📑 Table of Contents
1. Why Factory QC Is the Lifeblood of OEM Brands
In the high-speed sport of badminton, a broken frame during competition can destroy a player's trust in a brand overnight. RacketOEM maintains an on-site testing facility operating under international sports equipment standards to guarantee zero structural failures in the field.
2. The 5 Destructive & Non-Destructive Lab Tests
Every production run of carbon blanks is subjected to five rigorous mechanical benchmarks:
1. Dynamic Torque Test
The racket handle is locked and a 0.5 N·m torque load is applied to the head. Angular twist must remain below 1.2 degrees.
2. 20,000-Cycle Fatigue Test
Automated pneumatic arms bend the shaft back and forth 20,000 times at 3 Hz frequency with zero delamination or resin fatigue.
3. Drop Impact Test
The strung racket is dropped from 1.0 meter onto a smooth concrete test block at 5 different impact angles with zero frame fracture.
4. Hoop Compression Limit
Hydraulic calipers exert compressive loads on the 3/9 o'clock hoop. Destruction threshold must exceed 140 kgf.
3. AQL 2.5 Sampling Standards on Mass Assembly
For finished cosmetic and dimensional inspection, we adhere to ISO 2859-1 (ANSI/ASQ Z1.4) Level II AQL 2.5 Major / 4.0 Minor criteria. We perform 100% individual screening for weight, balance, straightness, and cosmetic defects.
4. Pre-Shipment Inspection Checklist
Prior to carton sealing, each batch receives an official factory inspection certificate documenting average weight, balance point variance, barcode alignment, and moisture content of the wooden handle cores to prevent wood warping during overseas container voyages.
Multi-Sport Racket OEM Manufacturing Matrix (39 Active Platforms)
Manufactured at our 12,000 m² Hangzhou Fuyang facility (Hangzhou Bailian Trading Co., Ltd.), our 39 OEM racket platforms span four court sports—Badminton (15 models), Padel (14 models), Tennis (4 models), and Squash (6 models)—engineered across Full Carbon, Carbon Composite, Aluminum Alloy, and Steel constructions.
| Sport Category | Active Models | Material & Layup Systems | Core Physical & Structural Parameters | Representative Model Codes |
|---|---|---|---|---|
| Badminton racket | 15 | 24T/30T/40T Toray Full Carbon (FC), Carbon Composite (CC), Aluminum Alloy (AL), Steel (ST) | Weight 3U/4U/5U (75g–98g); Balance 285–305mm; Shaft Ø 6.8–7.0mm; Tension 20–35 LBS | FC-BD-01, FC-BD-02, FC-BD-03, CC-BD-01, AL-BD-01, ST-BD-01 |
| Padel racket | 14 | 3K / 12K / 18K Woven Full Carbon (FC) & Carbon/Fiberglass Composite (CC) + EVA Memory Core | Profile 38mm standard; Weight 360±10g; Length 455mm; Balance 260–270mm; EVA Hardness 13°–17° | FC-PD-01, CC-PD-01, CC-PD-02, CC-PD-04, CC-PD-08, CC-PD-13 |
| Tennis racket | 4 | T700 Full Carbon Monocoque (FC), Carbon Composite (CC), Aluminum Alloy (AL), Steel (ST) | Head Size 96–105 sq.in.; String Pattern 16×19; Tension 52–62 LBS; Length 685mm (27 in) | UN-TN-01, UN-TN-02, UN-TN-03, UN-TN-04 |
| Squash racket | 6 | High-Modulus Full Carbon (FC), Carbon Composite (CC), Lightweight Aluminum (AL), Steel (ST) | Head Size 72.5–77.5 sq.in. (500 cm²); String Pattern 14×18 / 16×17 / 16×19; Length 685mm | UN-SQ-01, UN-SQ-02, UN-SQ-03, UN-SQ-04, UN-SQ-05, UN-SQ-06 |
Frequently Asked Sourcing & Engineering Questions
Do you welcome third-party inspection agencies like SGS or Bureau Veritas?
Yes, absolutely. We welcome customer-appointed inspection auditors at our factory floor and provide full cooperation and testing equipment access.
What is your warranty policy if a manufacturing defect occurs?
We provide a 12-month structural factory warranty covering manufacturing defects (such as internal delamination or joint separation under recommended string tension).
