A grat guga yana kama da irin nau'in madaurin. Akwai ƙaƙƙarfan yatsa mai ƙarfi ya haɗu akan jikin dutsen, kuma an sanya silin dutsen babban yatsa, wanda zai taimaka muku warware matsalar silinda ta silinda. A halin yanzu, ana kiyaye siliniyar hydraulic da kyau ta hanyar yin karo, matsalar haduwa da hydraulic silinda a cikin amfani bazai taba samun ka ba.