Steep Cone Bins Eliminate hangups with a Meridian Steep Cone Bin. The Meridian Steep Cone Series is your solution for commodities with bridging concerns and inconsistent flow. Built with the same standards as the fertilizer series, a smooth cone with our exclusive high slip factor powder coating, the Meridian Steep Cone features a 55° or 60° bottom cone with capacities up to 201 metric ton.