Nthawi zambiri kutsogola kwadzidzidzi komanso kofunikira kumachitika mdziko la zida, ndipo zaka zingapo zapitazo inali imodzi mwa nthawizo. Imatchedwa brushless motor technology, ndipo imalonjeza kulimbikitsa nthawi yomweyo kugwiritsa ntchito zida zopanda zingwe pagulu lonse. Onse opanga zida akubweretsa zida zopanda brushes pamsika pompano, ndipo ngakhale zida zambiri zopanda zingwe pamashelefu am'sitolo sizikhala zopanda maburashi, ukadaulo watsopanowu ndi woyenera kuyang'ana. Kuti mumvetse chifukwa chake, muyenera kumvetsetsa zomwewopanda brushzonse zili munkhani yamagetsi amagetsi. Mutha kuwona mitundu iwiri yama motors pansipa, yotsegulidwa pang'ono kuti muwonekere pakuyesa kwanga chida.

Kubowola kwa Makita kumanzere kuli ndi maburashi achikhalidwe, ndipo Milwaukee kumanja alibe brushless. Zovuta zonse zamakina zamapangidwe a brushed zimasiyidwa ndi kuphweka kwa makina ozungulira mkati.

Mwachizoloŵezi, zida zamagetsi zamagetsi zimakhala ndi tinthu tating'onoting'ono ta kaboni tobisika mkati. Mipiringidzo imeneyi imatchedwa maburashi (ngakhale kuti samawoneka ngati "burashi" ndipo alibe bristles) ndipo amakankhira mbali yozungulira ya injini, kupereka magetsi kwa iyo pamene ikutembenuka, pamene ikuthandizira kupanga magetsi ozungulira. Ndi gawo lozungulira ili mkati mwa mota yomwe imapangitsa kuti izizungulira, ndipo maburashi akhala gawo lofunikira popanga izi kwazaka zopitilira zana. Koma ngakhale ali othandiza, maburashi amakhala ndi malire akulu awiri. Amatha ndipo amayambitsa kukangana.

Popeza kuti maburashi amapangidwa kuti azipaka ziwalo za mkati zozungulira, zimatha pakapita nthawi. Umu ndi momwe zilili, ndipo ngati maburashi sanasinthidwe pakapita nthawi, chida chilichonse chimawonongeka ndikugwiritsabe ntchito. Vuto lina la maburashi ndi mphamvu zomwe amawononga. Kusisita kumatanthauza kukangana ndi kunyezimira, ndipo izi zikutanthawuza kuchepa kwa ntchito yomwe imachitika pa batire iliyonse, zonse kukhala zofanana.

Zida zopanda maburashiamalepheretsa vuto la kutha komanso vuto la kukangana, ndipo amachita izi ndi mapangidwe osavuta kuposa ma mota akale, ngati burashi. Mitundu iwiri yobowoleza ikuwonetsa mbali ndi mbali pamwambapa ikuwonetsa kusiyana, ngakhale simukudziwa kalikonse za ma mota mutha kuwona kusiyana kwake.

Ndi chiyani chomwe chingakhale chophweka kuposa ichi? Mbali yamkati ya kubowola opanda zingwe yokhala ndi mota yopanda burashi ikuwonetsa momwe njira iyi iliri yosavuta. Moyo wautali wogwira ntchito komanso kukangana kochepa kwamkati ndizomwe zimapangitsa kuti ma motors opanda zida zamagetsi azikhala pano.

M'malo mwa makina opangira maburashi, akasupe ndi magawo ena omwe amapangitsa kuti ma motors amagetsi a DC azizungulira, zida zopanda maburashi zimagwiritsa ntchito zozungulira zamagetsi kuti zikwaniritse zomwezo ndi magawo ochepa osuntha. Zotsatira zake ndi zodzinenera zazitali kuchokera kwa opanga kwa moyo wautali wa zida ndi ntchito zambiri zomwe zimakwaniritsidwa pamtengo uliwonse. Ma motors opanda maburashi amayenera kukhala nthawi yayitali kuposa 1000% kuposa ma mota opangira maburashi asanathe, ndipo akuyenera kupereka 50% ntchito yochulukirapo kuchokera pa paketi ya batri yomwe idapatsidwa musanapereke ndalama. Koma zonena ndi zosavuta kupanga, ndichifukwa chake ndinaganiza zofufuza ndekha.

Kutsegula chibowolero chopanda brushless cha DEWALT chikuwonetsa injini yosavuta ya zida zamagetsi zopanda brush. Kuzungulira ndi mawaya omwe amachokera pamenepo amatenga malo a maburashi amakina ndi akasupe.

Kuyesabrushless chidaliwiro ndi chipiriro, ndinayika 18 volt Milwaukee FUEL 2604 brushless kubowola ndi mtundu womwewo wa 9/16 ”bowola ndikuyika muzobowolera zatsopano, zofananira ndi burashi: 20 volt DeWALT DCD989 ndi 18 volt Makita BHP454. Zida zonse zitatu zinali zitadzaza mabatire a 3.0 amp-ola koyambirira kwa mayeso aliwonse. Ndinayeza mabowo angati akuya a mainchesi 10 omwe ndimatha kubowola kumapeto kwa zipika zolimba za mapulo pa mtengo umodzi, komanso kuti zidatenga nthawi yayitali bwanji kubowola mabowowa. Ndidabwerezanso mayesowa kangapo, ndikuwerengera manambala opanga komanso liwiro kuti ndikhale wolondola. Mfundo yofunika kwambiri: Milwaukee brushless FUEL yomwe inabowoleredwa inathamanga 40% motalika kuposa momwe amachitira masewera olimbitsa thupi pa batri yofanana, ndi 22% mofulumira kuposa chitsanzo chotsatira. Kuti muwone mwatsatanetsatane kusiyana pakati paukadaulo pakati pa burashi motsutsana ndi brushless, ndikuwona ndendende momwe zobowolera zonse zitatu zikufananirana.

Zopindulitsa zomwe zimaperekedwa ndi zida zopanda brush zimabwera pochepetsa kuchuluka kwa mphamvu zomwe zimatayika ngati kutentha, ndikusintha mphamvuyi kukhala ntchito. Kupatula kusiyana koyezeka kwa liwiro ndi kupirira, mutha kumvanso kusiyana m'manja mwanu mukamagwiritsa ntchito zobowola pansi pa katundu. Ngakhale kutentha kwambiri kumatuluka pamiyendo yobowola ngati burashi pobowola, Milwaukee idathamanga mozizirira bwino - monga momwe mungayembekezere.