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Offering More Roof Options – Including Peak Load Capacity of up to 50,000 lbs. (22,680 kg) on Chief’s Larger Bins!

Chief offers a wide range of standard and optional roofs to meet the desired peak load capacities for your specific operation and handle snow loads for your geographic location.  Included is the optional 50K roof which can increase peak load capacity to 50,000 lbs (22,680 kg) on CB30 and CB34 bins.

Peak loads may eliminate the need for an additional support tower and catwalk on 50k roofs.

50K roofs with a 6’ (1.82m) or 12’ (3.65m) peak ring will support most conveyors with capacity up to 60,000 BPH (1,524 MTH). This negates spanning a catwalk/truss across the bin roof and installing an additional support tower and catwalk.

50K Roof Promotes Faster Fill Times

With its larger peak load capacities, a 50K roof with a 12’ (3.65m) peak ring will allow customers to use larger capacity conveyors for quicker fill times. 

Grain Entrapment Prevention

All Chief bins come equipped with anchorage points at the bin peak and manhole to provide tie-off points for anyone entering the bin.

Unparalleled Strength & Durability

Strength & Durability

Chief produces high-quality corrugated sidewalls from steel with a tensile strength of 70 ksi (483 MPa). The sidewalls provided with 5/16- and 7/16-inch grade 8 bolts with a conical sealing washers and serrated flange nuts.

Chief expects your bins to be around a long time, to that end, Chief provides bins with the following coating and standards.

  • Roof sheets with a G140 (425 g/m2) galvanized coating. (56% thicker coating compared to G90)

  • Sidewall Sheets & Stiffeners with a G115 (350 g/m2) galvanized coating. (28% thicker coating compared to G90 (275 g/m2)

  • Bolts and serrated nuts with a 1000-hour salt spray test coating.


Reduced Assembly Time

Chief's unique 42.4" (107.7 cm) sidewall sections require fewer rings, seams, and stiffeners than the 32" (81.28 cm) sidewall sections of competing bins. When combined with our exclusive "W" stiffener, Chief bins offer unsurpassed strength while reducing costly assembly time.

Wind & Seismic Upgrades Available

All Chief bins are designed per ASCE 7-16 and can be upgraded to withstand the environmental loads specific to your area as needed.

World-Class Design Features

Easy Access Doors

Chief offers one-ring double-portal frame doors or two-ring walk-thru doors. Both have an easy latch system to provide  unobstructed entry without requiring the removal of cross ties, tie rods, or tie bars.

One ring doors measure 26" (0.66 cm) wide by 26" (0.66 cm) tall; walk-thru doors measue 26" (0.66 cm) wide by 50" (1.27 m) tall. The door frames are hot-dip galvanized for superior corrosion resistance.

Optional Drive-In Bobcat Door

This convenient door measures 7'1" (2.164m) wide by 8'8" (2.68m) tall and is hot dip galvanized for superior corrosion resistance.

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Vents and Roof Exhausters

Chief offers the industry's most complete exhaust line. All vents install easily and are designed to minimize build-up of ice and foreign materials.

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Mushroom Vent

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1/2 & 2 HP Roof Fans Available

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Goose Neck Bin Vent

Patented Side Draw Design Increases Strength & Unload Speeds

With Chief's side draw system, load-out stations can be set up for truck or rail, or any other load-out needs with capacities of up to 40,000 bushels/hour (1020 MT/H).

Chief's new side draw system reinforces the bin wall and directs the grain from the ceiling to side draw discharge opening. In-take openings also help redistribute grain to discourage bridging.

There are three sizes to meet your needs. Bushel/hour is based on tests involving runs of #2 grade corn.

  • 14" Spout - 10,000 BPH (255 MT/H)

  • 18" Spout - 20,000 BPH (510 MT/H)

  • 24" Spout - 40,000 BPH (1020 MT/H)

More Safety & Time-Saving Features

Roof Inspection Door is Accessible from Eave Platform

Chief offers single-tier and two-tier eave platforms. Either one will allow a person to safely remain standing while inspecting the grain through the roof inspection door.

Platforms For 6' & 12' Peak Rings

The peak of the roof can be accessed more safely and easily with platforms that meet OSHA requirements. They have ample width for easy maneuverability, and increased security.

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Mid-Roof & Eave Walk-Around Platforms

These platforms feature a guardrail and offer ample width for easy maneuverability, making it easier and safer to maintain the bin's openings and vents.

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Mid-Roof Walk-Around

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Eave Walk-Around

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