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 1600 Gallon Black Cone Bottom Tank with Stand is a full-drain vessel built for batching, dosing, and chemical storage where the tank has to empty completely by gravity.Molded from...
The Enduraplas 1600 Gallon Green Cone Bottom Tank with Stand (SKU THC01600KG) is built for full-drain chemical batching and storage where you need every gallon to empty through the bottom.The...
The Enduraplas 1600 Gallon 15 Degree Vertical Cone Bottom Tank with Stand (SKU EP-THC01600K) is a closed-top polyethylene tank built for full-drain chemical and process service.It holds 1,600 gallons...
A low, wide 1,600 gallon heavy duty cone bottom tank in natural white
Snyder Industries part number 8330000N42 is a heavy duty 1,600 gallon cone bottom tank in natural white crosslinked linear...
The 1200 Gallon White Cone Bottom Tank with Stand from Enduraplas (SKU THC01200KW) is built for full-drain batching and chemical dosing, where you need every gallon to gravity-feed out the bottom...
The Enduraplas 1200 Gallon Black Cone Bottom Tank with Stand (SKU THC01200KB) is built for full-drain batching and chemical dosing where you need every gallon to leave through the bottom. The tank...
The Enduraplas 1200 Gallon Green Cone Bottom Tank with Stand (SKU THC01200KG) is a full-drain vessel built for batching, dosing, and settling applications where you need every gallon to evacuate...
A 2,500 gallon natural white cone bottom tank that stands 104 inches tall
Snyder Industries part number 8350000N40 is a 2,500 gallon cone bottom tank in natural white crosslinked linear polyethylene...
A 2,500 gallon black cone bottom tank, 95 inches wide and 104 inches tall
Snyder Industries part number 8350000N46 is a 2,500 gallon cone bottom tank in black crosslinked linear polyethylene (XLPE),...
A 2,500 gallon natural white cone bottom tank on the 90 inch shell
Snyder Industries part number 5110000N40 is a 2,500 gallon cone bottom tank moulded in natural white crosslinked linear...
A 2,500 gallon black cone bottom tank on the 90 inch shell
Snyder Industries part number 5110000N46 is a 2,500 gallon cone bottom tank in black crosslinked linear polyethylene (XLPE). It is 90...
A 40 cubic foot dry hopper bin with a 45 degree cone for powders, pellets and granules
The Snyder Industries 40 cubic foot 45 degree cone bottom dry hopper bin, part number 6370540N95402, is a white...