Send a drawing and the critical tolerances. Engineering sends an initial response within one business day and confirms the quotation schedule after review.
Discuss your partAbout Tecpreva CNC
A CNC manufacturing partner connecting drawings, machining and inspection.
Tecpreva CNC is the international-facing brand of Taizhou Tecpreva Precision Manufacturing Co., Ltd., based in Taizhou, Jiangsu, China. We review CNC part requirements with engineering and procurement teams, from material and process selection to first-article inspection and delivery planning.
How we work with buyers
What is controlled from quotation to delivery?
Manufacturing suitability is established from drawings and agreed acceptance criteria. The workflow below explains the technical decisions, inspection checkpoints and documents to confirm before placing an order.
Engineering understanding
Drawing review, material confirmation and tolerance discussion happen before the quote is final — not after.
Process control
FAI, in-process CMM, lot-level material traceability and final inspection are planned against the agreed control scope.
Communication
Confirm a project contact, clarification log and update schedule so drawing changes, inspection questions and delivery risks have a clear route for resolution.
Procurement fit
We focus on mature parts, repeat production, second-source qualification and cost-down redesign — not every part of every project.
Manufacturing workflow
From drawing review to inspected delivery.
- 01
Drawing and requirement review
Confirm revisions, critical dimensions, material and acceptance criteria.
- 02
Material and process planning
Review raw material condition, machining route, fixtures and finishing requirements.
- 03
First-article verification
Agree inspection coverage and approve the first article before expanding production.
- 04
In-process control
Check agreed critical features, maintain batch identification and record deviations.
- 05
Final inspection and records
Verify the accepted drawing revision and prepare the agreed inspection package.
- 06
Packing and delivery planning
Protect functional surfaces and confirm shipping documents, destination and handover requirements.
Global footprint
Closer than you think.
Manufacturing partners across two time zones, shipping under one engineering team.
- 1workshop, one engineering chain
- 3 / 4 / 5-axismilling routes; see equipment inventory
- 1000+ m²factory floor under one quality system
- 2+automated production lines
- 50+countries served
- 1 business dayinitial engineering response
Who we work with
Trusted across industries.
Each industry has its own review checklist and we apply it from the first quote.
- 01
Robotics
Drivetrain housings, end-effector mounts, sensor brackets.
- 02
Medical devices
Instrument housings, fixtures, equipment interfaces and inspection records.
- 03
Semiconductor
Vacuum-chamber parts, wafer-handling fixtures, ESD-safe tooling.
- 04
Aerospace
Structural fittings and ground-support tooling, subject to project-specific documentation review.
- 05
Controlled projects
Restricted or export-controlled technical data is reviewed through an agreed controlled process, not the public upload form.
- 06
Consumer hardware
From limited runs to keep-alive spares for products shipped years ago.
Quality documentation
Requirements confirmed before production.
We confirm the applicable documentation, evidence and acceptance criteria in the quotation or quality agreement.
- QMSQuality management documentsConfirm certificate scope and validity before supplier qualification.
- CUSTOMERCustomer quality requirementsProject-specific documentation and approval requirements are reviewed before order acceptance.
- ACCESSDrawing and information controlsConfirm NDA, access restrictions and file-sharing requirements before sending controlled drawings.
- RoHSMaterial and finish declarationsSpecify required declarations and the applicable material or finish during quotation.
- REACHSubstance documentationConfirm required supplier declarations and project scope.
- INSPECTIONInspection and conformity recordsAgree report scope, batch identification and acceptance criteria before production.
Quality without guesswork
Evidence at every critical point.
Inspection coverage is agreed before production. The records below ship when specified in the quotation or quality agreement.
First-article inspection
Agree the first-article format, drawing revision and measured characteristics before machining. The report ships with the sample or first batch when specified.
In-process inspection
Tight-tolerance features can be measured during production, not only at final inspection. The sampling plan is confirmed in the quotation.
Surface and hardness checks
Roughness and hardness checks are available when specified. Method, sampling and report format are confirmed before production.
Traceability records
Material certificates, inspection summaries and batch identification are included when specified — not assumed on every order.
Project responsibility chain
Who owns what on your project.
Four roles, one project owner. Each role commits to a concrete deliverable so you know who to call and what you will get.
- Before steel is cutEngineering
- DFM note flagging chamfer, undercut, draft and tolerance issues against your STEP.
- Material grade confirmation against the operating environment you describe.
- Written quote with inspection plan and realistic lead time.
- On every batchQuality
- First-article inspection report against your print, signed by the reviewer.
- In-process CMM on tight-tolerance features — not only at end of batch.
- Material certificate (EN 10204 3.1) and surface-finish log on request.
- Throughout productionProject coordination
- Single named owner per project, reachable within one business day.
- Proactive update at FAI, mid-batch and pre-shipment milestones.
- Written acknowledgement on every revision, quantity or schedule change.
- From dispatch to dockLogistics
- Export-friendly packaging with lot label, weight and dimension paperwork.
- Commercial invoice, packing list and certificate of conformance on request.
- Shipment photos and tracking number shared before the delivery ETA elapses.
Project fit
Where we add the most value.
Not every project fits. Telling you up front saves both of us time.
- Mature parts with a released revision — quote-to-shipment is short and predictable.
- Repeat production where dimensional drift between lots must be controlled.
- Second-source qualification where the current supplier carries delivery or quality risk.
- Cost-down redesign where material, finish or volume change the unit economics.
Where we are not the right fit.
- Single-unit R&D parts where price dominates over process control.
- Castings, forgings or sheet-metal work — we machine from solid.
- Parts outside our typical envelope or with tolerances beyond our calibrated chain.
Evidence, not assertions
Records that can be confirmed for your shipment.
The records below are confirmed during quotation and project launch. Actual scope follows the drawing, order and agreed quality requirements.
- First-article inspection reportFull dimensional layout against your print, signed by the engineer who reviewed the part.
- Material traceabilityMill certificate with heat number traced to the raw stock your lot was cut from.
- Surface-finish and hardness logProfilometer or hardness readings on request, performed in our metrology lab.
- Certificate of conformanceDrawing-revision CofC is issued when included in the agreed shipment scope.
- Project archiveQuote, drawing revision log, FAI reports and inspection summaries retained per project.
Two ways to start
Tell us what kind of project this is.
Send a STEP and we return a written manufacturability note before you commit to a PO.
Request a DFM review