Custom CNC Machining Services in China
Precision CNC milling, turning, 5-axis machining, EDM, grinding and OEM metal parts manufacturing with engineering review, inspection and assembly support.
Reliable CNC Machining for OEM Buyers
This hub page is built for procurement teams that need one supplier to connect machining, finishing, inspection and repeat production.
Many OEM buyers face problems such as unstable tolerance, poor communication, delayed delivery, unclear inspection reports, and suppliers who cannot combine machining with finishing or assembly.
Ningbo Feiyu supports OEM and ODM buyers with drawing review, process planning, CNC machining, EDM, grinding, surface finishing, assembly and final inspection from one manufacturing base.
Our CNC Machining Capabilities
Choose one process for a single part, or combine machining, EDM, grinding, finishing and assembly for OEM programs.
Wire EDM
Hardened steel, tooling parts, mold inserts, punch dies and tight-tolerance profiles with sharp details.
View capability ->Sinker EDM
Deep cavities, mold details and hard-to-machine internal features where electrode EDM is more suitable.
View capability ->5-Axis CNC Machining
Complex geometries, multi-angle features and precision OEM parts that need fewer setups and stable alignment.
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HMC Horizontal Machining
Multi-sided housings, blocks, manifolds and batch-machined components with stable fixturing.
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VMC Vertical Machining
CNC milling for brackets, plates, covers, fixtures and precision features that need stable vertical machining access.
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CNC Turning
Shafts, bushings, pins, sleeves and cylindrical components for OEM equipment and mechanical assemblies.
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CNC Gantry Milling
Large plates, frames, bases and oversized components where travel range, rigidity and datum control are critical.
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CNC Grinding
High surface finish, roundness control and final dimensional accuracy after turning or heat treatment.
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Broaching
Internal keyways, splines, hex profiles and repeat profile features that require consistent form accuracy.
View capability ->CNC Equipment Videos Buyers Can Review
Before quotation, buyers can check real CNC machining, 5-axis machining, broaching and workshop control scenes from Feiyu's manufacturing floor.
Complex Parts
Multi-face machining and fewer setups for complex OEM parts.
Profiles
Keyways, splines and internal form features.
Batch Flow
Organized production bins and process control.
Inspection
Sample verification and dimensional checks.
5-Axis CNC Machining
Useful for complex parts, multi-angle features and precision OEM components.
Broaching Process
Supports keyways, splines, hex profiles and repeat internal features.
Machining Workshop
Shows the production floor, equipment layout and real manufacturing environment.
Materials for CNC Machined Parts
Material selection affects machining strategy, tolerance stability, surface finish and inspection method. Our engineering team reviews material grade, hardness, finish requirements and end-use conditions before production.
Housings, brackets, plates, covers, lightweight structures
Good machinability and weight reduction. Common finishes include anodizing, powder coating, bead blasting and e-coating.
Industrial shafts, pins, plates, fixtures, structural parts
Cost-effective for strength and repeat production. Can be combined with zinc plating, black oxide, powder coating or heat treatment.
Corrosion-resistant shafts, bushings, fittings, outdoor hardware
Used when corrosion resistance and durability matter. Surface options include polishing, passivation and electropolishing when specified.
Fittings, bushings, threaded connectors, electrical hardware
Stable cutting performance for precision fittings. Supports polishing, nickel plating and other customer-specified finishes.
Conductive terminals, heat-transfer parts, bus-bar components
Selected for conductivity and thermal performance. Burr control, deformation control and plating requirements are reviewed before machining.
High-strength shafts, sleeves, gears, support blocks
Suitable for higher load parts. Machining can be combined with heat treatment, grinding, black oxide or phosphating.
Mold inserts, punch dies, tooling plates, wear components
Often combined with Wire EDM, Sinker EDM and grinding after heat treatment for tight profiles and sharp internal features.
Insulators, low-friction bushings, fixtures, protective parts
Useful for insulation, wear reduction or low-friction movement. Dimensional stability and burr control are reviewed by material.
Post-machined housings, covers, mounting faces, threaded features
Supports secondary machining of cast blanks where datum control, flatness, tapped holes or sealing surfaces are required.
CNC Machining Capability & Quality Control
A quick technical view for OEM buyers comparing machining suppliers, drawing requirements and inspection needs.
View Quality ControlEngineering Support Before Production
Before machining starts, our engineering team reviews drawings, tolerances, materials, surface finish requirements, assembly conditions and inspection standards.
DFM Review
Drawing risks, machining access, part geometry and tolerance stack-up are reviewed before machining starts.
Tolerance Evaluation
Critical dimensions are checked against process capability, material behavior and inspection method.
Fixture Planning
Fixturing is planned for repeatability, multi-sided access and reduced setup variation.
CAD/CAM Programming
Toolpaths are prepared for machining sequence, surface finish and efficient batch production.
Cost Reduction Suggestions
We look for ways to reduce setups, simplify features and combine machining with finishing or assembly.
Sample Validation
Samples and first article inspection help confirm the part before repeat OEM production.
Inspection-Controlled CNC Machining
Every machined component can be inspected according to drawing requirements and customer quality standards. Our workflow includes incoming material inspection, first article inspection, in-process checks, CMM inspection and final dimensional verification.
In-Process Inspection
Critical features are checked during machining to reduce batch variation.
CMM Inspection
Dimensional verification supports high-precision OEM parts and reports.
First Article Inspection
Sample validation helps confirm machining process before mass production.
Final Verification
Finished parts are checked against drawing and shipment requirements.
CNC Machined Parts for OEM Industries
Automotive & Mobility
Machined brackets, shafts, connectors and assembly-ready metal parts for vehicle accessory programs.
Outdoor Equipment
Durable stainless steel and aluminum components for vibration, weather and repeated use.
Industrial Equipment
Housings, blocks, plates and precision hardware for repeatable equipment manufacturing.
Robotics & Automation
Precision brackets, fixtures, plates and motion-related parts where alignment matters.
Electric & Telecom Components
Conductive copper and brass components, enclosures and structural parts for assemblies.
Energy & Power Equipment
High-strength machined parts, fastening components and assemblies for demanding conditions.
Metal Cabinets & Enclosures
Machined hinges, plates, frames, locks and hardware with finishing support.
Hardware & Fastening Parts
Pins, sleeves, bushings, inserts and custom OEM hardware manufactured to drawings.
Typical Parts We Manufacture
Custom machined metal parts based on customer drawings, quality requirements and production volumes.
CNC Machining Project Examples
CNC Machined Shaft
Aluminum Housing
Tooling Insert
CNC Machining FAQ
Key quotation, engineering review, production and inspection questions are grouped so OEM buyers can find the right answer faster.
Before Quotation
Q01 What information do you need for a CNC machining quote? +
Please send 2D drawings, 3D files, material grade, tolerance notes, surface finish requirements, quantity, inspection requirements and any assembly or packaging needs.
Q02 What materials can you machine? +
We machine aluminum alloys, carbon steel, stainless steel, brass and bronze, copper alloys, alloy steel, tool steel, engineered plastics and selected cast or die-cast blanks.
Q03 What tolerance can you achieve? +
Tolerance is reviewed by drawing, material and geometry. For selected features and controlled conditions, tolerance capability can reach up to +/-0.005 mm.
Q04 Can you support both prototype and mass production? +
Yes. We support prototype validation, small batch production and repeat OEM production with process planning and inspection control.
Q05 Can you provide inspection reports? +
Yes. We can provide first article inspection, in-process inspection records, CMM reports and final dimensional inspection reports according to project requirements.
Manufacturing & Inspection
Q06 Do you offer DFM review before machining? +
Yes. Our engineering team reviews drawings, tolerances, materials, fixtures, machining sequence, surface treatment and assembly conditions before production.
Q07 Can CNC machining be combined with surface finishing? +
Yes. Machined parts can be supported with anodizing, powder coating, plating, e-coating, polishing and other drawing-specified finishes.
Q08 Can you support assembly after machining? +
Yes. Ningbo Feiyu can combine machining with inspection, finishing, component assembly and final packaging for OEM programs.
Q09 What file formats do you accept? +
We commonly accept PDF, DWG, DXF, STEP, STP and IGES files for quotation and engineering review.
Q10 How do you control quality for CNC machined parts? +
Our workflow includes incoming material inspection, first article approval, in-process checks, CMM inspection where required and final verification before shipment.
Send Your CNC Machining Drawings for Review
Upload your 2D drawings, 3D files, material requirements, tolerance notes, quantity and surface finish requirements. Our engineering team will review your project and provide manufacturing feedback.