CNC Milling Services
CNC Milling Services for Prototype and Low-Volume Custom Parts
OUJI supports custom CNC milled parts based on your drawings, material, tolerance, quantity, and finishing requirements. Send your 2D/3D files for a practical quote review within 12 hours. Simple CNC milled parts can be fast-tracked from 7 days.
Send PDF, STEP, STP, IGS, DXF files with material, quantity, tolerance, and surface finish notes for a practical manufacturing review.
Send drawings, material, quantity, tolerance, and finishing requirements.
PDF / STEP / STP / IGS / DXFWhat We Mill
Custom CNC Milled Parts We Commonly Support
CNC milling is suitable for parts with flat surfaces, pockets, slots, holes, contours, mating features, and structural geometry. OUJI helps overseas buyers source practical CNC milled components for prototype validation and small-batch production.
Send 2D drawings or 3D files for a practical CNC milling manufacturing review.
Suitable for custom parts, validation builds, small batches, and repeat orders.
Support for CNC milling, deburring, surface finishing, and inspection needs.
Plates & Brackets
Mounting plates, support brackets, connector plates, adapter plates, and custom structural parts.
Housings & Covers
Aluminum housings, protective covers, machined enclosures, and parts requiring pockets or internal features.
Jigs & Fixtures
Inspection fixtures, assembly fixtures, positioning blocks, tooling plates, and production support components.
Precision Components
Custom precision milled parts with critical holes, slots, threads, locating features, and assembly interfaces.
Part size, material, tolerance, feature depth, surface finish, and inspection requirements are reviewed before production.
Milling Capability
CNC Milling Capacity for Different Part Requirements
OUJI supports 3-axis, 3+2-axis, and selected 5-axis CNC milling arrangements depending on part geometry, material, tolerance, quantity, and finishing requirements.
3-Axis CNC Milling
Plates, brackets, covers, fixture blocks, simple housings, and machined flat parts.
Hard Metal Milling
Steel, stainless steel, and functional mechanical components requiring stable machining.
3+2-Axis Milling
Multi-side features, angled surfaces, side holes, and parts requiring fewer setups.
5-Axis Milling Support
Complex geometry, multi-face machining, curved surfaces, and selected precision parts.
Materials
CNC Milling Materials We Commonly Work With
If you are not sure which material is suitable, send the application, strength requirement, surface finish, and quantity. We can review material options before quotation.
Small-batch and custom drawing-based CNC milled parts.
Aluminum, steel, stainless steel, brass, copper, and plastics.
Flat surfaces, pockets, slots, holes, contours, and mating features.
Aluminum
Common for lightweight housings, brackets, plates, fixtures, and machined components requiring anodizing or cosmetic finishing.
- 6061
- 7075
- 6082
- Custom grade by drawing
Stainless Steel
Suitable for durable precision parts, corrosion-resistant components, fixtures, and functional mechanical parts.
- 304
- 316
- 17-4PH
- Other grades by requirement
Brass / Copper
Used for conductive parts, RF-related components, connector parts, inserts, and custom milled electrical components.
- Brass
- Copper
- Bronze
- Conductive components
Engineering Plastics
Suitable for lightweight, insulating, low-friction, or application-specific CNC milled components.
- POM / Delrin
- PEEK
- PTFE
- Nylon / ABS / PC
Tolerances & Inspection
Practical Tolerance Review Before CNC Milling
For CNC milled parts, we review tolerance requirements together with part geometry, material, wall thickness, feature depth, surface finish, and inspection method.
For general dimensional measurement references, you may also review the NIST Engineering Metrology Toolbox .
Surface Details
Surface Details That Affect CNC Milling Cost and Quality
CNC milled parts often require more than basic machining. OUJI helps review machined surface appearance, burr removal, edge break, threaded holes, inserts, machining marks, and functional surface requirements based on your drawings.
Machined Surface Finish
As-machined surfaces, milling texture, cutter paths, surface roughness, and visible machining marks can be reviewed according to functional and cosmetic requirements.
As-machined / Ra review / cutter marksDeburring & Edge Break
Burrs, sharp edges, and handling risks can be controlled with practical deburring, edge break, chamfering, or radius requirements when specified.
Burr removal / chamfer / sharp edge controlThreads & Inserts
Tapped holes, threaded features, thread depth, thread inserts, Helicoil-style inserts, and assembly-related thread requirements can be reviewed by drawing.
Tapped holes / inserts / assembly threadsAppearance Control
Functional faces, visible faces, machining direction, tool marks, and surface treatment preparation can be discussed before production when appearance matters.
Visible faces / tool path / finish preparationProject Support
How OUJI Supports CNC Milling Projects
From quotation review to machining, finishing, inspection, and shipment, we help overseas buyers manage custom CNC milling projects with practical follow-up.
Drawing Review
We review 2D drawings, 3D files, material, quantity, tolerance notes, and surface finish requirements.
Manufacturing Assessment
We check machining method, material risks, critical features, tool access, finishing impact, and inspection needs.
Production Coordination
CNC milling, secondary processes, finishing, and inspection are followed according to project requirements.
Inspection & Shipment
Key dimensions and project-specific requirements are checked before packing and shipment arrangement.
FAQ
CNC Milling Services FAQ
Common questions from overseas buyers about CNC milled parts, materials, tolerances, finishing, lead time, and quotation requirements.
Need custom CNC milled parts?
Send your drawings and requirements. We will review the project and provide practical manufacturing feedback.
Request CNC Milling QuoteHow fast can you quote CNC milled parts?
For clear drawings and basic requirements, OUJI aims to review CNC milling RFQs within 12 hours. Complex parts, tight tolerances, special materials, or multi-process requirements may need additional technical review.
Can simple CNC milled parts be delivered in 7 days?
Simple CNC milled parts can be fast-tracked from 7 days depending on material availability, quantity, tolerance, finishing, and inspection requirements. We confirm feasibility after reviewing your drawings.
What information should I send for a CNC milling quote?
Please send 2D drawings, 3D files if available, quantity, material, tolerance requirements, surface finish needs, and any special notes related to function or assembly.
Can you support prototype and low-volume CNC milling?
Yes. OUJI supports prototype validation, small-batch production, fixtures, brackets, housings, plates, and custom milled components based on project needs.
What materials can be used for CNC milled parts?
Common materials include aluminum, stainless steel, carbon steel, brass, copper, POM, PEEK, PTFE, nylon, and other engineering plastics depending on the application.
Can you provide tight tolerance CNC milled parts?
Tighter tolerance features can be reviewed case by case based on material, geometry, feature depth, wall thickness, machining stability, and inspection method.
Do you support surface finishing after CNC milling?
Yes. Surface finishing support can include anodizing, sandblasting, plating, polishing, black oxide, deburring, laser marking, engraving, and other project-based requirements.
Can you work from 2D drawings only?
We can review 2D drawings, but 3D files are recommended when the part has complex geometry, pockets, contours, or multi-face machining requirements.