Efficient Mass Production of Toys with Quality Assurance

Project Background

An overseas client specializing in the import and export of folk toys was in urgent need of a large purchase of small plastic Chinese yo-yos (diabolos) on the eve of the Spring Festival. Measuring 60mm in diameter, these products were designed for children and entry-level players with an all-plastic structure. As a traditional Chinese folk toy, demand surged overseas during festive seasons, resulting in extremely high consumption volumes. The client required delivery of 3 million units before the Spring Festival, while ensuring the diabolos produced clear and stable sound, well-balanced rotation, and high drop resistance, with dimensional deviations controlled within 0.03mm. Previously, due to difficulties in balancing mass production speed and product quality, the client had failed to reach satisfactory cooperation with multiple manufacturers. After undertaking the order, our team focused on overcoming the dual core challenges of large‑scale mass production and quality control to guarantee on‑time delivery.

We optimized the injection molding mass production process. Based on the structural characteristics of the all-plastic diabolos, we adopted a multi-cavity mold design, with one mold capable of forming 12 diabolos simultaneously. Combined with an automated production line, we realized full-process automation from injection molding and assembly to inspection, reducing manual intervention and greatly improving production efficiency. At the same time, we established a full-process quality inspection mechanism, focusing on testing the acoustic cavity, whistle precision, and rotation balance of the diabolos. We also installed online inspection equipment to screen defective products in real time and prevent substandard parts from entering the next process. In the end, we completed the production and delivery of 3 million diabolos in just 25 days, meeting the client’s shipping demand before the Spring Festival five days ahead of schedule. The product qualification rate remained above 99.8%. We not only ensured the efficiency of large-volume supply but also guaranteed product quality, helping the client seize the overseas festive market and gaining high recognition and long-term cooperation intention from the customer.