The Snyder Industries 5500 Gallon Black Heavy Duty Cone Bottom Tank (SKU 7040000N51) is a 1.9 specific-gravity cone bottom tank molded from High Density Linear Polyethylene, built to drain completely and hold dense process chemicals that a standard 1.0 SG tank cannot. At 90 inches square across the footprint and 241 inches tall to the top, it carries up to 5,500 gallons and is rated for contents weighing as much as 87,153 pounds, well beyond the 45,870 pounds a full charge of plain water would weigh. The black HDLPE shell and 1.9 SG wall rating are what let this tank handle heavy acids, brines, and concentrated solutions on a cone bottom stand.
Will this tank work for your application?
Cone bottom design forces every gallon toward the center outlet, so there is no dead heel of settled solids or stagnant chemical at the floor. Size the support structure to the loaded weight, not the empty shell: a full water column is 45,870 pounds, and at the full 1.9 SG rating the contents alone can reach 87,153 pounds. That is roughly 1.9 times the water weight, so a stand sized for water will be under-rated by about 41,000 pounds, which is the single most expensive error on a loaded cone tank. The full 90.0 x 90.0 inch footprint and 241-inch overall height are shown on the technical drawing on this page along with the cone angle. Use the Tank Sizing Calculator to confirm your volume and weight math, the Tank Sizing Guide if you are still deciding between cone bottom and flat bottom for this fluid, and the cone bottom tank stand compatibility matrix to pair this Snyder cone with a stand rated for the loaded weight.
Chemical compatibility
This is an HDLPE shell with a 1.9 specific-gravity wall rating. Before any chemical service, confirm the resin formulation and verify the loaded specific gravity of your fluid against that 1.9 ceiling. This tank ships without pre-installed chemical fittings, so you spec your bulkhead fittings and gaskets per your chemical before ordering rather than relying on a generic kit. The chemicals below come from the OEM chemical-resistance chart, which is concentration- and temperature-specific, so match your exact concentration and operating temperature first. One spec differentiator worth noting: this 1.9 SG cone suits DEF (diesel exhaust fluid) storage and dispensing at 32.5% with 316 stainless fittings and EPDM gaskets, one of the few entries here that calls for stainless rather than PVC.
- Acetic Acid (60%), PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate (50%), PVC fittings, EPDM gaskets
- Calcium Chloride (40%), PVC fittings, EPDM gaskets
- DEF (32.5%), 316SS fittings, EPDM gaskets
- Ethylene Glycol (100%), PVC fittings, EPDM gaskets
- Ferric Chloride (50%), PVC fittings, EPDM gaskets
- Ferric Sulfate (60%), PVC fittings, EPDM gaskets
- Ferrous Sulfate (20%), PVC fittings, EPDM gaskets
- Hydrochloric Acid (37%), PVC fittings, Viton gaskets
- Hydrofluoric Acid (48%), PP/PVC fittings, Viton gaskets
- Hydrofluosilicic Acid (26%), PP/PVC fittings, Viton gaskets
- Hydrogen Peroxide (50%), PVC fittings, Viton gaskets
- Magnesium Chloride (30%), PVC fittings, EPDM gaskets
- Peracetic Acid (30%), 316SS fittings, Aflas gaskets
- Phosphoric Acid (85%), PVC fittings, Viton gaskets
- Polyaluminum Chloride, PVC fittings, EPDM gaskets
- Potassium Carbonate (50%), PVC fittings, EPDM gaskets
- Potassium Hydroxide (saturated), PVC fittings, EPDM gaskets
- Propylene Glycol, PP/316SS fittings, EPDM gaskets
- Sodium Bisulfate, PVC/PP fittings, EPDM gaskets
- Sodium Bisulfite, PVC/PP fittings, EPDM gaskets
- Sodium Carbonate (30%), PVC fittings, EPDM gaskets
- Sodium Hypochlorite (<16.5%), PVC fittings, Viton gaskets
- Sodium Thiosulfate (40%), PVC fittings, EPDM gaskets
- Sulfuric Acid (98%), CPVC fittings, Viton gaskets
- Urea Solution (50%), PP/PVC fittings, EPDM gaskets
- Zinc Orthophosphate, PP/316SS fittings, EPDM gaskets
- Ozonated Water (up to 10 PPM), PVC fittings, EPDM gaskets
Notice how fitting and gasket material changes by chemical: Viton on the oxidizers and strong acids like hydrochloric, sulfuric, and sodium hypochlorite; EPDM on the salts and glycols; Aflas on peracetic acid; 316 stainless on DEF and peracetic. Mixing the wrong elastomer is the most common and costly mistake on a chemical tank, so build your fitting package off the Chemical Compatibility Database for your specific chemical, not a generic kit.
Freight and ordering
This tank ships LTL freight from the Snyder plant in Lincoln, NE, quoted live to your ZIP code. At this size and weight it moves on a dedicated line, so get a delivery quote before you commit using the Freight Cost Estimator, or call us at 866-418-1777 and we will quote it for you. Before you order, settle the two decisions that matter most on a 5500 gallon cone bottom: confirm your fluid's specific gravity stays at or under the 1.9 rating, and match your stand to the loaded weight on the technical drawing. For deeper background see the 5500 Gallon 30 Degree Cone Bottom Tank buyer's guide, the Snyder Captor Plus containment comparison for secondary containment planning, and the level gauge selection guide for chemical service.
