With the APEX center fill spout and tarp lift ring, dust and fines are controlled for a clean filling center fill system. The self-closing hinged doors on the center fill spout are staggered on all sides to provide an even fill under the tarp. With a complete hoisting system the tarp can be deployed on the ground before the pile is filled to protect crops from the elements. Call APEX today for A Precision Engineering Xperience!!