flow optimization and structural integrity at every critical section.
100% Final Dimensional Inspection
Every critical dimension is verified before shipment. Forged blanks are held to ±0.1mm to ±0.3mm tolerances with full batch traceability documentation.
Built for Precision at Scale
Our Zhangjiagang facility is engineered for both rapid engineering sampling and high-volume mass production -- with the flexibility to seamlessly scale between the two.
Core Forging Lines
- ▸2 × 400-ton closed-die forging presses
- ▸1 × 600-ton closed-die forging press
- ▸Integrated heat treatment capability
In-House Tooling
- ▸4 × dedicated 3-axis CNC machining centers
- ▸Rapid die making and prototyping
- ▸Full tooling lifecycle management
Extended Network
- ▸Verified 1000T+ press partner network
- ▸10+ additional CNC machining lines
- ▸Managed supply chain -- no outsourcing risk
Precision Standards
- ▸Forged blanks: ±0.1mm to ±0.3mm
- ▸Grain flow optimization verified
- ▸Material composition certified per batch
Production Flexibility
- ▸Engineering sampling to mass production
- ▸Rapid tooling shortens R&D cycles
- ▸Comprehensive lead time management
Location
Building 2, WannianYongning Road, Daxin Town
Zhangjiagang City
Jiangsu Province, China
Engineers Leading Engineers
Our team is built around deep technical expertise. When you work with PreciZen Forge, you communicate directly with engineers who understand the complexity of your components -- not sales intermediaries.
Xu Shin
Oversees all engineering operations, quality assurance frameworks, and production line management. Xu Shin's technical leadership ensures every component meets the strictest dimensional and structural standards before leaving the facility.
Xu Leo
Resident engineering expert and technical content architect. Xu Leo bridges complex manufacturing knowledge with clear, actionable insights for our global B2B clients -- ensuring technical alignment from inquiry to delivery.
ZJG Jingyuan Metal Products Co., Ltd.
PreciZen Forge is the international engineering brand of ZJG Jingyuan Metal Products Co., Ltd. -- a registered precision manufacturing entity based in Zhangjiagang, Jiangsu Province, China, serving global markets across North America, Europe, and advanced Asian industrial hubs.
Ready to Engineer Your Next Critical Component?
From rapid prototyping and tooling to scalable mass production -- our Parts Lab delivers the precision, traceability, and engineering support your most demanding applications require.
Location
Building 2, WannianYongning Road, Daxin Town
Zhangjiagang City
Jiangsu Province, China
Technical Leadership
Production Technical Director: Xu Shin
Engineering Insights: Xu Leo
ZJG Jingyuan Metal Products Co., Ltd.
Markets Served
North America · Europe
Advanced Asian Industrial Hubs
English-speaking engineering support