Zinc-Tech™ In-Line Galvanizing Process

Elevate Your Manufacturing with Advanced In-Line Galvanizing

At Superior Technologies Inc., we deliver precision-engineered in-line galvanizing systems that redefines how steel tubes, pipes, conduits, solar torque tube and scaffolding are finished. Our flagship Zinc-Tech™ process offers an eco-friendly, high-performance alternative to conventional hot-dip galvanizing, delivering consistent zinc coatings ranging from 50 to over 250 g/m²

STI pipe final

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Faster Turnaround: Convert slit coils into galvanized finished goods in as little as 30 seconds.
Uniform Zinc Coating: Seamless coverage, including weld seams, with unmatched surface brilliance.
Eco-Friendly Process: Minimal energy and chemical use, significantly reducing your carbon footprint.
Cost-Efficient: Maximize ROI through reduced labor, lower zinc consumption, and compact line design.
Industry 5.0 Adoption: Developing real-time monitoring with AI and machine learning integration for smart manufacturing.
Turn-Key Integration: Compatible with most of the systems.

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Who Benefits from Our Technology?

Electrical conduit manufacturers (EMT, IMC)
Fence tubing manufacturers
Greenhouse structures tubings manufacturer
Scaffolding producers
Heating system tubings manufacturers
Conveyor system tubings manufacturer
Solar torque tube manufacturers
Other galvanized tube & pipe manufacturers
OEMs & infrastructure suppliers

Whether you're scaling production or aiming to meet strict international quality standards, Zinc-Tech™ empowers you to lead with confidence.

Our system powers production lines across Globe, helping companies meet rigorous quality and environmental standards.

Join the next generation of galvanizing excellence.

Engineered for Uniformity. Designed for Durability.

360° Zinc Protection with Zinc-Tech™ In-Line Galvanizing

With Zinc-Tech™ In-Line Galvanizing, your products receive full exterior coverage, including over the weld seam—ensuring consistent 360-degree protection against corrosion. Our advanced zinc coating process eliminates the common issue of weld line rust, safeguarding your brand reputation, product performance, and customer trust.

Unlike traditional hot-dip galvanizing, Zinc-Tech™ allows precise zinc coating control from 50 to over 250 g/m², ensuring superior corrosion resistance across a wide range of steel tubulars.

Whether you're manufacturing short lengths or continuous profiles, Zinc-Tech™ applies a uniform, high-quality zinc coating that adheres seamlessly to the entire surface—ensuring performance, durability, and compliance with international standards.

Brilliant, Smooth Finish with Zinc-Tech™

Superior Surface Appearance That Elevates Your Product

Unlike traditional hot-dip galvanizing, which involves batch processing and manual handling, the Zinc-Tech™ In-Line Galvanizing System uses a continuous, integrated process that delivers a high-luster, smooth finish directly on the production line.

This advanced galvanizing technology eliminates the limitations of conventional hot-dip methods, where products must be manufactured, stored, and then processed through multiple stages—pickling, rinsing, drying, fluxing, zinc immersion, quenching, and bundling. These steps not only require extensive space and labor but also increase the risk of handling damage and inconsistent finish quality.

Streamlined, High-Performance Galvanizing

With Zinc-Tech™, everything is integrated into the tube mill line:

Inline surface preparation and zinc coating
No additional work in progress inventory or off-line transfers
Consistent zinc coating thickness control in real time
The galvanized steel pipe production line with Zinc-Tech™ system can be operated efficiently with as few as 2–3 personnel

Whether you're producing structural tubes, conduits, or scaffoldings, Zinc-Tech™ ensures your product exits the line with a premium, brilliant finish—ready for shipment or installation.

Stand Out with Surface Quality

Products galvanized using Zinc-Tech™ not only meet performance standards but also exceed visual expectations—making them more appealing in competitive markets and enhancing your brand’s value.

Thick, Free Zinc Layer for Maximum Corrosion Resistance

Consistent Weld Seam Protection with Superior Zinc Purity

With Zinc-Tech™ In-Line Galvanizing, your tubes and pipes receive a fully fused, high-purity zinc coating across the entire outer surface—including the critical weld seam, post-welding. Unlike pre-galvanized strip material where the weld seam is often the weak link, Zinc-Tech™ ensures uniform protection over the full circumference of the product, drastically reducing the risk of corrosion failures.

Why Weld Seam Protection Matters

Pre-galvanized strips, when welded, expose the seam to heat-affected zones where metallization often fails over time. Zinc-Tech™ avoids this by applying a thick, ductile pure zinc coating after welding, offering the same level of corrosion resistance at the seam as the rest of the tube—a major advantage over conventional methods.

Highest Free Zinc Content in Its Class

Unlike traditional hot-dip galvanizing, which forms a significant portion of brittle zinc-iron alloy layers, Zinc-Tech™ delivers a coating that is:

Composed of up to 80% pure, free zinc
Up to 3x thicker in free zinc than alternative processes
More ductile, resilient, and better at resisting corrosion over time

Our process promotes a dense, well-bonded adhesion layer, while maximizing the upper protective layer with pure zinc, which actively guards against environmental degradation.

Stronger Product by Design

Boost Mechanical Strength with Zinc-Tech™ In-Line Galvanizing

Unlike conventional Hot-Dip Galvanizing, which may reduce material integrity due to prolonged heat exposure, Zinc-Tech™ In-Line Galvanizing rapidly heats and cools the tube during the zinc application process—enhancing both tensile and yield strength.

Higher Strength. Greater Value.

Zinc-Tech™ galvanized tubes consistently outperform hot-dip galvanized products in mechanical strength tests. The process supports improved grain structure and surface integrity, making the finished product:

Stronger and more impact-resistant
Better suited for load-bearing applications
Ideal for thinner wall designs—without sacrificing performance

If using low-carbon steel, you can expect significant gains in strength post-galvanizing. When higher-grade raw materials are used, proportional strength increases are also maintained—ensuring reliable performance in demanding applications.

Customer Benefits & Market Advantage

Your customers get more than just corrosion resistance—they get superior strength, which opens up new possibilities for:

Electrical conduit manufacturers (EMT, IMC)
Fence tubing manufacturers
Greenhouse structures tubings manufacturer
Scaffolding producers
Heating system tubings manufacturers
Conveyor system tubings manufacturer
Solar torque tube manufacturers
Other galvanized tube & pipe manufacturers
OEMs & infrastructure suppliers

Key Benefits

Lowest cost of conversion

Zinc-Tech™ In-Line Galvanizing significantly reduces raw material waste, labor dependency, and energy usage—delivering the industry's lowest cost-per-ton conversion when compared to traditional hot-dip and other galvanizing methods.

Unmatched production versatility.

Achieve unmatched production flexibility with Zinc-Tech™—galvanize products of virtually any length at full line speed, without the limitations of kettle size found in traditional hot-dip processes

Improve factory floor utilization

Maximize factory floor efficiency by seamlessly integrating Zinc-Tech™ In-Line Galvanizing with your existing tube mill—requiring just 30–40 meters of additional line space for full-scale implementation.

Continuous and uninterrupted operation

Streamline production with one continuous, uninterrupted galvanizing operation—eliminating costly work-in-process inventory, excess material handling, and damage risks common with offline or batch galvanizing methods.

Environmentally Friendly

Go beyond compliance with an eco-friendly galvanizing process engineered to significantly reduce chemical usage, minimize by-product generation, and support sustainable manufacturing goals.

Smart Factory Solutions

Consistently deliver top-tier galvanized products with integrated process automation and Smart Factory solutions—ensuring precision, reliability, and quality at every stage of production.

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Tour some of the Zinc-Tech™ product end uses

For electrical conduit products, nothing matches the quality and efficiency of the Zinc-Tech™ in-line galvanizing process.

For farming and agriculture purposes, our triple-coated, non-porous exterior prevents bacteria from penetrating the surface of products.

For fencing, our superior zinc coating composition, surface treatment, and available top coats provide the ultimate protection against white rust.

In greenhouse structures, Zinc-Tech™ allows for the use of lighter wall material, resulting in cost savings for your customers.

Zinc-Tech™ allows you to produce products that accurately match material consumption to customer specification.

What our customers say

“

The staff at Superior Technologies trained our staff on running the new technology and in a very short time our staff was running the line smoothly and we were able to produce a wide range of good quality products which were later certified by UL.

H. Mawlawi

General Manager at International Tube and Conduit Company Ltd.

“

From the beginning through to the aftermarket support, Superior Technologies has been very supportive and responsive to our questions and needs. They work more as partners than suppliers.

R. Itzkowich

CEO - Quality Tube

“

Superior Technologies have been a pleasure to work with and have a vast amount of knowledge and experience relating to the tube industry. Anytime there was a question or feedback requested, Mr. Chifo or his staff were available to address any items.

Y. Jeong

President - JAS Jeongan Hi-Tube Company

“

With the Zinc-Tech process we are able to export quality pipes and compete with the US products.

J. Mischne

General Manager - Conduit, S.A. de C.V.