Quality and certification

Quality is not caught at the last inspection — it is managed in every operation. Every batch leaves with its paperwork: the approved drawing, the material certificate, the inspection record and the packing list.

  • ISO 9001 · certified 2017
  • 15 dedicated QC inspectors
  • Dozens of national patents
  • 4 documents with every batch
Our quality principle

No part leaves the workshop out of tolerance

A guide is a wear part: one that drifts and the whole line stops. So we fix the standard before production starts, and we put inspection inside the process — not at the despatch door.

The standard is agreed before we machine

Drawing, material, hardness and the inspection plan are confirmed with you before production starts.

Inspection sits inside the process

Dimensions are checked during machining and critical faces re-verified on the CMM, so out-of-tolerance parts are stopped before heat treatment.

Every part marked, every batch filed

Each part traces back to its heat number, its operations and its inspection record.

The paperwork travels with the goods

Approved drawing, material certificate, inspection record and packing list leave with the batch.

Inspection on the floor

Quality you can see

Asian CNC operator setting up and running a machining centre
CNC machining and machine operating
Worker grinding a large metal part with sparks
Working faces ground and finished
Engineer measuring a machined part with a caliper
Measuring a machined part with a caliper
Process control

How one batch is controlled

01

Technical requirements and drawing

Drawing, sample or OEM number. Key dimensions, material, hardness and the inspection plan are confirmed with you before production starts.

02

Material control

Incoming steel is recorded by heat number. Material certificates are filed per order and can travel with the goods.

03

Machining and in-process inspection

Dimensions are checked during machining and critical faces re-verified on the CMM. Wear-face hardness is tested after heat treatment to the agreed specification.

04

Final inspection, marking and release

Dimensional, hardness and visual final inspection, every part marked, records filed by batch. Fumigated cases, labels and packing list, with loading photographs before despatch.

Inspection and documents

What we check, and what travels with the goods

What we check

  • Dimensions — critical faces re-verified on the CMM; batch parts to the agreed gauges and sampling plan
  • Hardness — wear faces tested to HRC 58–62, HRC 60+ where the duty requires
  • Dynamic balance — rotating assemblies checked in house
  • Material traceability — recorded by heat number, certificates issued per order
  • Records — filed by batch, supplied with the goods

What travels with the goods

  • Approved drawing — the dimensional drawing of the part, confirmed before production
  • Material certificate — steel grade and heat number
  • Inspection record — dimensional and hardness results for the batch
  • Packing list — part numbers, quantities and case marks
  • Export documents — invoice, packing list, HS code and sea/Air waybill

Want to see what our inspection record actually looks like? Send the part number or order you care about and we will send you a sample.

Request a sample inspection record
FAQ

Acceptance and quality questions

Can you supply material certificates with the goods?
Yes. Incoming steel is recorded by heat number and material certificates can be issued per order.
To what standard is hardness accepted?
To the specification confirmed in the quotation and drawing — typically HRC 58-62 on wear faces, and above HRC 60 where the duty requires it.
Can we inspect before despatch?
Yes. Appoint a third-party inspection agency, or inspect at our works in Anhui before despatch. Either way you get inspection records, loading photographs and the documents required.
What if a part fails in service?
Send photographs and the operating conditions and we will analyse the cause with you. Where the cause is ours, we replace or rework the part and follow up on the service life of the replacement.

Need a specific technical document?

Tell us the order or the part range and we will send the matching drawing, material certificate and inspection record.

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