Your Global Partner for Quality CNC Machining Services in China

After you upload your CAD or drawing, senior machinists check key items like geometry, tolerances, wall thickness, tool access, radii, threads, and material behavior.

If we spot risks, we’ll send clear, practical recommendations—design tweaks, tolerance guidance, machining approach, and material options—to ensure stable, repeatable manufacturing.

This early review helps prevent redesigns, reduce cost, and speed up production. Send your file and get feedback in 12–24 hours.

Our lead time is determined by part geometry, tolerance requirements, finishing needs, and order quantity. Most CNC-machined prototypes ship within 3–7 working days, while more complex components or multi-process assemblies may require additional time.

Small batches often follow a similar schedule, and we also offer expedited machining for urgent projects. To provide an accurate timeline, simply send us your 3D/2D drawings, material, and quantity — our engineers will confirm a precise lead time during the quotation process.

Yes. AT-Machining offers a full range of documentation to support both standard and high-precision projects. Upon request, we provide material mill certificates, RoHS/REACH compliance, and traceability reports for all metals and engineering plastics we source.

For quality verification, we supply detailed dimensional inspection reports, CMM measurements, hardness and material-property tests, surface-finish checks, and First Article Inspection (FAI) documentation.

If your application requires higher assurance—such as aerospace, medical, or safety-critical components—we can also arrange third-party testing through accredited laboratories. All reports can be included digitally before shipment for fast engineering review.

CNC machining pricing is primarily driven by machining time, which depends on part geometry, tolerances, and material machinability. Additional factors such as fixture design, tool paths, surface finishing, and inspection requirements also influence the final cost.

At AT-Machining, every quotation is calculated by experienced engineers who evaluate the most efficient manufacturing strategy—optimizing tool selection, feeds and speeds, and setup operations to minimize unnecessary machining hours. This engineering-driven approach ensures accurate and highly competitive pricing, especially for aluminum, steel, brass, and small-batch production.

Material cost, finishing processes, and order quantity are included transparently in the quote. You can upload your 3D/2D files to receive a detailed cost breakdown and a cost-optimized manufacturing plan tailored to your project.

At AT-Machining, every part receives strict dimensional checks, material verification, and final QC approval. Critical features are inspected 100%, and reports can be provided for confirmation, minimizing the chance of nonconforming parts leaving our facility.

If a delivered part ever fails to meet specifications, we follow a clear and responsible engineering review. Customers may submit measurement data, photos, or CMM results, and our quality team will analyze the issue within 24–48 hours to identify the root cause.

We take full responsibility and provide the appropriate solution—remake, rework, refund, or credit—while documenting CAPA actions for traceability. Each case supports continuous improvement.

Our promise: If a part doesn’t meet spec, we make it right.