Imwe mu mpapuro za mbere za "urunigi rutagira iherezo" rugizwe n'umunyururu uhuza amenyo yabonetse yahawe Frederick L. Magaw wo muri Flatlands, muri New York mu 1883, bigaragara ko yari agamije gukora imbaho ​​arambura urunigi hagati y'ingoma zometseho.Nyuma yaho ipatanti ikubiyemo umurongo ngenderwaho yahawe Samuel J. Bens wa San Francisco ku ya 17 Mutarama 1905, umugambi we wo kugwa mu biti binini bitukura.Urunigi rwa mbere rwimurwa rwakozwe kandi ruhabwa patenti mu 1918 n’umwanditsi w’umunyakanada witwa James Shand.Amaze kwemerera uburenganzira bwe gutakara mu 1930, igihangano cye cyatejwe imbere n’icyahindutse isosiyete yo mu Budage Festo mu 1933. Isosiyete, ubu ikora nka Festool, ikora ibikoresho by’amashanyarazi byoroshye.Abandi bagize uruhare runini mumurongo ugezweho ni Joseph Buford Cox na Andreas Stihl;aba nyuma bahaye patenti kandi batezimbere urunigi rwamashanyarazi kugirango rukoreshwe ahantu hacururizwa mu 1926 n’umunyururu ukoreshwa na lisansi mu 1929, maze bashinga isosiyete yo kubibyaza umusaruro.Mu 1927, Emil Lerp, washinze Dolmar, yateje imbere urunigi rwa mbere rukoreshwa na lisansi ku isi maze arukora cyane.

Intambara ya Kabiri y'Isi Yose yahagaritse itangwa ry’imyenda yo mu Budage muri Amerika ya Ruguru, bityo havuka inganda nshya, zirimo Industrial Engineering Ltd (IEL) mu 1939, umusogongero wa Pioneer Saws Ltd ndetse n’igice cya Outboard Marine Corporation, kikaba cyarahoze gikora iminyururu mu majyaruguru Amerika.

Mu 1944, Claude Poulan yagenzuraga imfungwa z’Abadage batema ibiti muri Texas y'Uburasirazuba.Poulan yakoresheje ikamyo ishaje hanyuma ayikora mu gice kigoramye yakoreshejwe mu kuyobora urunigi."Umuheto uyobora" noneho yemereye urunigi gukoreshwa numukoresha umwe.

McCulloch muri Amerika ya ruguru yatangiye gukora iminyururu mu 1948. Moderi yo hambere yari iremereye, ibikoresho byabantu babiri bifite utubari ndende.Akenshi, iminyururu yari iremereye kuburyo yari ifite ibiziga nkibikurura.Indi myambaro yakoresheje imirongo yaturutse mumashanyarazi azunguruka kugirango atware umurongo.

Nyuma y’Intambara ya Kabiri y'Isi Yose, iterambere rya aluminium na moteri ryoroheje iminyururu kugeza aho umuntu umwe yashoboraga kuyitwara.Mu duce tumwe na tumwe, abakozi ba munyururu hamwe na skidder basimbuwe na feller buncher hamwe nuwasaruye.

Iminyururu yasimbuye hafi ya byose byoroheje bikoreshwa n'abantu mumashyamba.Byakozwe mubunini bwinshi, uhereye kumashanyarazi mato agenewe gukoreshwa murugo no mu busitani, kugeza kuri "ibiti binini".Abagize imitwe ya injeniyeri ya gisirikare batojwe gukoresha iminyururu, kimwe n’abashinzwe kuzimya umuriro kurwanya inkongi z’amashyamba no guhumeka umuriro.

Ubwoko butatu bwingenzi bwurunigi rukoreshwa: dosiye yintoki, urunigi rwamashanyarazi, hamwe na bar-yashizwe.

Urunigi rwa mbere rw'amashanyarazi rwahimbwe na Stihl mu 1926. Iminyururu ya Corded yabonetse kugurishwa ku baturage guhera mu myaka ya za 1960, ariko ntabwo byigeze bigenda neza mu bucuruzi nk'ubwoko bwa gaze bukoreshwa na gaze bitewe n'ubunini buke, biterwa no kuba hari amashanyarazi, wongeyeho ibyago byubuzima n’umutekano byo kuba hafi yicyuma.

Mubyinshi mu ntangiriro z'ikinyejana cya 21 byatwaraga amavuta ya peteroli yagumye kuba ubwoko bukunze kugaragara, ariko bahuye n’irushanwa ryaturutse kuri batiri ya lithium itagira umugozi ikoresha iminyururu guhera mu mpera za 2010.Nubwo iminyururu myinshi itagira umugozi ari nto kandi ikwiriye gusa gutema uruzitiro no kubaga ibiti, Husqvarna na Stihl batangiye gukora iminyururu yuzuye yo gutema ibiti mu ntangiriro za 2020.Amashanyarazi akoreshwa na bateri agomba kubona umugabane wamasoko muri Californiya kubera imbogamizi za leta ziteganijwe gukurikizwa mumwaka wa 2024 kubikoresho byo guhinga gazi.