550 Gallon 20 Degree Cone Bottom Tank with Poly Stand

The Norwesco 550 Gallon 20 Degree Cone Bottom Tank (SKU N-44649) is a closed-top polyethylene vessel that drains completely through its 20-degree cone, mounted on a matching poly stand for full gravity discharge.It holds 550 gallons, measures 73" in diameter and 58" tall, weighs 274 lbs empty, and comes with a 16" lid and a 2" outlet at the cone tip.It carries a 1.5 specific gravity rating and is FDA approved, with a maximum service temperature of 120 F / 48 C.This is the tank people search for as a "550 gallon 20 degree cone bottom" mixing or batching tank on a stand.

Will it work for your job

Cone-bottom-with-stand tanks exist for one reason: to empty themselves and keep solids from settling on a flat floor.The 20-degree cone on this Norwesco unit sheds product toward the 2" outlet, and the poly stand raises that outlet high enough to plumb a valve and drain into a container or transfer pump.Because the tank stands 58" tall overall, check your clearance under the outlet for the tote, drum, or pump you plan to drain into.The 16" lid gives you top access for filling, mixing, or mounting a mixer.Size your capacity before you buy — use our Tank Sizing Calculator and Tank Sizing Guide, and read the 550 Gallon 20 Degree Cone Bottom Tank Complete Buyer's Guide for a full walkthrough.Cone tanks are rated by contents weight, not just gallons: full of water this tank carries about 4,587 lbs, and at its 1.5 SG rating it is engineered for up to roughly 6,880 lbs of contents.Confirm your footprint fits — it stands on a 73" diameter base.

Chemical compatibility

This is a polyethylene tank rated to 1.5 specific gravity.The resin is tabbed HDLPE in our records but not yet confirmed — confirm HDLPE versus XLPE (crosslinked) before committing it to chemical service, since that choice changes what it can hold.The compatibility data below is drawn from the Snyder Industries OEM chemical-resistance chart, applied at matching resin and SG, and is concentration- and temperature-specific; verify your exact chemical, concentration, temperature, and fitting and gasket materials before ordering.The tank ships with a 2" outlet and 16" lid but no fittings or gaskets configured — those are quoted separately and sized to your chemical, so the outlet does not arrive plumbed for your service.

At the 1.5 SG rating, this tank suits: Acetic Acid (60%), Aluminum Sulfate (50%), Calcium Chloride (40%), DEF (32.5%), Ferrous Sulfate (20%), Magnesium Chloride (30%), Sodium Carbonate (30%), Urea Solution (50%), and Ozonated Water (up to 10 PPM).Most of these call for PVC fittings with EPDM gaskets, while acetic acid and urea accept PP or PVC with EPDM.DEF and urea solution only require a 1.5 SG tank, so this 1.5-rated unit stores them with headroom — but note DEF specifically calls for 316 stainless fittings with EPDM rather than PVC, so budget for that fitting if DEF is your service.

Some chemicals need a higher-SG tank than this one — do not run them here.Ethylene glycol (100%), ferric chloride (50%), ferric sulfate (60%), hydrochloric acid (37%), hydrofluoric and hydrofluosilicic acid, hydrogen peroxide (50%), peracetic acid (30%), phosphoric acid (85%), polyaluminum chloride, potassium carbonate and potassium hydroxide, propylene glycol, sodium bisulfate, sodium bisulfite, sodium hypochlorite (<16.5%), sodium thiosulfate, sulfuric acid (98%), and zinc orthophosphate all require a 1.9 SG tank, and several also demand Viton or Aflas gaskets rather than EPDM. Running any of these? Call 866-418-1777 and we'll spec you a 1.9 SG-rated tank. Cross-check everything in our Chemical Compatibility Database before you buy.

Freight and how to order

This tank ships LTL freight, quoted live to your ZIP, from the nearest Norwesco plant — Hanford, CA or Tooele, UT.Get a freight quote in seconds with our Freight Cost Estimator, or call 866-418-1777 and we'll confirm the resin, size the fittings and gaskets to your chemical, and lock in freight from the closest plant.See the technical drawing on this page for exact dimensions and outlet placement before you plumb it.

3 Year Warranty