According to the conveying type, there are two kinds of it, one is wit醫船h axle and the other is without axl吧裡e.
In appearance, there are U-type on新市e and tubular one.
Spiral conveyor with axle is fitted for c能金onveying dry material which is non拍匠-viscous and little particle,
such as cement, coal powder, l爸女imestone powder and food.
