The Snyder Industries 6500 Gallon XLPE Heavy Duty Cone Bottom Tank (SKU 7180000N42) is built for full-drain chemical batching and process storage where you need everything out of the tank between cycles. It holds 6,500 gallons in natural white crosslinked linear polyethylene (XLPE), stands 273 inches tall on a 90 x 90 inch footprint, and is rated to a 1.9 specific gravity - the heavy-duty rating that lets it carry dense chemistry, not just water. That 1.9 SG is Snyder's heavy-duty maximum for this cone body, so there is no higher-rated version of this tank to step up to.
Will it work for your application
This is a true cone bottom tank, so the contents flow toward the center outlet for complete discharge instead of leaving a heel behind. Plan your stand and outlet plumbing around the full 273-inch height and 90-inch diameter. The drawing for this tank shows a flange, an 18-inch PE threaded and vented fitting, and a manway with 15-inch access - reference the technical drawing on this page to confirm fitting locations and the exact manway layout before you set the tank. The 18-inch PE vented fitting is the atmospheric vent; keep it clear and unobstructed, because blocking it while filling or draining a 6,500-gallon cone can pull a vacuum on the tank. If you are deciding between cone-bottom sizes or working out the supporting stand, the Tank Sizing Calculator and Tank Sizing Guide walk through capacity and fit, and our cone bottom tank stand compatibility matrix covers which Snyder stands pair with this body.
Weight: the number people forget
Filled with water this tank weighs about 54,210 pounds, and at its 1.9 SG rating the contents can reach 102,999 pounds. Those are foundation and stand-engineering numbers, not afterthoughts - a cone bottom of this size needs a rated steel stand and a pad designed for the loaded weight. Size the structure to the rated contents weight, not the water weight, if you are running dense chemistry. Getting an accurate level read on a tall cone tank matters too: any top-mounted radar or ultrasonic instrument has to fit through the 15-inch manway access and account for the 273-inch height, so plan for the longer cable or stand-off runs. Our guide on level gauge selection for chemical service compares radar, ultrasonic, hydrostatic, and magnetostrictive options for chemical tanks.
Chemical compatibility
This tank is molded from XLPE (crosslinked polyethylene) and carries a 1.9 specific gravity rating, which is why it handles dense and aggressive chemistry that a standard 1.5 SG HDPE tank cannot. Match fittings and gaskets to the chemical, not just the tank, and always confirm against the OEM chemical-resistance chart at your actual concentration and operating temperature. We can supply the harder-spec hardware some services need - 316 stainless fittings and Viton gaskets - not just the default PVC/EPDM. Based on that chart, common compatible services for this XLPE tank include acetic acid at 60% (PP/PVC fittings, EPDM gaskets), aluminum sulfate at 50%, ferric chloride at 50%, ferric sulfate at 60%, ferrous sulfate at 20%, calcium chloride at 40%, magnesium chloride at 30%, sodium carbonate at 30%, potassium carbonate at 50%, sodium thiosulfate at 40%, and ethylene glycol at 100% - all on PVC fittings with EPDM gaskets unless noted. Several services call for specific fitting and gasket materials: DEF at 32.5% wants 316 stainless fittings with EPDM gaskets, hydrofluosilicic acid at 26% calls for PP/PVC fittings with Viton gaskets, propylene glycol (confirm your concentration) uses PP or 316SS fittings, potassium hydroxide at saturated concentration and urea solution at 50% (PP/PVC) run on EPDM, and polyaluminum chloride (confirm your concentration) on PVC/EPDM. Ozonated water up to 10 PPM is also listed (PVC fittings, EPDM gaskets). Because this is an XLPE tank running heavy chemistry, the XLPE vs HDPE guide explains when crosslinking actually matters, and the full Chemical Compatibility Database lets you check your exact chemical, concentration, and temperature. For secondary containment on dense chemistry, our Captor Plus 110% containment comparison is worth a read.
This tank ships LTL freight from the Snyder plant in Lincoln, NE, and freight is quoted live to your ZIP code - use the Freight Cost Estimator for a freight estimate or call us at 866-418-1777 to lock in a quote and confirm offload requirements for a tank this size. A cone bottom this tall needs equipment to set, so let us help you plan the delivery before it leaves Nebraska.
