Cov haujlwm tseem ceeb ntawm DC chuck yog ua raws li txoj cai ntawm electromagnetic induction. Thaum cov hluav taws xob ncaj qha dhau los ntawm electromagnetic kauj, ib qho chaw sib nqus ruaj khov yog tsim nyob ib ncig ntawm lub kauj. Qhov no magnetic teb nyiam cov ntaub ntawv ferromagnetic, xws li hlau thiab hlau, yog li ua tiav cov adsorption thiab fixation ntawm cov khoom.
Los ntawm txoj kev xav, DC chucks muaj qhov zoo xws li cov hlau nplaum ruaj khov, muaj zog adsorption quab yuam, thiab kev tswj kom yooj yim. Vim hais tias lawv yog powered los ntawm ncaj qha tam sim no, lawv cov magnetic teb lub zog yog qhov ruaj khov thiab tsis tshua muaj kev cuam tshuam rau sab nraud, ua kom ntseeg tau thiab ruaj khov ntawm cov adsorption. Tsis tas li ntawd, lub zog adsorption ntawm electromagnetic chuck tuaj yeem tswj tau yooj yim los ntawm kev kho qhov loj ntawm qhov ncaj qha tam sim no kom tau raws li qhov xav tau ntawm kev ua haujlwm sib txawv. Tsis tas li ntawd, kev tswj xyuas Circuit Court ntawm DC electromagnetic chuck yog qhov yooj yim, yooj yim rau kev tswj hwm thiab txhim kho kev tsim khoom.