Cone-bottom (also called cone-bottom or full-drain) polyethylene tanks are engineered for applications where complete sediment evacuation, batch mixing, or downstream dosing matters. The angled bottom — 15°, 22.5°, 30°, 45°, or 60° from horizontal — drives settled solids toward the centerline drain and lets you empty the vessel to a true zero residual. Our catalog covers every active SKU from Norwesco, Snyder Industries, Chem-Tainer, Enduraplas, and Bushman.
Applications
Batch mixing of fertilizers, surfactants, and process chemicals — solids settle and drain cleanly
Chemical inductor / dissolution service — dry chemical mixing into water before spray
Wastewater pre-treatment — solids drop-out and decant
Slurry storage and dewatering — sand, polymer, sediment ponds
Total-drain chemical feed for metering pumps (no dead-leg residue)
Compliance & Standards
Typically rotomolded to ASTM D1998; FDA 21 CFR 177.1520 resin compliance varies by model (see each product's Specifications). Cone bottoms must be supported by a properly rated steel stand — every cone-bottom tank is shipped with or sized for a matching stand (verify on each listing). Stand height equals cone height plus minimum 6" clearance for valve/discharge piping. Confirm working SG rating against your fluid; cone-bottom geometry concentrates head pressure at the centerline drain.
Engineering & Selection
Cone angle directly governs how cleanly your tank will drain. 15° works for free-flowing liquids only. 22.5°–30° is the sweet spot for most chemical and fertilizer service. 45°–60° is required for slurries, settled solids, or viscous fluids — anything that won't self-flow at shallower angles. Steeper cone means taller overall height and a taller stand, so verify ceiling clearance before ordering. Outlet sizing scales with intended flow rate: 2" for gravity discharge to drum, 3"–4" for pump suction or batch transfer.
Freight & Delivery
Tanks ship LTL motor freight from the closest stocking warehouse to your delivery ZIP. Typical transit 5–10 business days. Liftgate available at delivery (per-shipment fee). Always inspect at delivery and note damage on the bill of lading before signing — that is the carrier claim trigger. Bulk-order consolidation reduces per-tank freight 25–40%. Get your LTL freight quote by ZIP, or call 866-418-1777 for same-business-day quoted pricing.
Sizing & Selection
Capacity first, cone angle second, stand height third. Need help matching cone angle to your fluid? Call 866-418-1777 with your fluid, viscosity, and dosing requirements.
The Enduraplas 1550 Gallon Black Cone Bottom Tank with Stand (SKU THC01550KB) is a full-drain vessel for batching, mixing, and dosing where the tank has to empty completely between runs. It stands...
The Enduraplas 1350 Gallon Green Cone Bottom Tank with Stand (SKU THC01350KG) is built for full-drain chemical batching where you need every gallon to gravity-feed out the bottom. The tank stands 86...
The Enduraplas 1550 Gallon Green Cone Bottom Tank with Stand (SKU THC01550KG) is built for full-drain chemical batching, mixing, and storage where you need to empty the vessel completely between runs...
The 2000 Gallon 30 Degree Plastic Cone Bottom Tank in White (SKU SII-5070000N43) is a Snyder Industries polyethylene cone bottom tank built for full-drain processing where you need the entire...
The Snyder Industries 2000 Gallon Cone Bottom Tank (SKU 5070000N49) is a black polyethylene cone tank molded by Snyder Industries in Lincoln, Nebraska, and built for full-drain batch processing and...
The Norwesco 3000 Gallon 30 Degree HDPE Cone Bottom Tank is built for full-drain chemical and process service where you cannot leave residual product sitting in the bottom of a flat-floor tank. The...
The Snyder Industries 1500 Gallon 45 Degree XLPE Cone Bottom Tank in White is built for the jobs where a flat-bottom tank fails you: full drain of solids-bearing or settling chemistry.Molded in...
The Snyder Industries 1500 Gallon XLPE Heavy Duty Cone Bottom Tank (SKU 5010000N48) is built from crosslinked linear polyethylene (XLPE) and carries a 1.9 specific-gravity rating, which puts it at...
The Snyder Industries 2000 Gallon XLPE Cone Bottom Tank is a full-drain crosslinked polyethylene cone tank built for bulk chemical batching, dosing, and dewatering where you need the contents to...
The Snyder Industries 2000 Gallon XLPE Cone Bottom Tank (SKU 5070000N46) is built from crosslinked linear polyethylene rated to 1.5 specific gravity, which is what lets a single resin handle dense...
The Snyder Industries 2500 Gallon 30 Degree Cone Bottom Tank is built for full-drain chemical and process service where you need every gallon to evacuate cleanly.This white polyethylene cone bottom...
The Snyder Industries 2500 Gallon Cone Bottom Tank (SKU 5110000N49) is a black polyethylene cone-bottom tank built for full-drain chemical and process service where you need every gallon to evacuate...