Quality Control

IQC (Incoming Quality Control)

At the IQC stage, we mainly inspect incoming materials from suppliers for appearance, dimensions, tolerances, material, and functionality. Common methods include sampling inspection, drawing comparison, and certificate verification.

Equipment and methods used include:

Calipers, Micrometers: Manual measurement of key dimensions
Height Gauge: Measuring vertical heights
Profile Projector: Inspecting complex profiles and geometric tolerances
Hardness Tester: Verifying material hardness
Function Testers (e.g., continuity testers, air tightness testers): Checking incoming material functionality
Light Box for Visual Inspection: Identifying scratches, color differences, impurities, etc.

Sampling ratios are set according to AQL standards. All incoming materials must pass inspection before being stored in inventory.

IPQC (In-Process Quality Control)

IPQC is conducted throughout the entire production process, focusing on process stability, deviations, and operator consistency to ensure each step outputs qualified semi-finished products. Typical procedures include First Article Inspection (FAI),process patrol inspections, sampling of key dimensions, and full inspection of critical functions.

Common methods and equipment include:

First Article Inspection (FAI): Full dimensional check and confirmation of the first produced piece
Inspection Records: Recording production parameters, test results, equipment status, and process consistency on-site
Calipers, Pin Gauges, Plug Gauges: Inspecting dimensional fits and tolerances
Function Testers (e.g., continuity testers, air tightness testers, automated testing equipment)

We have a dedicated team of professional Quality Engineers (QEs) focused on analyzing and resolving quality issues. They respond quickly to anomalies, lead root cause investigations, implement corrective and preventive actions, and are committed to continuously improving product quality and customer satisfaction.

OQC – Outgoing Quality Control

OQC is the final quality checkpoint to ensure that 100% of outgoing products meet customer specifications. We perform final inspections on appearance, functionality,dimensions, and packaging.

Typical items and equipment include:

Full Visual Inspection: Detecting scratches, deformation, contamination, and assembly defects
Function Test Bench: Simulating customer usage scenarios to verify product functionality
Precision Measuring Tools: Re-checking key dimensions
Weight and Dimension Check: Ensuring packaging complies with shipping requirements
Packaging Acceptance Standard Card: Verifying labels, manuals, and packaging methods
Product Release: Final inspection of the product; release form is filled out after passing