Quality Control System

Precision You
Can Measure

Our ISO 9001-aligned quality control system spans every stage -- from raw material inspection to final shipment. Every batch is validated against international standards for food safety, durability, and dimensional accuracy.

±0.1mm
Tolerance
100%
Full Inspection
15yrs
QC Expertise
01 -- Team & Standards

A dedicated QC team
behind every production line

Each of our 64 production lines is paired with a quality controller holding 5+ years of experience. Together with our QA engineers, lab technicians, and certification specialists, they enforce rigorous, documented standards.

QC Engineers

Define inspection plans, build SOPs and resolve technical quality issues on the floor.

Line Inspectors

5+ years silicone experience. Dedicated to IQC, IPQC and FQC checkpoints.

Lab Technicians

Operate tensile, aging, and food-contact test equipment across every batch.

Compliance Team

Manage FDA, LFGB, RoHS, REACH certifications and client-specific audits.

Reference Standards

International Benchmarks

  • ISO 9001 Quality Management
  • FDA 21 CFR 177.2600 Food Contact
  • LFGB §30 & §31 EU Food Safety
  • RoHS / REACH Environmental
  • AQL 2.5 Sampling MIL-STD-105E
02 -- IQC

Incoming inspection
starts at the source

Every batch of silicone compound, pigment, and auxiliary material is verified against supplier COAs and tested in-house. Non-conforming materials never reach the mold.

01

Supplier Qualification

Approved vendor list with annual audits, COA review and traceable material certificates.

02

Material Verification

Hardness, tensile strength, specific gravity and visual tests on each delivery lot.

03

Food Safety Confirmation

100% food-grade silicone verified for BPA-free, non-toxic, and odor-free compliance.

Incoming material inspection lab
Rejection Rate
< 0.3%
Average IQC rejection on raw silicone compound in 2024.
03 -- First Article & IPQC

First-piece sign-off,
then continuous patrol

Before mass production starts, every mold must pass a signed first-article report. During the run, inspectors patrol each line every 2 hours to catch drift before it becomes a defect.

First Article

Dimensional, visual and functional check against approved sample before mass run.

2-Hour Patrol

IPQC walks every injection line to monitor cure time, flashing and color consistency.

SPC Monitoring

Key dimensions tracked via control charts to detect out-of-tolerance trends early.

Change Alerts

Any mold, material or parameter change triggers a new first-article validation.

±0.1
Dimensional tolerance held to ±0.1mm
Full-automatic silicone injection combined with precision mold technology.
Material toughness improved by 45% for long-term elasticity.
04 -- FQC & OQC

100% final check
before any carton seals

Every unit is visually inspected and measured. Prior to shipment, OQC performs AQL 2.5 random sampling on the sealed cartons -- the same standard trusted by global retailers.

Pre-shipment inspection station

Appearance Inspection

100%

Checks for flash, color deviation, scratches, bubbles and surface uniformity under standard D65 lighting.

Dimensional Measurement

Full / Sample

Calipers, gauges, and 2D projectors verify critical dimensions against drawing specs.

Functional Testing

Per SOP

Tensile, tear, high/low temperature, aging and impact tests validate real-world performance.

Adhesion Check

Printed / Coated

Tape, scratch and solvent tests on silkscreen, UV coating, and adhesive bonding.

Pre-Shipment OQC

AQL 2.5

Carton drop test, packaging integrity, labeling verification and random sampling before container loading. Third-party inspection welcomed.

05 -- NCR & CAPA

When something's off,
we isolate, fix, and prevent

Non-conforming products are physically segregated and tagged. Our 8D methodology drives root cause analysis, rework or scrap decisions, and permanent corrective actions to protect future batches.

Step 01

Isolate & Tag

Defective units are immediately moved to a red-tagged quarantine area with written NCR documentation.

Step 02

Root Cause Analysis

Cross-functional team applies 5-Why and Fishbone diagrams to identify material, mold or process causes.

Step 03

Rework or Scrap

Based on severity, products are either reworked under tighter inspection or scrapped with written approval.

Step 04

Corrective & Preventive Action

CAPA plans update SOPs, mold maintenance schedules and inspector checklists to prevent recurrence.

06 -- Traceability

Every batch,
fully traceable

From raw material lot numbers to the shipment container, every inspection record is archived for at least 3 years. If an issue surfaces post-delivery, we can trace it back to the mold, operator, shift, and material batch in minutes.

3 yrs
Record Retention
< 10 min
Batch Lookup
8 Points
Traceable Data
Digital
ERP Integrated
Batch Record
YMS-2024-A1178
Verified
  • Material Lot SIL-FG-2411-07
  • Mold ID M-CUP-038
  • Production Line Line 14 · LSR
  • Shift / Operator A · ID 2051
  • IQC Report #IQC-2411-312
  • FQC Report #FQC-2411-889
  • Test Certificates FDA · LFGB · RoHS
  • Shipment CTR-MSKU-4451207
QC Documentation Pack

Get our full
quality process documentation

Request our complete QC flow chart, inspection checklists, certification samples and test reports. We'll align with your brand's quality standard before the first mold is cut.

  • QC flow diagram
  • Inspection checklists
  • Certification samples
  • Lab test reports
Request QC Pack Talk to Our QA Team

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