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China Suppliers Factory Arc Spray Zinc Gun for Tube Mill | Weld Seam Repair & Corrosion Protection Solutions
Zinc Spray Gun for Tube Mill | Galvanizing Repair & Weld Seam Protection
In modern tube mill production, corrosion protection is not something you can ignore—especially at the weld seam. This is where a zinc spray gun becomes extremely practical.
Instead of relying only on traditional galvanizing, many factories today use zinc spraying as a fast and flexible way to repair damaged coating areas. It’s widely applied in weld seam protection, galvanized surface repair, and anti-rust treatment for steel pipes.
Compared with hot dip galvanizing, zinc spraying doesn’t require a full production process or immersion in molten zinc. It’s quicker, easier to control, and much more suitable for localized treatment or post-weld repair.
What is a Zinc Spray Gun?
A zinc spray gun is a thermal spraying device that melts zinc wire or powder and projects it onto a steel surface, forming a protective coating.
In simple terms, it allows you to “rebuild” the zinc layer exactly where it is needed.
Typically used in:
(1) ERW tube mills
(2) Steel pipe production lines
(3) Weld seam protection
(4) Galvanized pipe repair
Once applied, the zinc coating acts as both a barrier and a sacrificial layer, meaning it protects steel even if the surface is slightly damaged.
👉 That’s why it works so well in real factory conditions.
Instead of relying only on traditional galvanizing, many factories today use zinc spraying as a fast and flexible way to repair damaged coating areas. It’s widely applied in weld seam protection, galvanized surface repair, and anti-rust treatment for steel pipes.
Compared with hot dip galvanizing, zinc spraying doesn’t require a full production process or immersion in molten zinc. It’s quicker, easier to control, and much more suitable for localized treatment or post-weld repair.
FAB of our products
Key Features
- High deposition efficiency (less zinc waste)
- Stable and uniform spray pattern
- Adjustable coating thickness
- Compatible with zinc wire or powder
- Designed for continuous industrial use
Technical Advantages
- Lower zinc consumption
- Improved weld seam consistency
- Extended pipe service life
- Reduced rejection rate
- Easy integration into existing lines
Applications
- Steel pipe and tube production
- Seam anti-corrosion
- Repair of damaged galvanized surfaces
- Steel protection
- Marine and outdoor equipment
Why Zinc Spray Gun is Important in Tube Mill
During high-frequency welding, the original galvanized layer at the seam is usually burned off. If nothing is done:
- Rust can appear very quickly
- Pipe durability drops
- Export quality may fail inspection
Zinc spraying solves this problem directly. It restores the protective layer right after welding, helping the pipe maintain corrosion resistance without slowing down production.
From a practical standpoint, it’s not just protection—it’s quality control insurance.
Key attributes
| No. | Attribute | Value |
|---|---|---|
| 1 | MOQ | 1 Set |
| 2 | Payment | T/T, 50% deposit, 50% before delivery |
| 3 | Warranty | 12 months |
| 4 | OEM | Available |
| 5 | Package | Box |
Model
| Model NO. | Power (KW) | Gun amount | Wire diameter (mm) | Gas consumption (m³/min) | Application |
|---|---|---|---|---|---|
| SX-400 | 15 | 1 | 1.6-2 | 2.3 | Zinc, aluminum, partial repairing process |
| SX-500 | 18 | 1 | 1.6-2 | 3 | Hardware repairing, small project construction |
| SX-600 | 21.6 | 1 | 1.6-2 | 3 | Spray hard alloy wire, boiler construction |
| SX-800 | 28.8 | 2 | 2 | 4.6 | Spray zinc and aluminum in big area, works automatically |
| SX-1000 | 36 | 2 | 2 | 4.6 | Project construction, big quantity process, works automatically |
| SX-2000 | 72 | 4 | 2 | 9.2 | Project construction, big quantity process, works automatically |
| SX-4000 | 144 | 8 | 2 | 18.4 | Big project construction, long time spraying project, big quantity of spraying work |
Company Strength
- 10+ years experience in tube mill equipment
- Complete production line (machining, assembly, testing)
- Strict quality inspection system
- Professional R&D team for customization
- Large inventory & fast delivery
Our Service
Pre-sale
Technical consultation & model selection
In-sale
Production tracking & quality control
After-sale
Installation guidance & spare parts support
Frequently Asked Questions
What is the primary function of a zinc spray gun in a tube mill?
A zinc spray gun is used to melt zinc wire or powder and project it onto steel pipe surfaces, primarily to restore the corrosion-resistant galvanizing layer that gets burned off at the weld seam during high-frequency welding.
How does zinc spraying compare to traditional hot-dip galvanizing?
Unlike hot-dip galvanizing, zinc spraying does not require immersing the entire pipe in molten zinc or running a full production line. It is a faster, more flexible, and highly controlled method suited for localized repairs and post-weld seam protection.
What is the Minimum Order Quantity (MOQ) and warranty for the equipment?
The Minimum Order Quantity is 1 set, and the equipment comes with a 12-month warranty. OEM services are also available.
What models of zinc spraying equipment do you offer?
We offer models ranging from SX-400 (15KW, 1 gun) for small repairs, up to SX-4000 (144KW, 8 guns) designed for large-scale automatic industrial operations.
What services do you provide during the purchase process?
We provide comprehensive support: Pre-sale (technical consultation and model selection), In-sale (production tracking and quality control), and After-sale (installation guidance and spare parts support).
Inquire Now!
For inquiries about our products or pricelist, please leave your email to us and we will be in touch within 24 hours.