Gravity kurongedza michina inoshandiswa zvakanyanya mukugadzirwa kwekugadzira mhangura, sirivheri, tungsten, tantalum, niobium, niobium, titloni, zirconium, ore uye chromiwi.
Iyo yepakati inoshandiswa mukati Machina jig anogona kunge ari mvura, uye kana mvura yashandiswa sedrapy yekunyepa.our Jigging jegi yakagadzirirwa kuyerera kwemvura, iyo inovandudza kuparadzaniswa kwakasiyana siyana mune dzakasiyana siyana.