Babban zafin jiki da matsanancin matsin lamba 1: 3 ƙarancin wanka mai amfani da makamashi mai ceton injin rini na bobbin, wannan injin shine mafi haɓaka, mafi yawan tanadin makamashi, mafi kyawun yanayin muhalli sabon injin rini, gaba ɗaya ya karya hanyar rini na gargajiya na gargajiya.
A ƙarƙashin yanayin rashin canza tsarin rini na asali, zai iya barin mai amfani a cikin wutar lantarki, ruwa, tururi, taimako da sa'o'i na mutum don cimma cikakkiyar raguwa, kuma zai iya kawar da launi kuma ya rage girman bambancin Silinda.