Makina a njerwa osawotchedwandi akatswiri zida kubala njerwa. Itha kugawidwa m'mitundu yosiyanasiyana malinga ndi liwiro losiyanasiyana lopanga. Pakadali pano, zida zopangira ma hydraulic zogwira ntchito kwambiri zimagulitsidwa pamsika, zomwe zili ndi zabwino zambiri. Mwachitsanzo, imatha kusonkhanitsa makina ndi magetsi ngati njira yodzizindikiritsira zolakwika, ndipo imakhala ndi chitetezo chokwanira.

Kusankhidwa kwathunthu kwa nomakina oyatsa njerwandi zobisika mafuta njira kuchepetsa danga mankhwala, amene angathe kusintha mphamvu malinga adzafupikitsidwa chitoliro mafuta. Zigawo zazikuluzikulu za pulogalamuyi zimatumizidwa kuchokera ku Germany, zomwe zimakhala zovuta kwambiri, ndipo zimathetsa kutulutsa kwamafuta kwa madigiri osiyanasiyana chifukwa cha nthawi yayitali ya zida. Mu ulamuliro wa ntchito PLC ulamuliro dongosolo, onse kusankha chionetsero cha mawonekedwe Chinese, kuti mu nthawi ntchito kupereka mosavuta kwa wosuta, kusankha stepless pafupipafupi kulamulira pulogalamu akhoza zochokera zinthu kusintha zochita, ndi kusintha.