Norwesco 500 Gallon Horizontal Elliptical Cradle Tank in White

The Norwesco 500 Gallon Horizontal Elliptical Cradle Tank in white is a haul-and-store polyethylene tank built to ride in a cradle or transport frame while you move liquid across a farm, jobsite, or route.It holds 500 gallons, measures 82" long by 57" wide by 44" high, and ships empty at 154 lb.The elliptical horizontal profile keeps the center of gravity low so the load stays planted during transport, and the tank carries a 1.5 specific gravity rating - meaning it is engineered to hold contents up to 1.5 times the density of water.It comes standard with a 16" lid for filling and inspection and a 1.25" outlet for draining.

Will it work for your liquid?

Start with weight, because that is what breaks tanks and trailers.Filled with water, the contents alone weigh about 4,170 lb; at the tank's full 1.5 SG rating the contents can reach roughly 6,255 lb.Confirm your cradle, trailer, and axle rating carry that number before you fill.The 57" x 82" footprint tells you the cradle bed you need.If you are matching gallons to a job, run the numbers through our Tank Sizing Calculator and Tank Sizing Guide.This tank is FDA approved and rated to a maximum temperature of 120 F / 48 C, so keep hot fills below that line.Buyers shopping this size often search "500 gallon horizontal" or "elliptical cradle" tanks - this is the Norwesco white unit that fits those searches.

Chemical compatibility

Norwesco lists this as a polyethylene tank rated to 1.5 specific gravity; the exact resin grade (HDLPE vs XLPE) is unconfirmed on our file, so confirm it with us before any chemical service.Compatibility is always concentration- and temperature-specific, per the Snyder Industries OEM chemical resistance chart - verify your exact chemical, concentration, temperature, and the fitting and gasket materials for your build.

Within its 1.5 SG rating, this tank suits chemicals including acetic acid (60%), aluminum sulfate (50%), calcium chloride (40%), ferrous sulfate (20%), magnesium chloride (30%), and sodium carbonate (30%) - most calling for PVC or PP fittings with EPDM gaskets.Two ag fluids are worth flagging for haul fleets: DEF (32.5%) and urea solution (50%) require only 1.5 SG, so this 1.5-rated tank clears them with margin (DEF pairs with 316SS fittings and EPDM).Ozonated water up to 10 PPM is also compatible within rating - call for details.

Denser or more aggressive chemicals exceed this tank's 1.5 rating and need a tank rated to 1.9 SG instead - including ethylene glycol, ferric chloride (50%), hydrochloric acid (37%), hydrogen peroxide (50%), phosphoric acid (85%), sodium hypochlorite, and sulfuric acid (98%).Note the gasket shift on that aggressive/oxidizer group: HCl, hydrogen peroxide, phosphoric acid, sodium hypochlorite, and sulfuric acid call for Viton rather than EPDM, and peracetic acid (30%) needs Aflas.Ask us and we will point you to the correct higher-SG unit; full details are on our chemical compatibility pages.

The mistake to avoid

The costly error on a cradle tank is filling a dense chemical past the 1.5 SG rating - a heavier liquid overloads the wall and the cradle.Match the SG of your contents to the tank rating, and confirm the resin grade before any chemical service.See the technical drawing on this page for the fitting and lid layout before you plumb it.

This tank ships LTL freight, quoted live to your ZIP, from the nearest Norwesco plant - Fairfield, TX; Griffin, GA; Hanford, CA; Lancaster, OH; St.Bonifacius, MN; or Tooele, UT.Get a freight quote through our Freight Cost Estimator or call 866-418-1777 and we will quote it for you.