Automatic Tank Thread Nozzle Welding Machine
The HAOYU Tank Thread Nozzle Welding Machine is automatic welding equipment designed to weld threaded nozzles, couplings and fittings onto tank shells. It uses the gas shielded welding process (MAG) and a fixture-and-rotation system to keep the torch position and welding parameters consistent.
Description
Tank Thread Nozzle Welding Machine Overview
The HAOYU Tank Thread Nozzle Welding Machine is automatic welding equipment designed to weld threaded nozzles, couplings and fittings onto tank shells. It uses the gas shielded welding process (MAG) and a fixture-and-rotation system to keep the torch position and welding parameters consistent. This gives you uniform weld seams, less spatter and stable output, whether you make water tanks, air tanks, LPG tanks, pressure vessels or other fabricated tanks.
Automatic welding machine for nozzle on shell
Nozzle welding machine for water heater tank
Technical Specifications
| Item | Specification |
|---|---|
| Product Name | Tank Thread Nozzle Welding Machine |
| Welding Process | Gas shielded welding (MAG) |
| Applicable Workpiece | Threaded nozzles, couplings, fittings on tanks / pressure vessels |
| Applicable Materials | Carbon steel |
| Nozzle Size Range | 25mm-50mm |
| Tank Diameter Range | Φ300 –750 mm |
| Tank Length Range | MAX1500MM |
| Tank Thickness | 3-10mm |
| Welding Power Source | AOTAI NBC400P PLUS |
| Welding Wire Diameter | 1.0– 1.2 mm |
| Shielding Gas | Ar + CO₂ mixture |
| Control System | PLC + touch screen |
| Machine working voltage | 220V Single-phase(customizable) |
| Customization | Fixtures, stroke and voltage can be customized |
Problems that gas nozzle welding equipment can solve
Every feature of the HAOYU Tank Thread Nozzle Welding Machine is built to solve a specific problem in tank nozzle production.
| Design Feature | Problem It Solves |
|---|---|
| MAG gas shielded welding (Ar + CO₂ mixed gas) | Porosity and weak joints. The gas shield keeps the molten pool clean, giving dense, strong welds on carbon steel and stainless steel tanks. |
| Dedicated nozzle clamping fixture | Nozzle offset and tilt. The nozzle stays concentric with the tank opening, so every part is welded in the same position. |
| Rotary welding with controlled speed | Uneven seams and gaps at the arc closure. The circumferential weld is uniform from start to finish. |
| Thread-protection setup (torch position and parameters optimized) | Spatter and heat damage on the thread. The thread stays clean and usable, which reduces rework. |
| Saveable welding parameters (current, voltage, speed, wire feed, gas flow) | Quality changes between operators and batches. Select the saved program for each nozzle size and wall thickness, and results stay the same. |
| Adjustable / replaceable fixtures | Long changeover time on mixed-batch orders. Switch nozzle diameters quickly without rebuilding the setup. |
| PLC + touch screen control | Dependence on skilled welders. Operators load, clamp and start, with little training needed. |
Applications
This machine is used by tank and pressure vessel manufacturers for welding nozzles to:
- Water storage tanks and expansion tanks
- Air receiver tanks and compressed air tanks
- LPG / gas cylinders and storage tanks
- Hydraulic and fuel tanks
- Boiler tanks and heat exchanger shells
- Stainless steel food and chemical tanks
Other products for your reference:
Gas Tank Nut Circumferential Seam Welding Machine
CNC MAG Nozzle Seam Welding Euipment For Water Heater Tank
Why Choose Automatic Gas Shielded Welding for Tank Nozzles?
| Manual Welding | HAOYU Automatic Welding Machine | |
| Weld consistency | Depends on operator skill | Uniform and repeatable |
| Nozzle alignment | Easily offset | Fixed by fixture |
| Spatter / thread damage | Higher risk | Reduced |
| Efficiency | Slow, varies by worker | Faster, stable cycle time |
| Rework rate | Higher | Lower |
| Labor requirement | Skilled welder | Basic training |
Why Buy from HAOYU
why choose our products
1.Direct Manufacturer: We design and build welding and assembly equipment in-house and can adapt it to your tanks.
2.Customized solutions: Tell us your nozzle type, tank size and output target, and we will propose the matching configuration.
3.Tested before shipment: Every machine is run and accepted before it is packed and loaded.
4.Export experience: Our equipment is shipped overseas, with secure packing and documents handled by our team.
5.Support: We provide operation guidance, technical support and spare parts supply.
Frequently Asked Questions
1. What is a tank thread nozzle welding machine used for?
It welds threaded nozzles, couplings and fittings onto tank shells or heads automatically, so the connection is strong, sealed and consistent.
2. Which welding process does this machine use?
It uses gas shielded welding (MAG), where wire is fed continuously and shielding gas protects the weld pool.
3. Can it weld carbon steel tanks ?
Yes. With the right wire and shielding gas, it can weld both carbon steel,and other materials such as stainless steel or aluminum are also acceptable.
4. Can the machine handle different nozzle sizes?
Yes. Adjustable or interchangeable fixtures cover a range of nozzle diameters, and we can customize the range to your products.
5. Will welding damage the nozzle thread?
The positioning and parameter setup are designed to limit spatter and heat impact on the thread. For thread-critical parts, we recommend testing your sample first.
6. How can I get the right model and price?
Send us your nozzle size, tank diameter and wall thickness, material, and daily output. Our engineers will recommend a solution and quote.
7. Do you offer customization and sample welding tests?
Yes. Send us your drawings or samples, and we can discuss a tailored solution.
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