Ukufikelela okude kokudilizwa kwe-boom kunye nengalo yenzelwe ngokukodwa ukudiliza izakhiwo ezinemigangatho emininzi.Uyilo lwamacandelo amathathu lwenza ukudilizwa kwe-boom & ingalo ibe bhetyebhetye kwaye ikwazi ukufikelela kwithagethi kwi-engile efunekayo.Ngokuqhelekileyo ixhotyiswe kwi-35t ~ 50t excavator.Endaweni yebhakethi, ukufikelela okude kokudilizwa kwe-boom & ingalo ithatha ukucheba ngehydraulic ukuze ikrazule itekeni ngokulula.Ngamanye amaxesha, abantu baphinda bakhethe i-hydraulic breaker ukuze baphule ikhonkrithi eqinile.