Screw Conveyor: 1.Dia100,160,200,250,315,400,500,630, ... ,ash,sand,coal,chemical fertilizer Technical parameterLS series10016020025031540050063080010001250GX series 200250300400500 Screw diameterD(mm)10016020025031540050063080010001250Screw pitch S(mm)100160200250315355400450500560630Rotational speedn(r/min ... .11.82.33.43.45.681416.723.233 LS Series Pellet Screw Conveyor