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 Chem-Tainer 30 Gallon 20 Degree Plastic Vertical Cone Bottom Tank (SKU TC1829CB) is a polyethylene open-top cone bottom tank built to fully drain. At 19 x 19 inches across the base and 29 inches...
The Snyder Industries 150 Gallon Black Heavy Duty Cone Bottom Mixing Tank is built for chemical and fertilizer service where the contents need to drain completely and stay blended.Molded in high...
The Norwesco 100 Gallon 15 Degree Cone Bottom Tank (SKU N-41461) is a full-drain polyethylene vessel built for batching, mixing, and dispensing where you want every last gallon out the bottom.It...
The Chemtainer 30 Gallon 20 Degree Open Top Cone Bottom Tank (SKU TC1840AP) is a compact vertical polyethylene tank built for full-drain chemical batching and mixing. The 20-degree cone bottom and...
The Snyder Industries 110 Gallon Open Top Batch Storage Tank is a cone-bottom batch vessel molded in cross-linked polyethylene (XLPE), rated to a 1.9 specific gravity, standing 46 inches tall on a...
The Snyder Industries 110 Gallon Heavy Duty Cone Bottom Mixing Tank (SKU 6070000N51) is a black cone bottom tank molded in high density linear polyethylene and rated to a 1.9 specific gravity. That...
The Norwesco 85 Gallon Inductor Tank with Stand Combo (SKU N-40353) pairs a closed-top cone-bottom polyethylene tank with its matched stand, so you can drain and mix from a raised, fully supported...
The Chem-Tainer 100 Gallon 60 Degree Cone Bottom Inductor Tank is a white polyethylene cone bottom tank built for batch chemical mixing and full-drain induction work where you want the contents to...
The Norwesco 110 Gallon Inductor Tank w/Stand Combo (SKU N-40354) is a closed-top, cone-bottom polyethylene tank built for full-drain batching and chemical induction, shipping with its matched stand...
The 160 Gallon 45 Degree Cone Bottom Tank from Norwesco (SKU N-43845) holds 160 gallons in a steep 45-degree cone that drains thick or settling product completely, leaving no flat floor for sediment...
The Snyder Industries 150 Gallon Heavy Duty Cone Bottom Mixing Tank is a 48-inch-tall, 36-inch-diameter cone tank molded in Natural White High Density Linear Polyethylene (HDLPE) and rated to a 1.9...
The Norwesco 150 Gallon Cone Bottom Tank (SKU N-41467) is a polyethylene cone-bottom vessel built for chemical metering, mixing, and full-drain batch work where you cannot leave product sitting on a...