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 Norwesco 30 Gallon 57 Degree Cone Bottom Inductor Tank (SKU N-42065) is a 1.5 specific-gravity polyethylene cone tank built for batching, mixing, and inducting chemicals into a process line.It...
This 35 Gallon 30 Degree HDPE Cone Bottom Tank from Snyder Industries is built for chemical service where you need every drop to drain. The full 30 degree cone empties to a point, which matters when...
The Snyder Industries 60 Gallon Black Heavy Duty Cone Bottom Mixing Tank (SKU 32419B) is a high density linear polyethylene cone tank rated to 1.9 specific gravity, built for aggressive chemical...
The Snyder Industries 35 Gallon Heavy Duty Cone Bottom Mixing Tank is built for full-drain chemical batching where you need every gallon to evacuate through the cone. Molded in black High Density...
The 40 Gallon 40 Degree Cone Bottom Inductor Tank from Norwesco (SKU N-44978) is a 40-gallon white polyethylene cone-bottom inductor built for mixing, batching, and full-drain chemical dosing. The...
The Snyder Industries 17 Gallon 60 Degree HDPE Cone Bottom Tank is a compact white polyethylene mixing and batching vessel built for small-volume chemical work where a steep 60-degree cone drains the...
The 15 Gallon HDLPE Cone Bottom Tank with Sump from Snyder Industries is a compact full-drain vessel built for chemical metering and batch work where you cannot afford a heel of product sitting in a...
The Snyder Industries 15 Gallon Heavy Duty Open Top Cone Bottom Mixing Tank is built for small-batch chemical mixing, dosing, and day-tank service where you need to see and access the contents from...
The Snyder Industries 17 Gallon Heavy Duty Cone Bottom Mixing Tank is a small-footprint cone bottom built for chemical mixing and full-drain batch work. It holds 17 gallons in a 19 x 19 inch...
The Norwesco 60 Gallon 57 Degree Cone Bottom Inductor Tank (SKU N-42066) is a white polyethylene cone-bottom tank built for batching, mixing, and draining liquids completely.The steep 57-degree cone...
The 60 Gallon 45 Degree Cone Bottom Inductor Tank (Norwesco, SKU N-62205) is a 60-gallon polyethylene cone-bottom tank built for batch mixing, chemical induction, and full drainage.The 45-degree cone...
The Snyder Industries 60 Gallon Heavy Duty Cone Bottom Mixing Tank is a 60-gallon cone bottom tank molded in 1.9 specific gravity High Density Linear Polyethylene (HDLPE), built for agitating and...