Grapple ndi njira yabwino yogwiritsira ntchito zinthu zosiyanasiyana. A 3 tis stember otchera mabokosi a steel stember otchedwa bokosi la bokosi limasonkhana mpaka kubzala kwathunthu. Malinga ndi ntchito yanu yosiyanasiyana, titha kulimbikitsa chindapusa cha mafunde ake ndi mbale zake zamkati mwa matupi awiriwo. Yerekezerani ndi chingwe cha makina, grapple ya hydraulic imakupatsani njira yosinthira. Pali matope awiri a hydraulic amayika bokosi la tisinesi, lomwe limatha kuwongolera matupi atatu otseguka kapena pafupi kuti agwire zidazo.
