Stiffened Bins are Structurally Strong and Economical for Grain Storage

Sukup stiffened farm bins are an economical grain storage alternative. Adding stiffeners to a bin allow the use of lighter gauge sidewall sheets, without sacrificing structural strength; thereby, making a stiffened bin more economical. Stiffened bins also provide excellent structural stability against grain, wind and seismic loads. In addition, stiffeners transfer roof loads directly to the foundation, resulting in less stress on the sidewall sheets. And, stiffened bins are the strongest grain storage available.

Farm Grain Bin Stiffeners

Sukup farm bin stiffeners have up to a 42,000 lb. effective load capacity. The shape of the stiffeners was developed specifically to make them the strongest stiffeners on the market.
It all starts with high-strength steel (ASTM A653, Grade 50). Extra-strong stiffeners are made from high-strength steel, which is bent and formed into a specifically engineered, stiffened-hat shape that maximizes the strength of the steel. The end result is a stiffener that will stand straight and strong for many years – and bushels – to come.

Base Stiffeners are Longer and Stronger

Base stiffeners are 91” to cover the bottom two sheets and extend above the horizontal seam of the sheets for better support and structural integrity. Sukup stiffened bins are available with bolt-on base angle only.

Stiffened Bins Feature an Extra Strong Roof

This farm bin roof is designed to withstand 40 lb/sq. ft. ground snow loads and wind loads generated from 90 mph gust wind speeds. And, it all starts out with high-strength steel. Each sheet is rigidized every 4" to increase the stiffness of the panels, making them easier to handle. The 3" ribs serve as rafters for the roof structure, thereby; strengthening the sheets. The two bends on each side of the ribs further increase strength, allowing this bin roof to withstand heavy snow loads and high winds. Sukup takes the extra step of using two different size rollers to make the ribs on our roof sheets. With this system, the upper (overlapping) rib is slightly larger than the lower, allowing the sheets to completely overlap and nest properly. The high-strength steel, rigidizing, and 3" ribs all work together to give these stiffened bins their outstanding roof strength.

Stiffened farm bins up to 48' diameter feature our standard farm roof. The 5000 lb. standard farm roofs are capable of carrying a 40 lb/ft2 ground snow load and can withstand up to 90 mph wind gust speeds. The 54' and 60' diameter models feature our 15,000 lb. roof. The 15,000 lb. roof is designed to carry a 40 lb/ft2 ground snow load and can withstand up to 90 mph wind gust speeds. Our 15,000 lb. roof has the same external roof sheet structure as our standard roof, but has the added support of external roof rings and inner C-shaped rafters and purlins. A Sukup roof is supported every 9 3/8” at the eave by double-tab roof clips. The serrations grip the roof surface and prevent the nuts from working loose over time.

Farm Grain Storage Bins Specification Click Here