How our Anhui & Zhejiang procurement desk verifies feather symmetry, glue curing, cork bonding, racket weight tolerances and export carton CBM before your order leaves China.
Reviewed by Shuttlecock Supplier Technical & QC Desk · Anhui & Zhejiang Supply Chain · Last updated October 31, 2026 · BWF Standard Reference
| Inspection Checkpoint | Target Technical Tolerance | Defect Classification | Verification Method |
|---|---|---|---|
| 01. Feather Grade & Whiteness Uniformity | 16 matched feathers per shuttle; uniform shaft thickness and clean vane trim | Major if mixed species or cracked rachis | Visual & calliper check across random tubes per carton |
| 02. Cork Head Bonding & Skirt Diameter | 65 – 68 mm skirt diameter; concentric cork base with zero leather peeling | Critical if cork separates on impact | Gauge ring measurement + manual torsion & smash test |
| 03. Shuttlecock Weight & Speed Code | 4.74 – 5.50 g total weight; ±0.05 g within tube; matches ordered speed (75–79) | Major if wrong speed code or >0.15 g drift | 0.01 g digital scale + regulation baseline flight test |
| 04. Resin Glue Curing & Stitch Thread | Continuous resin bead around all 16 feather ribs; no excess glue droplets | Minor/Major depending on flight wobble | 360° internal skirt inspection under bright light |
| 05. Racket Weight, Balance & Tension Rating | Unstrung weight within ±2 g of 3U/4U brief; balance within ±3 mm; clean paint | Major if weight class or grip size mismatches | Digital gram scale + balance board + cosmetic audit |
| 06. Export Master Carton & Moisture Packing | 12 shuttles/tube, 50 tubes/carton (~67×35×41 cm, ~11 kg); intact inner polybag | Major if damp cartons or mislabelled speed | Carton drop check, gross weight & shipping mark tally |
Generic third-party inspectors trained on apparel or electronics rarely know how to distinguish full-round Cigu duck from washed water duck, or how to spot uneven glue curing that causes a shuttlecock to wobble after three rallies. A badminton-specific check brief verifies feather shaft stiffness, 16-feather spacing symmetry, cork leather wrap adhesion and actual court flight stability before cartons are sealed.
When you order from our 27 Huiyu shuttlecock catalogue, you buy through Direct Product Supply (0% agency fee). When you already have your own badminton factories in China and want local specification follow-up, QC coordination and consolidated shipping, our Basic plan charges 5% of product value (minimum US$100/order, US$0 annual fee). When you want us to source across our vetted Anhui and Zhejiang factory network, Pro costs US$200/year with 0% additional service fee.
Shuttlecock factories in Anhui/Zhejiang specialize in feather processing, while carbon racket frames, nylon multifilament strings and polyurethane overgrips are produced in specialized equipment plants. Consolidating cartons from 2 to 4 specialist workshops into one LCL sea shipment or air cargo booking cuts customs brokerage fees and lowers landed freight cost per unit.
Direct engineering and procurement answers for international buyers.
Pre-shipment inspection should be conducted when at least 80%–100% of the tubes are packed into export cartons, prior to final balance payment and forwarder pickup.
Yes. Basic (US$0 annual fee, 5% order fee with a US$100 minimum) is designed specifically for international buyers who already have supplier relationships in China and want local specification tracking, QC coordination and shipment consolidation.
Use our online Shuttlecock Carton & Volume Planner (/bulk-planner/) to calculate shuttlecock carton CBM (m³ / cu ft) and gross weight (kg / lbs), then share your racket, string or bag quantities in your enquiry so we can compute the combined shipment totals.
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