Round Switch: New Choice from Yueqing Tongda for Multi-Scenarios

   In fields such as consumer electronics, smart homes, and industrial equipment, the Round Switch has become a control component that balances functionality and aesthetics, thanks to its advantages of "simple appearance, easy operation, and strong adaptability". Yueqing Tongda Wired Electric Factory, which has been deeply engaged in the switch industry for more than 30 years, focuses on the R&D and manufacturing of Round Switches. It solves scenario adaptation problems through technological innovation, provides customized control solutions for various industries, and has become an important supplier in the round switch field.

   Since its establishment in 1990, Yueqing Tongda has always laid out its product matrix under the guidance of "market demand orientation". In the early days, it mainly focused on general-purpose switches. With the upgrading of equipment design's pursuit of "integrated appearance and humanized operation", the market demand for round switches has continued to grow, as they can adapt to curved panels and save installation space. The factory quickly set up a special R&D team for Round Switches and listed it as a core main product. After years of technical refinement, it has formed a product system covering 1A-15A current and 12V-250V voltage, which can meet the control needs of equipment ranging from micro household appliances to heavy industrial machinery.

   Technological breakthrough is the core competitiveness of Yueqing Tongda's Round Switches. Aiming at the pain points of traditional round switches, such as "poor pressing feedback, weak protection performance, and single adaptation scenario", the R&D team has carried out targeted optimizations: In terms of structural design, it has innovated a "dual-contact linkage structure", accurately controlling the pressing stroke within 0.5-0.8mm to ensure clear feedback and no jamming; In terms of protection performance, it adopts silicone sealing rings and thread sealing technology, and some products have reached IP65 protection level, which can be used stably in humid environments such as kitchens and outdoor equipment; In terms of appearance adaptability, it provides multiple specifications with diameters ranging from 6mm to 25mm, and supports two shell materials (metal and engineering plastic) to meet the design needs of different equipment.

   To meet the characteristics of segmented industries, the factory offers flexible customized services. For the smart home field, it has launched a "light-equipped model" that supports RGB color adjustment and can be linked with the operating status of equipment; For the industrial field, it has developed a "high-load-bearing model" with a zinc alloy shell that can withstand an external impact of 50N, suitable for high-frequency operation scenarios such as machine tools and control cabinets. Previously, the round switch customized for a smart home enterprise, relying on its "ultra-thin design + silent pressing" features, helped the enterprise's products win international design awards and enter the overseas market.

   Quality control runs through the entire production process of Round Switches. In the raw material link, copper contacts and high-temperature-resistant plastics that meet RoHS standards are carefully selected, and each batch undergoes composition and anti-aging tests; In the production link, a fully automated assembly line is introduced to control the coaxiality error of components within 0.02mm, avoiding the impact of installation deviations on use; In the testing link, each switch must pass the "100,000-time pressing life test, high-low temperature cycle test, and insulation performance test" to ensure a 100% factory qualification rate. With strict quality control, the products have passed UL, VDE, and CQC certifications and become long-term suppliers for enterprises such as Midea, Supor, and Chint.

   Facing the industry trend of "intelligence and lightweight", Yueqing Tongda is accelerating the technological upgrading of Round Switches. On the R&D side, it is exploring the integration of touch sensing technology into round switches to realize "touch + pressing" dual-mode control; On the production side, it is promoting the construction of "digital workshops" and realizing real-time traceability of production data through the MES system, improving efficiency by 20%. In the future, the factory will continue to take the Round Switch as the core, adhere to the concept of "precision manufacturing", provide more adaptable and reliable control components for global customers, and promote the innovative development of the round switch industry.