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Joyce Jacks, Actuators & Systems - 9253 Ball Screw Jack & Ball Screw Comdrive Column Load ChartE N G I N E E R I N G 1-800-523-5204 Visit our website now for 2D and Interactive 3D models of all our Jacks and Actuators. www.joycedayton.com I N F O R M A T I O N —(Pounds)C O L U M N L O A D I N GScrew Length (inches)This chart includes a 2:1 Factor-of-Safety based on the Euler-Johnson equation for column loading (Oberg, Erik et al: Machinery’s Handbook, 24th Edition. c. 1992 Industrial Press Inc.)The horizontal portion of each line represents the jack’s maximum dynamic capacity. Under static conditions, these lines can be exceeded. Please contact factory for assistance. |