Hangzhou Spring Co., Ltd.

The railway damping spring produced by Hangzhou Spring Co., Ltd. won the Outstanding New Product Award of the China General Machinery Parts Industry Association, and the railway locomotive bogie spring won the Outstanding New Product Award for Independent Innovation in the Spring Industry of the China General Machinery Parts Industry Association. The company produces railway signaling system springs, shock absorber springs, bogie springs, brake springs, etc., with steel wire diameters...
As the railway speed increased, the shock absorbers of the two carriages were changed from the original tension springs to compression springs. Due to the increase in speed, its safety and reliability indicators have been greatly improved. Hangzhou Spring Co., Ltd. analyzed high-precision engineering machinery springs to improve its manufacturing accuracy and inherent quality level.
Determine the optimal point due to the problems caused by the extremely high compression and stress of this spring. Due to the small number of effective turns, a set of effective process control parameters was found. Through the performance tests and running-in tests of the complete machines assembled by multiple manufacturers in the railway sector, it plays a supporting role in the development and manufacturing of EMUs that increase railway speed (reaching speeds per hour).
The company has been reviewed by the Zhejiang Quality System Audit Center and obtained the certification certificate. It passed the Swiss Company Quality Management System Certification in March. It also passed the Swiss Company/: Quality Management System Certification in March. Credit rating. Passed the quality, environment, and occupational health and safety management system certification of Wantai Certification Company:/:/ in the year and won the "Measurement and Inspection System Qualification Certificate" issued by the Hangzhou Municipal Bureau of Quality and Technical Supervision in the year and month. In 2016, the valve spring won the title of National User Satisfaction Product. The valve spring, hydraulic spring, and truncated cone scroll spring series products produced by our company were officially selected into the catalog of famous, excellent, and new electromechanical products. The company's research institute was recognized as a technology center by Yuhang District. The Japanese company was awarded the "Standardization Good Conduct Certificate" by the Hangzhou Quality Standards Technology Assessment Center. In the year, the company was awarded the Yuhang District Quality Management Demonstration Unit and the On-site Management Demonstration Unit. In the year, the company was awarded the Lan Lingpai Spring was awarded the Yuhang District Famous Brand Product, the company was awarded the title of Harmonious Labor Relations Enterprise in Gongshu District, and was awarded the title of Advanced Enterprise for Scientific and Technological Innovation in Xingqiao Street. It was awarded the title of Advanced Independent Innovation Enterprise of the Year by China General Components Industry Association. Won the annual Yohander Best Quality Award. In 2007, the company was recognized as the Hangzhou Enterprise Technology Center by the Hangzhou Economic Commission. In 2016, the company won the titles of Yuhang District Harmonious Labor Relations Enterprise and Xingqiao Street Scientific and Technological Innovation Advanced Enterprise. In March of this year, the Japanese company obtained the measurement management system certification certificate from Zhongqi Metrology System Certification Center. The company's valve springs, hydraulic parts springs, hot coil springs, and high-precision clutch spring series products were included in the "Famous, Excellent, and New Mechanical and Electrical Products Catalog" in the year and month. The company was awarded the honorary title of Hangzhou High-tech Enterprise in the year and month. Company/:Quality management system version certification. Passed the Wantai Certification Company in the year: /:/: quality, environment, occupational health and safety management system version change audit. In the year, the Lanling brand internal combustion engine valve springs with bore sizes below passed the national user satisfaction product re-evaluation. In the year, the company's Lanling brand spring passed the Yuhang The district's famous brand products were re-evaluated. In 2016, the company won the first prize of Hangzhou Technical Standard Award and the Zhejiang Province Standardization Demonstration Enterprise. In 2016, the company was listed as the most promising small and medium-sized enterprise in Zhejiang Province. It was approved as a high-tech enterprise in key national support fields in 2018, applied for next year's national torch project in 2018, won the famous trademark of Yuhang District in 2018, and obtained the standardized good conduct certificate in 2018. Passed the R:R International Railway Industry Management System Certification in January and passed the Swiss Company/: Quality Management System Certification Renewal Audit in January. In March 2019, Hangzhou Spring Co., Ltd. was awarded the title of Specialized Enterprise, and in March 2019, it passed the Wantai Certification Company: Occupational Health and Safety Management System Version Certification. Passed the certification renewal audit of Wantai Certification Company in March: /:/: Quality, environment, occupational health and safety management system certification renewal audit, passed the certification renewal audit of Dekai Wantai Certification Company R: R International Railway Industry Management System in March, passed the certification renewal audit in March Dekai Wantai Certification Company/: Quality management system certification renewal audit.