For design engineers
Review manufacturability, materials, tolerances and prototype requirements before committing to a manufacturing route.
Upload a prototype drawing →CNC, Swiss machining and precision grinding
Precision parts reviewed by an engineer before pricing
Shenghao manufactures precision components from prototype through production, with engineering review, no MOQ and quality-controlled production around your drawing.
- Core strengths in CNC machining, Swiss machining and precision grinding
- Manufacturability review for tolerances, material, tooling access and inspection needs
- No MOQ. Start with one prototype before moving to production
- Typical CNC lead time: 10–20 days after drawing review
±0.003 mmCNC capability when appropriate
200+Machines on the floor
18 yearsPrecision manufacturing since 2008
10–20 daysTypical CNC lead time
Built for automotive, medical, and industrial engineering teams
Customers we serve
Companies we have supplied
Shenghao has served Sony, BYD, Huawei, Ant Group, Lovol, ColdSnap, TIMEMORE, LeBrew, Blue Robotics and Mediso.
For purchasing teams
Share quantities, delivery requirements and inspection documents so your quote covers the complete part requirement.
Request a production quote →For supplier quality teams
Review certifications, inspection documentation and traceability requirements before approving a supplier.
Review quality and certifications →Parts we manufacture
Precision components for the products you build.
From connector pins and relay components to shafts, sleeves and valve fittings, send us the drawing and the features that matter to your assembly.
Connector pins and terminals
Custom brass, phosphor-bronze and stainless-steel components for electrical connections. Discuss turning, grinding and finishing requirements against your drawing.
Explore Swiss machining →Relay and DC-contactor components
Custom metal components for switching assemblies, with material, contact geometry and dimensional requirements reviewed before production.
Explore custom CNC parts →Precision shafts, sleeves and fittings
Turned parts for motion, alignment and fluid connections, with threads, mating fits and finishing specified for your application.
Explore CNC turning →Supporting smart appliances, consumer electronics, electric vehicles and industrial automation from samples through repeat production.
Who you're talking to
One Team, Start to Finish
Our engineering team reviews your drawing, prices it, and stays on your order through production and shipping. You're not handed to a new contact at each stage, and you're not filing a support ticket when something needs a second look.
We're the ones who answer when you email a drawing or send a message on WhatsApp. Not a shared sales inbox monitored by whoever's free.
Why Shenghao
What working with us actually looks like
Send your drawing for a review of tolerances, tooling access, materials and inspection requirements before production.
Engineering review
An engineer checks your part first
Every RFQ goes through a manufacturability review before pricing — tolerance issues, wall thickness, tooling access are flagged before you commit, not after the first batch fails.
Single point of contact
One team, start to finish
The person who quotes your part is the same person managing it through production and shipping — no hand-off, no re-explaining your spec to someone new.
Full-solution
Multiple processes, one engineering team
Core CNC, Swiss machining and grinding, with molding, sheet metal, casting, 3D printing and EDM coordinated around your drawing and project requirements.
Manufacturing capabilitiesPrecision manufacturing built around
Precision manufacturing built around
machining expertise.
CNC, Swiss machining and grinding are core strengths. Additional processes and finished-part requirements can be coordinated around your project.
CNC Machining
3, 4 & 5-axis milling and turning.
Explore CNC MachiningSwiss Machining
Small, complex precision turned parts.
Explore Swiss MachiningPrecision Grinding
5-axis grinding for tolerance-critical features.
Explore Precision Grinding
Injection Molding
Tooling and production molding.
Explore Injection Molding
Sheet Metal Fabrication
Laser cutting, bending and fabrication.
Explore Sheet Metal
3D Printing
Additive manufacturing for prototypes.
Explore 3D Printing
Die Casting 
Urethane Casting 
Compression Molding 
Surface Finishing 
Assembly CNC, Swiss machining and grinding are core strengths. Additional processes and finished-part requirements are coordinated to suit your program.
View all capabilitiesSolutions
Manufacturing support for the challenge in front of you.
Whether you are validating a design, coordinating several processes or qualifying another supplier, start with the requirements your team needs to meet.
Prototype to production
Start with a sample or short run, then plan repeat production with the same engineering team. We review the manufacturing route as your quantities grow.
For hardware launches, growing OEMs and low-volume programs.
Plan your prototype →One team for multiple processes
Coordinate machining, molding, sheet metal, finishing and assembly through one engineering contact. We define the process scope and delivery plan around your part or assembly.
For assemblies and parts needing several manufacturing processes.
Explore coordinated manufacturing →Meet your quality requirements
Review our quality system and registered scopes. Agree first-article approval, inspection reports and traceability requirements before placing your order.
For medical-device and automotive purchasing teams.
Review quality and inspection →Read the Ivo development case →Plan around your delivery date
Share your required date, quantity and drawing revision. Typical CNC lead time is 10–20 days; we confirm feasibility and timing after reviewing material, finishing and inspection needs.
For launch teams and buyers with a fixed delivery date.
Discuss your delivery date →Resolve tight-tolerance features
Combine machining and precision grinding where your drawing calls for it. Grinding capability reaches ±0.001 mm on suitable features, subject to geometry, material and engineering review.
For critical fits, ground journals and precision components.
Explore precision grinding →Qualify a second source
Start with a drawing review and sample run. Agree your acceptance criteria and documentation so your team can evaluate Shenghao before transferring repeat production.
For purchasing teams developing an additional supplier.
Discuss supplier qualification →Upload your 2D drawing or 3D CAD file for engineering review and quotation.
Upload a drawing →
Your CAD file
What happens to your drawing after you send it
The question every buyer has and most never ask out loud.
Who actually sees it
Your drawing goes to the engineer reviewing it for manufacturability, then to the machinists building your order. It doesn't get forwarded outside the people working on your part.
NDA before you send anything
If your drawing needs an NDA in place first, ask for one before you send the file. We'll sign it. We just don't send one unprompted, so ask if you need it.
Your design isn't reused
Your file is used to quote and build your order, not kept on file to reference for other customers' parts.
How it works
From drawing to shipped part in four steps
The same team stays with your part from quote to delivery.
1
Upload your drawing
Send your 2D drawing or 3D CAD file, material, quantity and deadline through the RFQ form. Email and WhatsApp remain available if you need them.
2
Manufacturability review
An engineer checks tolerance stack-up, wall thickness, and tooling access, and flags anything that won't machine as drawn.
3
Engineer-reviewed quote
Your price is based on the part as drawn, with any suggested changes noted separately. Not a number generated from your file size.
4
Build, inspect, ship
First article and final inspection against your print. Dimensional reports and traceability documentation ship with every order.
Not ready for a production order
Start with a sample run
No MOQ — start with a single part or a small batch to check fit, finish, and how we handle your file before you commit to volume. You receive the same manufacturability review and engineering support as a production quote.
Industries We Serve
Built for parts that get audited, not just ordered
Where tolerance, traceability, and repeatability aren't optional.
Automotive
Tier 1 and Tier 2 supply for automotive programmes.
Medical Devices
Full traceability for regulated medical programmes.
Aerospace Components
Tight-tolerance structural parts.
Robotics & Automation
Low-volume, high-mix parts.
Industrial Equipment
Production volume for OEMs.
Instrumentation
Fine-tolerance sensing parts.
Certifications
Quality systems and inspection
Quality system, registered scope and our 4-step inspection process, in the detail a procurement team actually asks for.
See Quality & Certifications →
FAQ
Common questions
What's your minimum order quantity?
No MOQ. We quote single prototypes the same way we quote production runs, and scale with you from there.
Can I get an NDA before sending my drawing?
Yes. Ask for our NDA before you send anything and we'll get it signed first. We don't send one unprompted, so ask if you need it in place.
Who exactly will I be working with?
Our engineering team. They review your drawing, price it, and stay on your order through production and shipping, so you're not routed to a different contact at each stage.
Send us a drawing. Get a real engineer's answer.
Upload your 2D drawing or 3D CAD file, material, quantity and target date for engineering review and quotation. No MOQ — start with one prototype.