Induku yasePoland iwuhlobo lwenduku yokuncela ekhethekile exhunywe nenduku yokuncelisa kanye nesiphanyeko se-beam. Ingaphezulu kwe-sucker rod, idinga ukuthwala amandla amakhulu, ngakho-ke ngobubanzi obukhulu kanye nezinga lensimbi eliphakeme kune-sucker rod, futhi ingaphezulu libushelelezi kakhulu.