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.
A 1500 gallon 45 degree cone bottom tank in cross-linked polyethylene
The Snyder Industries 1500 gallon 45 degree cone bottom tank, part number 5010000N42, is a white cross-linked polyethylene...
A 2,000 gallon natural white cone bottom tank, 90 inches across
Snyder Industries part number 5070000N40 is a 2,000 gallon cone bottom tank in natural white crosslinked linear polyethylene (XLPE)...
A 2,000 gallon black cone bottom tank for the yard or the plant room
Snyder Industries part number 5070000N46 is a 2,000 gallon cone bottom tank in black crosslinked linear polyethylene (XLPE). It...
A 2500 gallon black cone bottom tank, 90 inches across, for liquids up to 1.5 specific gravity
Snyder part number 5110000N49 is a 2500 gallon cone bottom tank in black polyethylene, 90 inches in...
A short, wide 2500 gallon black cone bottom tank for water and water-weight liquids
Snyder part number 8350000N49 is a 2500 gallon cone bottom tank in black polyethylene, 95 inches in diameter and...
A 2,500 gallon white cone bottom tank with a 30 degree cone, rated 1.5
The Snyder Industries 2500 gallon 30 degree plastic cone bottom tank, part number 8350000N43, is a white polyethylene tank 95...
A 2,500 gallon 30 degree cone bottom tank for ambient liquids up to 1.5
Snyder part number 5110000N43 is a 2,500 gallon cone bottom tank in white polyethylene with a 30 degree cone. It is 90 inches...
A 3000 gallon 15 degree cone bottom tank rated for heavy liquids, in light blue
The Norwesco 3000 gallon 15 degree cone bottom tank in blue, part number 45242, is a high density linear polyethylene...
An 80 cubic foot dry hopper bin with a 45 degree cone, tall and narrow for a small footprint
The Snyder Industries 80 cubic foot 45 degree cone bottom dry hopper bin, part number 6370719N95402, is a...
A 275 gallon cross-linked feed station with stand, 76 inches tall
Snyder part 5740104CFWS42 is a 275 gallon chemical feed station tank in white cross-linked polyethylene supplied with its stand. On...
A 1600 gallon heavy duty 30 degree cone bottom tank that arrives with its stand
The Norwesco 1600 gallon 30 degree cone bottom tank with poly stand, part number 40815, is a heavy duty polyethylene...
The Enduraplas 1600 Gallon White Cone Bottom Tank with Stand (SKU THC01600KW) is a full-drain chemical storage tank molded from natural white polyethylene and rated to a 1.9 specific gravity. The...