01
Precision CNC Machining
Complex aluminum, stainless steel, copper and engineering plastic components—from one-off prototypes to repeatable production.
- Complex geometry
- Thin-wall parts
- Tight-tolerance assemblies
& Automation Request a quote
U.S.-based customer support · Global manufacturing
Precision engineering
from prototype to production.
CNC machining, NPI tooling, automation and test solutions for AI hardware, robotics, semiconductor and advanced electronics.
ZGSENGINEERED
TO SCALE
TO SCALE
CAPACITY300+CNC systems
WORKFLOWDFMto production
EXPERIENCE25+years
2001Advanced manufacturing foundation
300+Precision CNC systems
DFM → MPOne integrated path to production
U.S. + AsiaResponsive global delivery model
What we deliver
Engineering depth.
Production scale.
We combine precision manufacturing with hands-on engineering support—so your supplier does more than build to print.
02
NPI Tooling & Fixtures
Assembly, positioning, press-fit and test fixtures engineered around your product, process and production targets.
- DFM support
- Jigs & fixtures
- Pilot-line validation
03
Custom Automation
Integrated mechanical, controls and vision systems for precision assembly, handling and process automation.
- Machine vision
- Motion control
- System integration
04
Automated Testing
Functional, RF and production test solutions with data capture, traceability and manufacturing-system interfaces.
- FPC / PCBA
- RF testing
- Traceability
Industries
Built for the hardware
defining what comes next.
Complex parts. Compressed schedules. No room for ambiguity. ZGS supports engineering teams operating at the edge of manufacturability.
01AI Infrastructure↗
02Robotics↗
03Semiconductor Equipment↗
04Optical Communication↗
05Advanced Electronics↗
06Automotive & New Energy↗
How we work
A controlled path
from idea to output.
One accountable workflow connects customer requirements, engineering decisions, manufacturing controls and delivery.
Review
Drawing review, NDA and requirements alignment
Engineer
DFM feedback, process planning and quotation
Validate
Prototype, inspection and pilot-build validation
Scale
Controlled transition to repeatable production
About ZGS
Local accountability.
Established manufacturing.
ZGS Precision Engineering & Automation is the U.S. operating brand of Wellbush Inc., connecting American engineering teams with an established advanced-manufacturing network in Asia.
Our manufacturing foundation began with precision SMT stencils in 2001 and expanded into CNC machining in 2003, followed by NPI tooling, custom automation and automated test systems.
Today, we support customers from early design review and prototype builds through pilot validation and stable production.
Start a project
Have a drawing?
Let's make it manufacturable.
Send us your 2D drawings, 3D models, material, quantity and target delivery date. Our engineering team will review the requirements and respond with the next step.
Request a DFM reviewPDF · STEP/STP · IGES · DWG/DXF · ZIP