Ma injini am'madzi am'mimba ali ndi mphamvu zambiri, chuma chabwino, kuyambira kovuta, komanso kusinthasintha kwakukulu pamitundu yosiyanasiyana ya zombo. Pambuyo poti, mawu oyambawo adatengedwanso ngati mphamvu yayikulu yopita kwa zombo. Pofika m'ma 1950s, injini za dizilo zinali pafupi kusintha kwathunthu zombo zoti zatuluke kwambiri ndipo pakali pano ndi gwero lalikulu la zombo za anthu wamba, zombo zazing'ono komanso zapakatikati. Malinga ndi gawo lawo m'mbiri, amatha kukhala olembedwa ngati injini zazikulu ndi injini zothandiza. Ma injini zazikulu amagwiritsidwa ntchito poyambira kutumizidwa, pomwe ma exililiary amayendetsa majeretoni, mpweya wopondera mpweya, kapena mapampu a madzi, etc.
Makina otchuka khumi adziko lonse lapansi amaphatikizapo Deutz kuchokera ku Germany), munthu waku Germany, aku Britain, waku America, waku South Kosan Daewoo, Japan Yanmar