MAXIMIZE GRAIN HANDLING PROFIT! The Walinga Grain Bag Unloader is a new innovative product! The Walinga Grain Bag Unloader is ideal for quickly and safely emptying grain bags. The Walinga Grain Bag Unloader simplifies the labor required when emptying a grain storage bag. The tractor steers the gathering augers to keep them centered inside the bag. The inherent weight acts as a counterbalance for lifting & winding the bag. Hydraulic powered gathering augers & bag winders are used to move all the grain to a central suction inlet inside the bag that is connected to the grain vac via flexible suction tubing.