Heavy-Duty Galvanized Steel Stock Tank for Outdoor Use
You don’t want to keep replacing tanks every few years just because they can’t survive a little sun, salt, or structural load. That’s where YUTANK’s Heavy-Duty Galvanized Steel Stock Tank comes in.
Built from Q235B structural-grade steel, fully hot-dip galvanized inside and out, this tank is designed to handle extreme RAS aquaculture conditions, high-capacity grow-out operations, and even outdoor rooftop installations in coastal cities. It’s modular, relocatable, and strong enough to support thousands of liters of water without a single weld seam.
Whether you’re looking to expand your recirculating aquaculture setup or need rugged containment that won’t buckle in the heat — this tank is ready.
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The YUTANK Heavy-Duty Galvanized Steel Tank isn’t just any stock tank. It’s engineered specifically for commercial-scale aquaculture operations that demand long service life, structural integrity, and fast on-site deployment—even under tough conditions.
🔩 Construction That Holds Up
Each tank panel is made from Q235B carbon structural steel, laser cut and cold-bent for high load capacity. Then it’s fully hot-dip galvanized (not just electroplated), giving it a zinc layer thickness of 80–120μm that protects against seawater, UV rays, and corrosion in all-weather environments.
The walls are assembled using pre-drilled flanged panels joined with galvanized bolts and waterproof sealing tape. That means:
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No on-site welding
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No expensive coating repairs
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100% modular and relocatable
🛠 Flexible Configurations
Available in round and rectangular formats, these tanks range from 1.5 meters to 6 meters in diameter, with custom heights from 1m to 2.5m. They can also be tailored with inlet/outlet ports, overflow protection, slope-bottom drainage, or even canvas inner liners for enhanced hygiene in fish fry applications.
Whether you’re installing on rooftops, indoor farms, coastal outdoor grow-out sites, or mobile testing stations—this tank adapts to your plan.
🐟 Built for Aquaculture, Not Just Water
This isn’t a general-purpose metal tank. Every design choice—from the smooth interior for easy cleaning to lift lugs for crane hoisting—is made with RAS farms, hatcheries, and grow-out modules in mind.
You’re not just getting a tank. You’re getting a scalable infrastructure component that fits seamlessly into professional fish farming systems.
Here’s the technical breakdown of the Heavy-Duty Galvanized Steel Stock Tank based on verified YUTANK engineering parameters:
| Specification | Details |
|---|---|
| Material | Q235B carbon steel, hot-dip galvanized coating (Zn layer: 80–120μm) |
| Tank Shape Options | Round / Rectangular |
| Tank Diameter | Standard: 1.5m / 2m / 3m / 4m / 5m / 6m Custom sizes available |
| Tank Height | 1.0m / 1.2m / 1.5m / 2.0m / 2.5m |
| Panel Thickness | Typically 2.5–4.0 mm (customizable based on load requirements) |
| Assembly Method | Bolted panel system with EPDM sealing strip and galvanized bolts |
| Bottom Options | Open bottom / Reinforced steel plate / Sloped canvas liner (optional) |
| Inner Coating (Optional) | Food-grade PVC, EPDM, or PE canvas liner (based on application) |
| Structural Features | Lifting lugs, drain ports, inlet/outlet flange support, overflow fittings |
| Load Capacity | Up to 2.0 tons/m³ (liquid + biomass) depending on configuration |
| Corrosion Resistance | Suitable for seawater, acidic/alkaline environments, UV & extreme weather |
| Customization Support | CAD & 3D drawing services; port/flange positioning; integrated valves |
| Accessories | Net covers, anti-jump mesh, shade screens, thermometer ports, aeration kits |
🧰 Notes:
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Installation time: 1–3 hours depending on tank size and manpower
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Liner selection depends on whether you’re raising marine fish, freshwater species, or using for water storage
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Reinforcement options available for rooftop or soft-soil ground use
This configuration allows complete flexibility for farm-scale water handling, broodstock tanks, or backup quarantine systems.
1. Can these galvanized stock tanks handle salty or harsh environments?
Absolutely. Each tank is hot-dip galvanized inside and out with a protective zinc coating that resists corrosion—even in coastal or chemical-heavy environments. Whether you’re running RAS in salty climates or using them in rooftop farms exposed to wind and weather, they’re built to last.
Bonus: The steel grade is SS400 or Q235B, depending on spec—both tough enough to shrug off rust and wear under constant water exposure.
2. How fast can I install these tanks on-site?
These tanks are designed for quick assembly. We use modular curved panels that are pre-punched and ready for bolt-together installation—no welding or heavy lifting gear needed.
A typical 20 m³ unit? One team, a few hours, minimal tools.
Need to relocate your facility? Just unbolt and move. The tanks are built for that kind of flexibility.
3. Are custom sizes or shapes available?
Yes, that’s one of the main reasons clients work with YUTANK. We offer custom diameters, heights, inlet/outlet positions, and more. You can even provide CAD or 3D sketches—we’ll match them.
Want a 10-ton circular tank for fry rearing? Or a 25-ton elliptical tank for rooftop grow-out modules? We’ve probably already built one like it.
4. What’s the lifespan of a galvanized steel stock tank?
With proper use and occasional inspections, most clients see 10–15+ years of service life, even outdoors. That’s thanks to:
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High-zinc galvanized finish (275g/m² coating)
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Seamless internal waterproof lining (EPDM, PVC, or geomembrane)
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Rigorous leak and pressure testing before delivery
5. Can I get a waterproof liner included?
Of course. Most tanks ship with custom-fit liners made from EPDM or PVC, depending on your water chemistry and temperature range.
Pro tip: For saltwater systems, EPDM liners typically outperform PVC in the long run.
6. What’s the difference between this and a plastic PP tank?
Great question. Think of it like this:
| Feature | Galvanized Steel Tank | Honeycomb PP Tank |
|---|---|---|
| Structure | Rigid metal | Modular thermoplastic |
| UV Resistance | Excellent | Good (UV-stabilized) |
| Custom Shape | Limited | Fully customizable |
| Relocation | Moderate effort | Very easy |
| Price | Lower | Higher (due to modular tech) |
If you’re looking for a cost-effective, durable, and quick-to-deploy solution—especially for large volumes—galvanized tanks are the better fit.
7. Do you support bulk orders or OEM branding?
Yes. We’ve shipped tanks to 20+ countries, including full-container orders to aquaculture farms, research institutions, and engineering firms.
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MOQ for customization: 3–5 units
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OEM: Logos, color, liner print, labels
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Lead Time: 10–18 days typical for stock sizes
8. Do I need to worry about transport damage?
Not really. We use steel-reinforced packaging, wrap each panel with PE foam, and stack them to minimize shift. Liner packs are vacuum-sealed. It’s how we keep damage claims <1% year after year.
9. Can I use this tank for non-aquaculture purposes?
Definitely. Our clients have used them for:
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Emergency water storage
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Temporary firefighting reservoirs
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Hydroponics & fertigation basins
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Rainwater harvesting
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Industrial chemical holding
If it needs to hold liquid safely and stay intact outdoors—this tank can probably handle it.
✅ Still have questions? Shoot us your CAD drawings, volume specs, or project layout—we’ll get back within 24 hours with a tailored suggestion.
