The 4400 Gallon 30 Degree Plastic Cone Bottom Tank from Snyder Industries is a 90-inch-square-footprint, 200-inch-tall poly process tank built for full-drain chemical handling. Molded in white polyethylene and rated to carry contents up to 1.9 specific gravity, it runs a 30-degree cone bottom for complete emptying of slurries, settled solids, and heavy chemistries that strand in a flat-bottom tank. At 200 inches tall over a 90 x 90 inch base, it is a tall, narrow column - roughly a 2.2-to-1 height-to-width ratio - so the structural stand and anchor pattern carry more of the load story here than on a squat tank. This page covers the specs, fittings, freight, and the one resin decision to settle before chemical goes in it.
Specs and fittings: will it work for your process?
The tank holds 4400 gallons in a 90.0 x 90.0 inch footprint and stands 200 inches tall, so plan overhead clearance and steel before delivery. Two weights drive the engineering: filled with water it carries 36,696 lb, and at the full 1.9 specific gravity rating the maximum contents weight reaches 69,722 lb. Size the support stand, anchor pattern, and slab to the higher number, not the water figure. Run it through our Tank Sizing Calculator and the Tank Sizing Guide to confirm capacity and head pressure against your fill rate.
Per the technical drawing on this page, the tank carries three distinct penetrations: an 18-inch PE threaded/vented fitting for fill and venting, a manway with 15-inch access for inspection and cleaning, and a flange as the separate cone discharge outlet. Reference the technical drawing on this page for fitting locations and elevations before you plumb the cone. If you are weighing 30-degree against 15- or 45-degree cones, our cone bottom tank buyer's guide walks through how cone angle changes drain behavior and stand height.
Chemical compatibility
This is a polyethylene tank rated to carry contents up to 1.9 specific gravity. That rating is structural - it means the shell can support a dense load - and is separate from chemical resistance, which depends on the resin and the trim you pair with each chemical. The resin is recorded as HDLPE with an open question, so confirm whether your unit is HDLPE or XLPE with us before committing it to chemical service; the distinction changes long-term resistance to certain oxidizers and solvents. Always size fitting and gasket materials to the chemical, and verify your exact concentration and temperature against the OEM chemical-resistance chart, which is concentration- and temperature-specific. Rated to 1.9 SG, this tank already sits at the top of the standard poly range, and no higher-SG variant of this size is in our catalog - for denser contents, talk to us about alternate construction.
The compatible chemicals fall into a few clear trim tiers. Most run an EPDM gasket with PVC fittings: aluminum sulfate at 50%, calcium chloride at 40%, ethylene glycol at 100%, ferric chloride at 50%, ferric sulfate at 60%, ferrous sulfate at 20%, magnesium chloride at 30%, polyaluminum chloride, potassium carbonate at 50%, potassium hydroxide saturated, sodium carbonate at 30%, sodium thiosulfate at 40%, ozonated water up to 10 PPM, plus sodium bisulfate and sodium bisulfite on PVC/PP fittings. Acetic acid at 60%, hydrofluoric acid at 48%, hydrofluosilicic acid at 26%, and urea solution at 50% step up to PP/PVC fittings.
The aggressive oxidizers and strong acids switch the gasket to Viton: hydrochloric acid at 37%, hydrogen peroxide at 50%, phosphoric acid at 85%, sodium hypochlorite below 16.5%, and sulfuric acid at 98% (which moves to CPVC fittings). Peracetic acid at 30% is its own case, calling for 316SS fittings and an Aflas gasket. A few service chemicals run metal trim rather than PVC: DEF at 32.5% uses 316SS fittings with EPDM, and propylene glycol and zinc orthophosphate run PP/316SS with EPDM. Matching the wrong gasket to a strong oxidizer - EPDM where Viton or Aflas is called for - is the most common failure on tanks like this. Cross-check your chemical, concentration, and temperature against our Chemical Compatibility Database before ordering trim.
Freight and how to order
This cone bottom tank ships LTL freight from Snyder Industries in Lincoln, Nebraska, and freight is quoted live to your ZIP code - we never bury freight in the list price. At 200 inches tall, this is an oversized LTL shipment that needs forklift or crane offload, so plan your receiving before you order. Pull a live LTL number with our Freight Cost Estimator, or call 866-418-1777 to confirm fittings, resin (HDLPE vs XLPE), and a delivery appointment. Searching for a cone bottom tank, cone tank, or white Snyder cone? Reach out and we will spec the right stand and trim package to land it correctly the first time.
