ZHEJIANG SANHE SPRING CO., LTD. is a leading compression spring, disc spring and wave spring company. The company has passed ISO9001, ISO14001 system certification and has more than 30 national patents. It has nearly 20 years of spring manufacturing experience since 2003. Committed to the design, development, manufacturing and sales of high temperature and corrosion resistant springs. There are more than 80 employees, including 5 senior titles. The registered capital is 1 million US dollars and the plant area is 5000 square meters. We owns two brands: SANHE and SIPLEE. Every year, more than 20 million springs are delivered worldwide, and the turnover is as high as 10,000,000 US dollars.Specializes in the production of valve springs, high temperature springs, disc springs, wave springs, corrosion-resistant springs, leaf springs, special-shaped springs and other products. Stock materials are Inconel x-750, Inconel 600, Inconel 625, Inconel 718, 17-7PH, 17-4PH, 15-7MO, Monel K500, UNS R30003, Hastelloy C-276, No8020, CR5, 316, 304, 60Si2MnA , 50CrV4, 55CrSiA, 65Mn, etc.Apply to petroleum, chemical industry, ndustrial machine, mold&components, automatic equipment, toy, electric appliance, clamping fixtures in a furnace operation. Satisfy with working condition in high temperature upto 800 degree and corrosion resistant in sea water.
2003 Yongjia Sanhe Spring Co., Ltd. was founded
2009 Obtained ISO9001 certification
2012 Established Sanhe R&D Center
2013 The hot coil assembly line put into production
2014 Through ISO-14001:2004 Environmental Management System
2015 600°C high temperature spring enters mass production
2016 Occupy the European and American markets
2017 Obtained invention patent for high temperature resistant valve seat anti-clogging spring
2019 Dust-proof high-efficiency buffer springs put into production
2020 Drafting the national standards, corrosion-resistant alloy wire rod and wire GB/T 37607-2019 officially implemented
2021 Upgraded to Zhejiang Sanhe Spring Co., Ltd. and moved into the new factory
2022 New heights are about to start
U.S.A, England, Spain, Germany, Italy, Switzerland, etc.
24-hour technical support hotline, Technical quality consultation, reply within 24 hours. Provide more and better solutions for free. Provide various forms of after-sales service free of charge within the warranty.
Please provide spring parameters, as temperature, material, outer diameter, wire diameter, height, number of turns, spring rate, etc., preferably with drawings.
Confirmation of delivery, payment, transportation plan, etc.
step 1、Mechanical Chemical composition analysis and Mechanical properties testing.
step 2、Spring CNC forming
step 3、Heat treatment (atmosphere protection box type electric furnace, continuous electric furnace)
step 4、CNC spring end face grinding
step 5、Pressure Set
step 6、Hardness testing
step 7、Size Inspection、characteristic detection、fatigue test
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