Vertical Electrogas Welding Machine

Core performance advantage

The EGW electroslag gas shielded welding system has the following prominent features:

• By adopting the innovative arc-slag composite heat source technology, the welding efficiency has been increased by up to 40%
• Compatible with various specifications of welding wires ranging from ø1.6 to 2.4mm, it can meet the requirements of different materials
• Supports various bevel forms such as single V bevel and double V bevel
• Equipped with a high-strength aluminum alloy track system, the maximum applicable plate height is 3000mm
• The system design breaks through the diameter limit and can weld storage tanks of any size larger than ø6000mm
• The unique ±25mm amplitude swing welding function ensures the welding quality of thick plates
• Excellent weld formation can be achieved within the plate thickness range of 8 to 45mm
• It offers two welding direction options: top-down and bottom-up

Explanation of technical principles

The EGW Electro Gas Welder system is an innovative technology developed on the basis of traditional electroslag welding. This system melts the welding wire through an electric arc in a shielding gas environment, combining the arc stability of MAG welding and the deep penetration characteristics of electroslag welding. The use of shielding gas effectively improves the mechanical properties of weld metal, making it particularly suitable for the welding of special materials such as low-temperature steel and high-strength steel.

Detailed Explanation of Two Welding Modes

1. Bottom to Top mode

The EGW Electro Gas Welder straddles the cylinder plate through adjustable flange wheels and moves upward along with the welding process. This mode is applicable to the conventional storage tank structure where the tank bottom is assembled first. During the welding process, the molten pool is always within the effective coverage range of the protective gas.

2. Top to Bottom mode

The EGW system operates along dedicated tracks pre-installed on both the inner and outer sides of the tank foundation. This mode is particularly suitable for special structures such as floating roof tanks that require the installation of the top first, ensuring a stable and reliable welding process.

Typical application fields

WUXI ABK EGW Electro Gas Welder has been successfully applied to:

• Welding of vertical seams of large storage tanks in strategic petroleum reserve depots
• Welding of 9% nickel steel material for LNG cryogenic storage tanks
• On-site assembly and welding of chemical raw material storage tanks
• Manufacturing of large-scale equipment such as desulfurization towers for the power industry

Quality assurance and service support

Each EGW electroslag gas shielded welding system undergoes strict testing before leaving the factory to ensure reliable performance. We offer:

• Professional technical solution design
• On-site installation and commissioning services
• Operator training
• 24-hour technical support
• The key components are suppliedquickly

Wuxi ABK Machinery Co.Ltd is a professional manufacturer of adjustable welding rotator in China. And we can also provide our clients around the world with many other products including special welding rotator, wind tower production line, H beam welding line, pipe welding equipment, CNC cutting machine, grinding machine, roll forming machine, plate bending machine, etc. We have obtained ISO and CE certification, and we also offer OEM service. Our products have been well received by customers from many countries, such as Spain, India, Germany, South Africa, Brazil, Chile, Argentina, Russia, Italy, France, Vietnam, and more. If you’re interested in our adjustable welding rotator, please don’t hesitate to contact us whenever you want.