Steel Tank and Fabricating Corp. (STAFCO) manufactures steel fertilizer tanks designed for long-term, safe storage of liquid agricultural fertilizers. With decades of experience serving the agricultural industry, we offer solutions tailored to your farm, co-op, or distribution operation.
Designed for Fertilizer Compatibility
STAFCO fertilizer tanks are built to handle a variety of liquid products, including:
- Potassium thiosulfate
- Phosphates
- Micronutrient blends
- Other specialty or blended fertilizers
We select materials and coatings based on the chemical composition and storage conditions of the product.
Construction Options
Our fertilizer tanks are available in:
- Carbon steel or stainless steel
- Vertical or horizontal orientation
- Capacities from a few hundred gallons to bulk 30,000+ gallon setups
- Single wall or, where appropriate, double wall construction
- Optional internal coatings for corrosion resistance
Accessories and Features
Accessories and features can include:
- Fill pipes and drain fittings
- Level gauges and sight glasses
- Access ladders, platforms, and safety railing
- Pump platforms and containment skids
Built for Agriculture
STAFCO fertilizer tanks are widely used by:
- Co-ops and bulk distributors
- Crop input dealers
- On-farm storage systems
- Custom applicators
- Agricultural equipment service facilities
These tanks are engineered for easy loading and unloading, minimal maintenance, and extended service life in demanding agricultural environments.
Compliance and Delivery Support
While most fertilizer tanks are not governed by fuel-related UL standards, we build to all applicable engineering and safety codes and can assist with:
- Containment requirements
- Anchoring systems
- Site-specific loading or environmental guidelines
Let’s Get Started
At STAFCO, we take pride in providing personal service—plain and simple. Contact us today to request a quote or discuss your fertilizer storage tank needs.
Fertilizer Tanks
| Gallons | Tank Size / Material | RFQ |
|---|---|---|
| 30,000 | 143"D X 36'-0" TALL X ¼" SHELL | Request Quote |
| 25,000 | 143"D X 30'-0" TALL X ¼" SHELL | Request Quote |
| 23,000 | 126"D X 36'-0" TALL X ¼" SHELL | Request Quote |
| 20,000 | 143"D X 24'-0" TALL X ¼" SHELL | Request Quote |
| 20,000 | 126"D X 30'-0" TALL X ¼" SHELL | Request Quote |
| 10,000 | 143"D X 12'-0" TALL X ¼" SHELL | Request Quote |
| 10,000 | 120"D X 17'-2" TALL X ¼" SHELL | Request Quote |
Click here for tank sizes not listed.
If you’re thinking about one of the standard tanks above, or need a custom sized tank, consider these key elements:
- How thick is the material used on the bottom head? Our bottom head is always 5/16” thick A-36 carbon steel material
- Is it made from one piece of material or multiple pieces? On tanks up to 143” diameter our heads will be made from one piece of material with a 3” flanged rolled up on the outer edge. Just some added comfort we build into the tank. No weld seams to worry about under the bottom of your fertilizer tank.
- Is the exterior of the bottom coated? Absolutely! Our vertical fertilizer tanks are always coated with a black asphaltum to act as a moisture barrier.
- How thick is the material used on the shell? STAFCO fertilizer tanks will always have a ¼” shell from the bottom ring to the top. This is a standard developed at STAFCO
- Is it the same thickness from the bottom to the top? YES!
- How is it welded? Solid inside and out? Our tanks are butt fit construction and welded solid inside and out.
- What kind of leak testing is done at the factory before the tank is shipped? We test our tanks three separate times during production to 3 psi of pressure to ensure that our customer feels comfortable that the tank they receive won’t leak.
- Does the tank come standard with a manway? YES!
- If so what size? Our tanks come standard with a 24” heavy duty below liquid manway. This manway was tested and can withstand over 60psi of pressure without leaking.
- How many fittings come standard on the fertilizer tank? Our standard tank comes with a 24” manway, two 1” fittings for your sight gauge tubing, one 3” fitting for your fill/draw and a 3” T-Vent installed in the roof.
- How will it be delivered? All vertical tanks up to 143” dia and 36’ long can be delivered on a tip up trailer. This gives you the comfort knowing you won’t have to pay added crane costs associated with unloading the tank.
