SC construction lifter series adopt the most advanced technology at home and abroad ,so their structure is rational, operation is simple, convenient and work performance is secure and reliable .Besides that, they adopt component parts of electric apparatus whose brands are famous as well as key fittings of drive mechanism and are cranked our with superior steel which is welded by carbon dioxide gas coverage. This machine set up a variety of secure interlocking device which is reliable and perfect. For instance ,it has switch, protective switch on open circuit, upper and lower limit switch as well as limit switch which are advanced electromechanical interlocking switch, inching safety device which prevents dropping and protective hook for safety.
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