... speed reducer 1.The mill consists mainly of rolls ,frame ,bearing,roll nip adjusting screws,heating and cooling device,emergency,stop ... working surfaces are high hardness and wear-resistant.4. Roll nip adjustment is realized by hand operation which can obtain ... lenght of rolls(mm)280620750900100012001530Working linear speed of front roll(m/min)11.2414.415.116.2518.6524.529. ...