Precision Metal Parts Manufacturer in Wuxi China Since 1990
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Quality Control
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Quality Control

We take every project seriously by rigorously monitoring accuracy of measurements, machined parts and performance.

We are ISO 9001:2008 certified and supply custom CNC machined parts to the most complex and advanced industries. Every project is monitored for accuracy of measurements, machined parts and performance, and we provide certification at every stage for compliance and to meet specification.

Inspection Equipment We Use

To ensure the verified precision of your final output, FD Machinery uses the following equipment.

Coordinate Measuring Machine

Dimensional verification of complex geometry against your 3D model or 2D drawing, including first article inspection.

Thread Gages

Go and no-go verification of internal and external threads on machined parts and fasteners.

Ring Gages

Verification of outside diameters and tapers on turned components.

Vertical Measuring System

Height and profile measurement for stacked features and stepped parts.

Micro-Hardness Tester

Confirmation of hardness after heat treatment, carburizing or surface treatment.

Transfer Gage

Fast repeat checking of critical dimensions during a production run.

Three Stage Inspection

  1. First Piece Inspection

    The first part off the tool or programme is fully measured and recorded before the run is released. Nothing runs on the assumption that the setup is correct.

  2. In-Process Inspection

    Operators check critical dimensions at a set frequency during the run using gauges and transfer gauges, so drift is caught early rather than at the end.

  3. Final Inspection

    The finished lot is checked against the drawing before packing, and certification for the stages you require is issued with the shipment.

Measuring and testing equipment in the inspection room
Our Approach

Quality Is a Habit Rather Than a Department

Price is not our advantage and we will not compromise on quality. Parts that are designed well and machined from good materials outlast cheaply made products and are more cost effective over the life of a programme.

Through induction training and regular training our staff maintain a strong sense of quality. That is why we are able to take on the difficult jobs other shops decline, and why our QC team inspects to ensure 100% quality before shipping.

If your programme needs material certificates, plating certificates or inspection reports with the shipment, tell us at the quotation stage so they are planned into the run rather than chased afterwards.

Quality Control FAQ

Are you certified?

Yes, we are ISO 9001:2008 certified, and we provide certification at every stage of a project for compliance and to meet specification.

Do you provide inspection reports?

Yes. First article and final inspection records can be supplied with your shipment. Ask at the quotation stage so it is planned into the run.

How do you inspect threads?

Threads are checked with thread gages, and outside diameters on turned parts are checked with ring gages.

What happens if a part is out of specification?

It does not ship. Our QC team inspects to make sure of 100% quality before shipping, and our zero defect commitment means we would rather remake a lot than send a doubtful one.

Can you verify hardness after heat treatment?

Yes, using a micro-hardness tester, which matters for hardened steel parts and for surface treated components.

Ask For Certification With Your Quote

Tell us which certificates and inspection records your programme needs and we will build them into the quotation.

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