... long service life. 3. Small size and rapid Introduction:Series LS screw conveyor is suitable for conveying powdery materials, granular materials ... , coal, machinery, light industry, grain and food industries. Series LS screw conveyor is not suitable for conveying perishable, sticky or ... 15°. If the inclination angle is big, please choose series GX screw conveyor, or you can contact us for special design ...