Screw ship unloaders designed and manufactured by CNBM are advanced in technology, perfect in performance, reliable in operation, favorable in stability, efficient in unloading, long in service life, convenient for maintenance and can meet the needs for high freight volume, high-efficiency and frequent operation. The screw ship unloaders have fixed type screw ship unloader and moveable type screw ship unloader.

Screw ship unloader is stationary mechanical drive screw ship unloader with two or three linked sections, it is mainly composed of vertical and horizontal spiral conveying equipments. Vertical and horizontal spiral motion is drived by hydraulic cylinder. This ship unloader is suitable for the size of 2000 DWT - 50000 DWT ships and the production capacity is 200 T/H~1000T/H. This type of ship unloader is suitable for unloading powder and granular materials.