Potato Combine Harvester with 6T bunker 4UL-170F

Working Principle:

The weed removal structure employs a multi-stage vine-pulling roller + multi-stage spiral roller weed remover. 

The specific configuration of each stage of the weed removal mechanism can be flexibly adjusted according to different harvest stages to achieve a 

gentler and cleaner weed removal effect.

During operation, potatoes enter the primary screen through the digging mechanism. By adjusting the height of the vine net, the vines are smoothly 

fed into the primary vine-pulling roller. The vine-pulling roller can be adjusted in height and spacing to meet the weeding needs of different 

environments, while avoiding clogging or trapping potatoes.

The potatoes enter the secondary screen, where larger weeds have already been removed. The remaining smaller vines are then screened by 

the secondary vine-pulling roller. The primary and secondary vine-pulling rollers complement each other in their effectiveness.

The potatoes then enter the multi-stage spiral roller weed remover. This section is the core area for impurity removal. Multiple hollow 

polyurethane spiral rollers and a smooth shaft are arranged sequentially.

Their texture and clamping action remove impurities from the potatoes. This hydraulically driven section allows for flexible control of the entire 

structure's angle and the relative positions of the spiral and smooth rollers, including height and gap adjustment, controlling the flow of potato 

material and impurity separation.

Precise hydraulic adjustment of the individual speeds of the spiral and smooth rollers allows for instantaneous reversal to resolve issues such as 

jamming or blockage.

The separated potatoes then enter a circular lifting device via a distribution system. This compact design lowers the equipment's center of gravity 

and improves stability.