For many overseas buyers, a high‑performance full‑carbon badminton racket is judged not only by the carbon‑fiber modulus rating, but more importantly by its manufacturing process. Ordinary one‑piece integrated rackets come with lower production costs, yet suffer weak torsional resistance at the T‑joint. They are prone to frame collapse under high string tension. Secondary‑forming is the core manufacturing technology behind YODIMAN’s mid‑to‑high‑end rackets, and the key to stable high‑tolerance performance and improved durability.

At YODIMAN’s own factory in Guangzhou, complete workshops cover carbon‑fabric cutting, tube rolling, high‑temperature curing, secondary forming, polishing & painting, stringing and quality inspection. Dozens of interconnected procedures turn plain black carbon prepreg into finished badminton rackets. Every step directly influences hitting performance and service life.

Production starts with carbon prepreg, carbon fiber fabric pre‑impregnated with epoxy resin. Different grades of 40T and 46T high‑modulus carbon prepreg are precisely cut into sheets according to engineering drawings. Fiber orientation and ply thickness are pre‑calculated. Extra carbon‑fiber reinforcements are applied to the frame, shaft and T‑joint area. Minor cutting errors will lead to inconsistent hitting performance in finished goods.

After cutting, the fabric goes to tube pre‑forming. Carbon‑fiber sheets are tightly rolled around metal mandrels to create frame and shaft blanks. Operators must fully squeeze out trapped air between fiber layers; otherwise internal bubbles will cause fracture under stress later. Additional reinforcing carbon layers are wrapped around the T‑joint region to prepare for secondary forming.

Unlike standard one‑piece rackets, YODIMAN secondary‑forming technology cures the frame and shaft separately in the first round of hot‑press molding. The pre‑cured frame and shaft are then assembled. Double‑layer carbon prepreg is wrapped around the joint area before the whole unit goes into molds for a second high‑temperature, high‑pressure compression cycle.

After the second thermal curing, the frame‑shaft connection merges into one solid structure. T‑joint rigidity and anti‑torsion performance are greatly enhanced, effectively lowering the risk of frame collapse caused by high‑tension stringing. This technical advantage enables models in the Tianjing series and other premium lines to safely sustain higher string tensions.

Once high‑temperature molding finishes, racket blanks are ejected from molds. Resin flash is removed by manual and mechanical coarse‑grinding and fine trimming. Precision equipment drills string holes; accurate hole positioning protects grommets and prevents premature hole‑site damage. After grinding and drilling, wooden handles are fitted to complete the mechanical assembly of racket bodies.

Semi‑finished blanks are transferred to dust‑free painting workshops. Primer, putty and repeated sanding are applied, followed by top‑coat spraying and water‑transfer decal printing for YODIMAN logos and model markings. Painted rackets are baked in ovens for full paint‑layer curing. Paint quality safeguards carbon substrates against damage from daily bumps and scratches.

Painting does not mark the end of production. Every racket undergoes strict quality checks: weight, balance point, shaft stiffness and tensile resistance are tested against design specifications. Deformed or defective units are rejected. Qualified products are fitted with grommets and grips, fully assembled and packed for shipment to customers worldwide.

Many buyers focus only on carbon‑fiber modulus figures while overlooking process‑driven performance gaps. Structural reinforcement brought by secondary forming cannot be achieved by conventional one‑piece carbon rackets.

YODIMAN runs complete in‑house secondary‑forming production lines. We supply in‑brand spot goods as well as OEM & ODM private‑label customization for overseas clients. Carbon‑fiber layup, forming parameters, colors and appearances can all be adjusted to match local‑market demands.

From plain carbon prepreg to durable, high‑tension‑resistant finished rackets, secondary‑forming relies on meticulous control across dozens of manufacturing steps. This is why numerous sports brands across Southeast Asia, the Middle East, Europe, America and other regions maintain long‑term OEM partnerships with YODIMAN factory.

For spot‑product specifications, customization lead‑time and MOQ information, please visit our Alibaba International store: Guangzhou Chaoshili Technology Co., Ltd.(https://yodiman.m.en.alibaba.com/?spm=a2700.details.0.0.2c627a11vFqnuu&wx_navbar_transparent=true&wx_screen_direc=portrait&productId=1601615342416&from=detail_company_card) to obtain full‑range product documents and quotations.