Regular manufacturers need to conduct a life test on each wire rope electric hoist they manufacture. So what is the basis for determining the service life of wire rope electric hoists? Are there any specific standards?

　　The answer is yes!! EN144922:2006+A1:2009 (E) Appendix G (hereinafter referred to as EN144922 Appendix G) is a standard that specifically describes the life test methods of electric hoists. In order to better use the life test methods to achieve the purpose of verifying design, it is recommended that under the basic principles and conditions of GB/T3811-2008, JB/T90082, various testing units can refer to the application of EN144922 Appendix IG and FEM9683:1995 (E) standards to design a reasonable life test plan. The appendix of EN144922 provides multiple methods for the life test structure of the lifting mechanism. The test unit selects the structure scheme for the test according to its own test conditions, and calculates the corresponding load change factor according to the selected test method to determine the test load to be applied and the total test operation time. The method of testing the service life of wire rope electric hoists can help manufacturers better test product quality. Understanding relevant national regulations can promote manufacturers to strictly control quality.