Quality Assurance

  • All parts ordered will be delivered on time, and beyond your expectations
  • Compensation measures are available in case of any quality issues
  • Support online remote check for acceptance Inspection

Quality Standard

Tolerance Standard for CNC Machining

ISO 2768-1 defines general tolerances for linear dimensions as well as angular dimensions in CNC machining, such as external & internal size, step size, diameters, radii, distances, external radii and broken edge chamfers.

This standard covers 4 levels of tolerances.

If specific tolerances are not clearly indicated on the drawing, ISO 2768-mK standards will be followed by default.

  • M – Medium tolerances
  • F – Fine tolerances
  • C – Coarse tolerances
  • V – Very coarse tolerances

Tolerance Standard for Casting

The tolerances of die casting are determined by both the material and the manufacturing method.

The tolerances specification for metal alloy castings are indicated in ISO 8062.

General tolerance grades for castings are (CT) 7 to 12.

The tighter tolerances are available on case by case.

*Manual molding (CT9-CT12)Semi-Automatic molding (CT9)Horizontal molding machine (CT8)Vertical molding machine (CT7)Basic dimension (mm)
4-1142.8 630-1000
4.6-134.63.2 1000-1600
5.4-155.4  1600-2500

Tolerance Standard for Injection Molding

The deviation of injection molded parts from nominal dimensions usually depends on the manufacturing process used.

Therefore, the tolerance requirements need to be taken into account when selecting the process.

DIN ISO 16742 and DIN ISO 20457 will be applied to the tolerance standards for injection molding.

Rigorous Quality Control Process

Our commitment to high quality to our customers comes from the sum of our many years of production practice as well as responsibility to our customers.

Our quality management runs through every step of the process from raw material selection to final inspection.

Quality Reports

To increase your confidence in our custom fabricated as well as prototype parts, we can provide appropriate test reports on request, showing that material quality and product performance meet expected requirements.

Certificates of Conformity

Final certificates by quality auditors that the parts made are in full compliance with the order specifications.

Material Test Reports

Tests exerted on purchased raw materials, such as chemical composition tests, physical property tests, etc.

Full Dimensional Reports

All dimensions of the parts made, especially critical dimensions, will be performed using micrometers, calipers or CMMs.

Material Certificates

Require material suppliers to issue material certificates for each batch, which can effectively trace the source of materials.

Inspection Reports

Through multiple strict quality inspection procedures, the defect rate is effectively avoided or minimized.

FAI Reports

First article inspection ensures quality consistancy in volume manufacturing by verifying specifications in advance.

Assurance Terms

We are committed to providing you with excellent service to boost your business.

To address your concerns and show our sincerity and ability, in case that the orders fail to cater to your expected requirements, we will process a rework or refund without hesitation.

The wishes of our clients will be put first.

Terms for Reprocess

  • Unacceptable surface defects
  • Fail to cater to specified tolerance criteria
  • Unqualified materials

Terms for Refund

  • The part can not be reprocessed
  • Rework can not be accepted
  • Other reasons