Commercial Grain Storage Bins – 30′ to 105′


Stiffened Commercial Farm Bins

Today’s larger producers are driving a demand for bigger, stronger bins. Superior’s commercial grain storage bins are built to stand-up to the biggest loads and toughest weather. They carry vertical loads to the foundation to resist winds up to 90-miles an hour and feature one of the industry’s strongest roofs. We understand that each bin holds more than grain, it holds your livelihood, so nothing except superior performance and reliability will do.

Call us at 866-822-9145 for a free quote on the most reliable bins in the industry.


The closer you look, the bigger the Superior advantages get.


  • Galvanized Rafters: Single and double C-channel rafters provide exceptional support for Superior structured roofs.
  • Galvanized X-Bracing: Galvanized X-Bracing provides for secure alignment of rafters and roof sheets.
  • Tension Purlins: Tension purlins are designed to go into tension as the weight of the roof pushes down and stabilizes both the roof and sidewall sheets in order to eliminate distortion.
  • Roof Load: Superior’s roofs can withstand ground snow loads of 40 pounds per square foot and winds up to 90 mph.
  • Roof Ribs: 3-1/2-inch-deep rigidized roof ribs are locked to the roof wind ring, so the roof acts as a single, dynamic unit.
  • Corrugation: The flat portion of the roof panel is corrugated for additional strength and finished with a formed drip edge.
  • Roof Vents: Pre-punched 20-by-20-inch roof vents are made from a high-molecular-weight polyethylene that is injected with a U.V. inhibitor prior to fabrication. A 1-inch tall ridge surrounding the vent hole prevents moisture from entering the bin.
  • Continuous Eave Angle: The continuous eave angle spreads the roof load evenly onto the sidewall sheets.
  • Bird Clips: Push-up bird clips on eave angles minimize parts and labor.
  • Wind Rings: Individual pipe sections are clamped and fastened to the roof with a locking bracket at every rib. This adds security and durability by eliminating twisting and displacement.
  • Formed Peak Ring: Superior’s formed peak ring has three breaks instead of one to resist deformation. The roof panel rests on the peak ring and is pressed into a foam closure to seal it against wind-driven snow or rain.
Bin Diameter Panels Standard Roof Optional Roof
30′ – 54′ Single-panel 15,000 pound
60′ Single-panel 15,000 pound 30,000 pound
50,000 pound
75′, 90′, 105′ Multi-panel 30,000 pound 50,000 pound


  • Bin Step: (Standard) For safe and easy access, all Superior farm bins come with a standard bin step.
  • Bin Stairs and Platform: (Optional) Superior bin stairs provide secure access to the bin’s eave. Galvanized stairways with adjustable treads will stand up to the elements and ensure safety for years. A 34-by-60-inch platform, the largest in the industry, comes standard with stair packages.
  • Roof Ladder Package: A roof ladder is standard on all Superior bins. For additional safety, add an optional roof ladder handrail package.
  • Peak Walk-Around: (Optional) Platforms add security and provide ample room for performing service. The bolt-together galvanized construction eliminates platform failure, rust formation or the chance of welds cracking.
  • Interior Ladder: (Standard) An interior ladder comes standard on all Superior bins.
  • Exterior Ladder and Platforms: (Optional) Exterior ladder packages are available for bin access.


  • Strength: Herculok floors are formed without removing steel for additional strength.
  • Ribbed Flashing: Ribbed flashing provides strength for taller eave heights and traction for Superior sweep wheels.
  • Interlocking Design: An interlocking design features a locking tab when the planks are snapped together, ensuring the floor stays in place.
  • Heavy-Duty Herculok Floors: Heavy-Duty 18 gauge Herculok floors are standard on 48′ – 54′ diameter bins and optional on 15′ – 42′ diameter bins. Herculok floors are also available for 60′ – 75′ bins with eave heights up to 66 feet.
  • Herculok Z-supports: Z-Supports feature multiple vertical breaks and interlocking tabs for increased strength and stability.
  • Welded Supports: Welded supports provide extra strength for larger bin needs.
  • Herculok Canola: (Optional) Herculok canola floors feature 8 percent openings that keep smaller grains from impeding airflow.


superior power sweep
  • Unloading Speeds: 11-inch U-trough achieves unloading speeds up to 6,000 bushels per hour without damaging kernels.
  • Discharge Covers: Hinged discharge covers are easy to open and close. Latch the cover open when unloading. During the off-season, you can close and latch the cover shut to prevent snow or rodents from entering the unload.
  • Rack-and-Pinion Gates: All sumps are covered with rack-and-pinion gates that are fixed with roller bearings for easy opening and closing.
  • Independent Next-to-Center Sump: A next-to-center sump that opens independently from the other intermediate sumps can be opened if the center sump becomes plugged.
  • Double Flighting: Double flighting in the center sump increases unload capacity.
  • 16:1 Gear Reduction: An aggressive 16:1 gear reduction wheel propels the sweep into the grain mass for faster and easier unloads.


  • Grade 50 Steel: Superior bins use Grade 50 steel that has a tensile strength up to 65,000 psi.
  • G-90 Bright Galvanization: A G-90 bright galvanized steel coating provides enduring protection against the elements.
  • JS500 Grade 8.2 Bolts: All bins come standard with JS500 grade 8.2 bolts, which are seven times more resistant for exceptional protection compared to standard galvanized bolts.
  • Stiffeners: Superior stiffeners are roll formed for a consistently perfect fit. Splice connections on three planes provide critical load bearing transfer between stiffener sections.
  • Sidewall Wind Rings: Sidewall wind ring brackets bolt directly to the center of the stiffener for increased load capacity. They are designed with an open top for easy installation of the 2 – 1/2″ galvanized wind ring pipe and secured with a stand off closure.
  • Pre-Rolled Base Angle: Commercial bins without laminated sidewall sheets come standard with a pre-rolled base angle and a foam sealant gasket to protect the bin from the elements.
  • Bolted Base Angle: Commercial with laminated sidewall sheets come standard with a bolted base angle.


  • Fan Hanging Kits: (Optional) Superior’s Fan hanging kits allow the fan to settle with the bin, which protects the transition.
  • Fan Transitions: Superior fan transitions direct the airflow from the fan to the bin and are designed to fit any type of fan.
  • Low-Speed Centrifugal Fans: Low-speed centrifugal fans provide greater airflow than the industry standard. Operating at 1,750 rpm, these fans are the ideal choice for most drying conditions and are much quieter than other types of fans.
  • High-Speed Centrifugal Fans: High-speed centrifugal fans are squirrel cage fans that run at 3,500 rpm. These small fans move low volumes of air at low to moderately high static pressures, so they are ideal for aeration with deep grain depths.
  • High-Speed Vane Axial Fans: High-speed vane axial fans in a cylindrical housing also run at 3,500 rpm and are typically used on smaller bins.
  • Fan Heaters: (Optional) Fan heaters speed drying time by heating air from the fan before it reaches the plenum area.







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