Stage 1
Product Testing
Before mass production, every new design undergoes extensive testing on 2-3 prototype samples. Our testing standards are based on years of market feedback, industry benchmarks, and can be customized to your requirements.
Quality Control
Quality Control 鈥?3-Stage System, Zero Compromise
Quality at DRACO is not a final inspection step. It's built into every stage of manufacturing 鈥?from raw material receipt to final wheel truing.
Three-stage QC System
Product testing, in-process self-checking, and QC inspection
Quality at DRACO is built into every stage of manufacturing, from raw material receipt to final wheel truing.
Stage 2
In-Process Self-Checking
Our production team performs quality verification immediately after each manufacturing step:
Stage 3
QC Inspection
Inspection nodes verify raw material, curing, trimming, final rim quality, and final wheelset quality.
Stage 02
In-Process Self-Checking
| Production Stage | Checkpoint | Inspection Content |
|---|---|---|
| Material Preparation | FIFO system | Each prepreg sheet is marked with cutting date (week + day), first in first out. |
| Material Preparation | Total weight inspection | Total weight is measured after all prepreg for one rim is cut to prevent material errors. |
| Layup | Weight measurement | Prevents layup errors. |
| Layup | Critical area inspection | Bead seat and sidewall transition areas are checked to ensure no bubbles or delamination. |
| Molding | Mold cleaning | Molds are thoroughly cleaned before each use. |
| Molding | Curing oven inspection | Heating and cooling functions are checked regularly, with parameters adjusted by season. |
| Molding | Blank weight | Confirms resin flow rate and curing setup consistency. |
| Drilling | Drill bit replacement | Drill bit is replaced every 40 rims. |
| Drilling | Post-drilling weight | Verifies material removal amount. |
| Trimming & Painting | Rough processing weight | Avoids over-processing. |
| Trimming & Painting | Roundness check | Ensures geometry accuracy. |
| Trimming & Painting | Appearance inspection | Paint surface and decal quality. |
Stage 03
QC Inspection
| Inspection Node | Inspection Content |
|---|---|
| Pre-Production | Raw material quality and quantity check; carbon prepreg short-beam shear strength test (ASTM-D2344). |
| Post-Curing | Blank weight and flatness; abnormal noise and bladder leak check. |
| Post-Trimming | Post-trimming weight; burrs, residue, and hole accuracy check. |
| Final Inspection — Rim | Inflation test (150 psi); net weight; appearance; hole diameter; hole count; noise; decal and label; water-transfer position. |
| Final Inspection — Wheelset | Spoke tension and balance; wheelset runout/centering; roundness and flatness. |