Lub luag haujlwm tseem ceeb ntawm lub winch yog nqa lossis rub cov khoom hnyav. Nws yog ib lub teeb lifting khoom uas muaj peev xwm vertically nqa, horizontally los yog obliquely rub cov khoom hnyav los ntawm winding steel hlau ropes los yog chains nyob ib ncig ntawm lub nruas. Windmills yog dav siv nyob rau hauv cov teb xws li kev tsim kho, kev txuag dej engineering, hav zoov, tsuas, thiab docks, rau cov khoom lifting los yog tiaj tus towing. Muaj ntau hom winches, suav nrog phau ntawv winches, hluav taws xob winches, thiab hydraulic winches, nrog hluav taws xob winches yog hom tseem ceeb. Nws tsis tuaj yeem siv nws tus kheej nkaus xwb, tab sis kuj tseem yog cov khoom siv hauv cov tshuab xws li nqa, kev tsim kho, thiab mine hoisting. Lub winch yog dav siv nyob rau hauv ntau lub sijhawm uas cov khoom hnyav yuav tsum tau thauj khoom vim nws txoj haujlwm yooj yim, ntau txoj hlua winding, thiab kev txav chaw yooj yim. cov
