Our round storage bins are designed to provide many years of safe, convenient, and economical storage. The bins have a heavy duty steel foundation and stand which is constructed of 5"x5" square tubing with all stress points reinforced. The foundation is designed so that the bin can be bolted down and later moved if necessary, without sacrificing strength or stability. The tank and cone are of 12 gauge steel and the cone has a 45 degree slope for faster and more complete material dispensing. We equip these bins with a pneumatic fill tube, a 20" hinged vented top lid, an access ladder with guard, a scissors type cut off door with 24" clearance and made of 1/4" stainless steel, and an auger with a stainless steel boot, an 8 5/8" tube, a clean out door, and it has a 14' discharge height. We protect the bins with a highly durable industrial strength paint. We coat the inside twice for added protection. S&A's round storage Bins come in 3 standard sizes. The 35 ton model is 15'6" high, the 55 ton is 22'6" high, and the 73 ton is 24' high.