Duk da haka, idan zafin injin ya tashi sama da yanayin zafin haɗin clutch ɗin, fanka zai yi aiki sosai, don haka yana jawo iska mai yawa ta cikin radiator ɗin motar, wanda hakan ke taimakawa wajen kiyaye ko rage zafin sanyaya injin zuwa matakin da ya dace.
Ana iya tuƙa ƙwanƙwasa fanka ta hanyar bel da pulley ko kuma kai tsaye ta injin lokacin da aka ɗora shi a kan crankshaft na injin. Akwai nau'ikan ƙwanƙwasa fanka guda biyu: ƙwanƙwasa fanka mai kama da silikon (ƙunƙwasa fanka mai kama da silikon) da ƙwanƙwasa fanka mai kama da lantarki. Yawancin ƙwanƙwasa fanka ƙwanƙwasa fanka mai kama da silikon a kasuwa.
Rukunin fanka na man silicone, tare da man silicone a matsayin matsakaici, yana amfani da halayen danko mai yawa na man silicone don watsa karfin juyi. Ana amfani da zafin iskar da ke bayan radiator don sarrafa rabuwa da hulɗar clutch na fan ta atomatik ta hanyar na'urar firikwensin zafin jiki. Lokacin da zafin ya yi ƙasa, man silicone ba ya gudana, an raba clutch na fanka, saurin fanka yana raguwa, galibi yana raguwa. Lokacin da zafin ya yi yawa, danko na man silicone yana sa clutch na fanka ya haɗu don tura ruwan fanka don yin aiki tare don daidaita zafin injin.
G&W na iya samar da maƙallan fanka na silikon SKU sama da 300 da wasu maƙallan fanka na lantarki ga shahararrun motocin fasinja na Turai, Asiya da Amurka da manyan motocin kasuwanci: AUDI, BMW, VW, FORD, DODGE, HONDA, LAND ROVER, TOYOTA da sauransu, kuma yana ba da garantin shekaru 2.