Precision CNC machining · OEM manufacturingTianjin, China · International supply

Quality control

Inspection follows function.

Critical dimensions, datums, fits and documented requirements are identified from the drawing and controlled through the production route.

Bridge coordinate measuring machine inspecting a machined aluminum housing

Dimensional verification

Measure what controls the assembly.

Inspection begins with drawing review. The measurement method is selected according to tolerance, geometry and access. CMM, height, bore, thread, runout, roughness and hardness checks are combined as required rather than applied as a generic checklist.

CMMHeight & BoreRunoutRoughnessHardness
Incoming billet, in-process height inspection and final CMM inspection

Incoming material

Material type, size and available certification are checked against the released requirement.

In-process control

Setup datums and key dimensions are verified before the batch moves beyond correction points.

Final release

Final inspection follows the drawing, order requirement and agreed reporting level.

Rockwell hardness and contact surface roughness verification

Hardness verification

Material condition and specified hardness are checked with a method suited to the part and requirement.

Surface roughness

Functional faces are measured where the drawing controls texture for sealing, sliding or bearing performance.

Drawing review

From your drawing
to a production-ready part.

Include material, quantity, critical tolerances, surface finish and required documents. We will review manufacturability before quotation.

Send Your Drawing