750 Gallon 45 Degree Cone Bottom Tank: Complete Buyer's Guide
A 750-gallon 45-degree cone-bottom tank from Norwesco pairing serious batch volume with the steepest drainage angle, in 1.5-specific-gravity polyethylene for thick mixes.
Specifications at a Glance
Every figure below is pulled straight from the live product record for this exact tank — the same data on the product page, so what you read here and what you buy never disagree.
Standards & Materials
- ASTM D1998 — Standard Specification for Polyethylene Upright Storage Tanks. Governs wall-thickness and hydrostatic design for vertical rotomolded poly tanks of this class.
- FDA 21 CFR 177.1520 — Olefin polymers. The food-contact regulation the FDA-grade resin in this tank is compounded to meet.
- Specific gravity rating 1.5 — the tank is engineered for liquids up to 1.5× the density of water (water is about 8.34 lb/gal). Confirm your fluid’s SG before storage.
Product Overview
The 750-gallon 45-degree cone-bottom tank pairs serious batch volume with the steepest drainage angle, making it the choice for fully discharging thick slurries and settling solids at three-quarters of a thousand gallons. The aggressive 45-degree cone clears viscous mixes that would cling in a shallower tank, at the cost of considerable height — 105 inches tall on a 52-inch diameter. The shell weighs 160 pounds.
Molded seamlessly from virgin linear polyethylene and rated to 1.5 specific gravity, it carries liquids up to 12.5 pounds per gallon. A translucent white wall makes the level visible and bounces sun to keep contents cooler; the resin meets FDA food-grade requirements.
The steep cone sits on a stand that carries the full load — about 9,542 pounds at the rated gravity — through its flange and legs, never the apex. The 2-inch center outlet is factory-fitted and leak-tested for clean draw, and the 12-inch lid eases interior access. Norwesco's 3-year warranty applies.
Technical Drawing
Official Norwesco technical drawing — 750 Gallon 45 Degree Cone Bottom Tank
Key Features and Specifications
- 750-gallon capacity — sized for full-drain mixing and batch processing
- Constructed from virgin linear polyethylene (HDPE) with 1.5 specific gravity rating — handles liquids up to 12.5 lbs/gal
- 105" tall x 52" diameter — compact vertical footprint
- 160 lbs empty, approximately 9,542 lbs when full at rated specific gravity
- 2" NPT outlet fitting — factory installed and leak-tested
- 12" lid opening for fill, venting, and interior access
- FDA approved for potable water and food-grade liquid contact
- 3 Year Warranty from Norwesco against manufacturing defects
- Translucent white walls allow visual level monitoring without opening the tank and reflect sunlight to keep contents cooler
- Rated for continuous service up to 120 F / 48 C
- Seamless one-piece rotational molding — no seams, no welds, no leak points
- Manufactured by Norwesco — a leading name in rotomolded polyethylene tanks
- Must be installed on the manufacturer-supplied or compatible stand rated for the full loaded weight. Never rest a cone bottom tank directly on its apex
- Ships via LTL freight — allow 2-3 weeks for delivery. Lift gate and residential delivery available at additional cost
Installation and Setup Guide
At 105 inches the 45-degree 750 is a tall assembly, and its higher center of gravity makes the stand and the pad the make-or-break elements. The stand carries the load; the cone apex never does.
Site Preparation and the Stand
Mount the tank on a compatible stand rated for the full 9,542-pound load, set on a four-inch compacted gravel pad or a concrete slab finished dead level so all legs share the weight. A tall steep-cone assembly is sensitive to a tilted base, so level carefully and anchor the stand per spec. Never rest the cone on the ground, and add containment where the chemistry warrants it. Confirm overhead clearance for the tall shell.
Placement and Connections
The tall stand leaves generous room for a full-port valve and drain line beneath the steep cone, which helps when discharging viscous batches. Plumb the 2-inch center outlet down through a short chemical-rated flexible connection, size the valve so it will not choke a thick mix, and match all seals to the chemistry.
Venting
Fit a lid vent so the tall tank breathes on fill and drain, and a chemistry-rated relief vent for off-gassing contents — the deep column makes adequate venting important.
Maintenance and Long-Term Care
The steep cone shines at cleanout, but the tall stand and the seals demand careful quarterly attention given the height.
Quarterly Inspection Checklist
- Stand: confirm the tall stand is sound, level, and evenly loaded — a 105-inch assembly is unforgiving of a leaning or settling stand.
- Cone and shell: inspect the 45-degree cone, the cone-to-sidewall transition, and the lower wall for stress whitening or bulging.
- Outlet and seals: check the 2-inch valve and gaskets for chemical attack and free operation, clearing any residue from viscous batches.
- Vent: verify the lid vent is clear.
Cleaning and Chemical Changeover
The 45-degree cone is the most thorough drainer at this volume, shedding thick mixes for a clean changeover with minimal residue. Run the manufacturer's decontamination protocol, capture rinsate for disposal, and confirm the new chemical suits the polyethylene and seals before refilling.
UV and Weather Protection
Because the white wall passes some light, shade light-sensitive or algae-prone contents in strong sun and give the wall a yearly inspection.
Alternatives and Comparisons
The 45-degree 750 is the heavy-slurry specialist of the 750-gallon cones — the steepest angle, the tallest build, and the best at draining thick mixes. For free-flowing liquids the 20-degree 750 (offered bare or stand-included) drains fine at far lower height. If complete drainage is not required, the flat-bottom 750 vertical stores the same volume without a stand.
Other 750-Gallon Options
Frequently Asked Questions
How long will the 750 Gallon 45 Degree Cone Bottom Tank last?
Within its 1.5 SG and 120 F ratings, with compatible chemistry and a sound, dead-level stand, expect 15 to 20 years. On a tall steep-cone assembly the stand's stability is especially decisive — keep it sound and the seamless shell reaches the long end.
What chemicals can I store in this tank?
At 1.5 specific gravity it manages ag chemicals, fertilizers, heavy slurries, and industrial solutions of that density, in FDA-compliant food-grade resin. Not for fuels, solvents, or flammables. Check the chemical and every elastomer against a compatibility chart before you fill.
What kind of foundation does a 750-gallon tank need?
The steep cone has no flat base, so the foundation supports a stand rated for the full 9,542-pound load, carrying the tank through its flange and legs and never the apex. At 105 inches the tall, high-center-of-gravity assembly makes a stable, dead-level stand on a four-inch gravel pad or concrete slab essential, with the stand anchored per spec. Never rest the cone tip on the ground.
Does this tank come with a warranty?
The tank carries three years of Norwesco warranty against defects in materials and factory workmanship. The warranty excludes overloading, a stand that is inadequate, chemical attack, and impact. Keep your receipt for any claim.
Can I install this tank underground?
No. Mounted on a stand above ground, a cone-bottom tank cannot be buried. Below-grade storage requires an underground-rated tank.
Buying Considerations
Confirm a compatible stand suited to the steep cone's 105-inch height, set dead level on a flat pad; a chemical at or under 1.5 SG compatible with the polyethylene and seals; and a freight plan, since this tall tank ships LTL by flatbed and needs a forklift to unload, plus overhead clearance to set onto its stand. Call us with your site details.
Related Products You May Need
Questions? Call (866) 418-1777 — our team knows these products inside and out and can help you select the right tank for your application.
Recommended Tanks for This Guide
Live pricing, updated automatically · estimate freight to your ZIP.
