The innovative web grader, type WG 900, with its compact design and height-adjustable chassis is easy to integrate into the crop flow. Due to an optimized design the effective grading area could be increased by 15 % compared to the previous model. However, the overall length of the grading web has remained the same, so that the available grading webs of the previous model can still be used. The 900 mm wide rubber web with with conically shaped meshes has only low impact on the crop. It offers an ideal compromise between grading accuracy and flow rate thanks to its infinitely variable drive. A soft paddle pusher in front of the drive drum ensures a gentle crop lifting without damage. The new 800 mm wide grading cross conveyor ensures optimum crop transfer to downstream conveyors, regardless of their angle to the web grader. For grading in different sizes in a single operation-step, several units WG 900 can be coupled in series - simply and without conversion. The unique "QuickConnect" quick-change system reduces downtime by up to 70% compared to conventional web-joiners. Thus grading webs can be adapted to the desired tuber size more quickly and easily.