Release basis
Confirm the drawing/model revision, material or resin identity, quantity, finish, delivery basis and open technical dispositions before manufacturing release.
Precision machining
CNC machining in China, controlled through Europe.
PartVerity coordinates drawing review, process-fit supplier selection, production follow-up and inspection evidence for custom milled and turned parts.
Process control
The route is agreed before production is released.
Every CNC project starts with the accepted model and drawing revision. We align the manufacturing route, material, critical characteristics and inspection method before production release.
01
Drawing and model review
02
Material and critical-feature confirmation
03
Machining-route and supplier selection
04
DFM closure and production release
05
First-off or first-article review where specified
06
Dimensional inspection and controlled release
Materials
Material identity stays connected to the drawing.
The examples below indicate common project families, not permission to substitute a specified grade. Availability, origin, certification and traceability requirements are confirmed in the quotation basis.
01
Aluminium
6061, 6082, 7075
02
Carbon & alloy steel
Drawing-specified machinable grades
03
Stainless steel
303, 304, 316 and project-specific grades
04
Copper alloys
Brass and selected copper grades
05
Engineering plastics
POM, PA, PC, PTFE, PEEK and specified polymers
Tolerance approach
Capability follows the feature.
Unspecified dimensions may be quoted on an ISO 2768-m basis when appropriate. Tighter geometric or dimensional requirements are reviewed feature by feature against geometry, material, process, inspection method and volume. The accepted drawing revision and agreed inspection plan remain controlling.
Lead-time planning
Dates are committed after technical closure.
Simple prototypes and low-volume batches may be planned from approximately 7–15 business days after DFM closure, material confirmation and order release. Production batches commonly require approximately 3–6 weeks. Geometry, raw material, finishing, inspection and logistics determine the committed schedule.
Manufacturing in China
A sourcing route built around engineering evidence.
For engineering and procurement teams sourcing CNC machining in China, the main risk is rarely the cutting operation alone. Material identity, drawing interpretation, revision discipline, process capability and inspection evidence all influence whether the delivered custom machined parts are usable.
PartVerity provides one European project interface for CNC prototypes, low-volume machining and repeat production. We structure open technical questions before supplier release and connect the inspection scope to the features that matter for fit, function and assembly.
Final capability, tolerance, material documentation, inspection scope and timing are confirmed per drawing and project—not by website copy alone.
Decision-stage engineering
Release the next commitment only when its evidence is visible.
Each gate connects the accepted requirement to a named reviewer, a project record and an explicit decision. These controls describe the coordination model; the project quotation defines the actual scope.
Inspection context
Identify the characteristics that drive fit, function, appearance or assembly and agree how, when and by whom their evidence will be reviewed.
Change authority
Keep DFM proposals, substitutions, deviations, rework and schedule effects attached to a numbered request and authorised response.
CNC engineering resources
Move from a machine label to a controlled technical decision.
Use these focused guides to close process route, tolerance, material, finish and DFM questions. Every guide links back to this commercial CNC owner and to a context-preserving RFQ route.
Frequently asked questions
What the page can clarify—and what still needs project evidence.
Answers state the coordination basis without promising universal capability, timing or acceptance.
01Which files are needed for a CNC machining quotation?
Provide the controlled 3D model, drawing revision, material and condition, quantity, finish, critical characteristics, inspection requirements and required delivery point. Missing inputs are recorded as RFQ questions rather than assumed.
02Can PartVerity confirm a machining tolerance from the website?
No. Tolerance capability is reviewed feature by feature against geometry, material, setup, process route, quantity and measurement method. The accepted quotation and inspection basis govern the project.
03How is CNC material identity controlled?
The exact grade, condition, governing specification and required certificate or lot traceability are defined before release. Any proposed substitute remains a documented change request until authorised.
Start a controlled RFQ