Steel-lined polyethylene tanks, also known as steel-plastic lined tanks, steel-plastic composite tanks, steel-plastic tanks, plastic-steel tanks, outer steel inner plastic tanks, steel inner-lining tanks, carbon steel lined plastic tanks, etc., have a usage history of approximately 20 years in our country.

Product Features of Steel Lined PE Storage Tanks

The steel-lined PE storage tank has a monolithic polyethylene lining that is seamless, leak-proof, and highly impact-resistant with excellent tensile strength, good anti-oxidation and anti-aging properties, and meets the hygiene standards for food and beverage use.

2. Standard storage tank usage conditions are room temperature and atmospheric pressure; under special design requirements, the steel-lining plastic storage tanks can be used under temperatures below 90℃ and pressures below 2-3 kg/cm².

3. The steel-lined PE storage tanks offer significant advantages for large-scale, high-capacity, and bulky products, with a capacity reaching up to 200 cubic meters. Despite their large size, they maintain the unique feature of being formed in one piece, which is unattainable by other storage tank technologies.

4. Steel-lined polyethylene tanks, due to the superior performance of linear low-density polyethylene (LLDPE) and the unique structure of rotational molding tanks, have a service life of over 10 years. Steel-lined polyethylene tanks range from 1 to 50 to 100 to 150 cubic meters.

5. The steel-lined PE storage tank boasts exceptional chemical resistance, withstanding the majority of solutions, except for a few that can cause it to swell.

6. The steel-lined PE storage tanks offer high rigidity, compensating for the weaknesses of plastic tanks in terms of rigidity and temperature resistance. The tank shape and interfaces can be customized (with suitable diameter-to-height ratios for easy transportation), and our technical department can design and manufacture according to your specifications.

7. Compared to traditional anti-corrosive steel-lined plastic storage tanks, our solution offers a lower price point with a higher performance-to-cost ratio.

Superiorities of Steel-Lined PE Storage Tanks:

1. Stored outdoors, this solution avoids the drawback of surface aging in all-plastic storage tanks, ensuring a longer service life.

2. The steel shell boasts excellent pressure and impact resistance, maintaining its shape over long-term use, particularly for vertical storage tanks.

3. The inner layer of LLDPE boasts excellent anti-corrosion properties. It can withstand most chemical corrosive liquids, including most acids, bases, and salts, with the exception of most esters, ethers, ketones, and benzene liquids.

4. Safe and fire-resistant, suitable for environments requiring flame retardancy.

Products processed through rotational molding technology using pure polyethylene (LLDPE) material and steel tank bodies. This includes an outer carbon steel layer, an inner polyethylene corrosion-resistant layer, and a middle layer of two interlocked turtle shell steel grids, tightly bonded together through thermal melting, forming a steel-plastic composite product.