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China Zinc Spray Gun for Tube Mill | Suppliers & Factory for Weld Seam Galvanizing Repair & Corrosion Protection
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.
You’ll typically find it used in:
- ERW tube mills
- Steel pipe production lines
- Weld seam protection
- 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 | Detail |
|---|---|---|
| 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
Why do weld seams on galvanized pipes require zinc spraying?
During the high-frequency welding process in tube mills, the original galvanized layer at the seam is burned off. Zinc spraying restores this protective layer immediately after welding to prevent rapid rusting and maintain the pipe's overall corrosion resistance.
What are the advantages of zinc spraying over hot-dip galvanizing?
Unlike hot-dip galvanizing, zinc spraying does not require a full production line setup or immersion in molten zinc. It is a faster, more flexible, and highly controllable method ideal for targeted localized repair and post-weld seam protection.
What wire diameters can be used with your zinc spray guns?
Our equipment models support wire diameters ranging from 1.6 mm to 2.0 mm, making them versatile for various industrial coating processes.
Do you offer customization and OEM services?
Yes, we provide OEM services and have a professional R&D team dedicated to customizing equipment according to your specific production demands and line integration requirements.
What is your warranty policy and minimum order quantity (MOQ)?
Our minimum order quantity is 1 set, and we provide a 12-month warranty along with comprehensive after-sales support including installation guidance.
Inquire Now!
For inquiries about our products or pricelist, please leave your email to us and we will be in touch within 24 hours.