Automatic Girth Seam Welding Machine

• Customization: Available
• Production Scope: Product Line
• Automation: Automatic, Automation
• Model NO.: NAEC
• After-sales Service: 1 Year
• Transmission Type: Flexible
• Automatic Production Line: Comprehensive
• Certification: ISO
• Flexible Production: Lean Production
• Warranty: 1 Year
• Transport Package: Container
• Trademark: NAEC
• Origin: China

Product Description

Automatic Girth Seam Welding Machine

 

NAEC Automatic Girth Seam Welding Machine is a new generation of high efficient sub-arc welding machine for storage tank construction, which is independently designed by NAEC with the latest welding technology and technique.


NAEC Automatic Girth Seam Welding Machine has several types, such as single sided welding machine, double sided welding machine which can be applied in both inside and outside girth seam welding, and single welding double side shaping machine(with no-gouging system).

NAEC Automatic Girth Seam Welding Machine has advantages of high efficiency and high reliability. And it is widely used in the industry of oil & gas, petroleum, petrochemical, refinery, shipbuilding, nuclear, etc

Features:
1. Suitable for both bottom-to-top and top-to-bottom construction methods.
2. Adopt SAW (Submerged Arc Welding) technology.
3. Single and Double sided operation.
4. Support customer to finish one tank body construction within one month by NAEC advanced solution.
5. Automatic welding efficiency is 15-40 times of manual.
6. Hydraulic jacking system is necessary for the top-to-bottom construction method.
7. First X-ray qualification rate: ≥99.5%.
8. Mechanical performance meets low-temperature impact test requirements.
9. Project implementation follows API650, ASME, AWS and other international standards.


Automatic Girth Seam Welding Machine 

Welding Power       Specification		MIA	MILLER SUBARC DC 800
Welding system		MIA power source High speed wire feeder High quality digital control system	Miller SUARC DC800 power source RAD400 wire feeder HDC1500 control system
Model	Bottom to top	SAHW-I(single side type) SAHW-II(double side type) SAHW-I/II(single side welding, double side shaping, with no-gouging system)
	Top to bottom	SAHW-I R (single side type, can match with hydraulic jacking system) SAHW-I P/R(single side type, can be used for top to bottom or bottom to top construction method)
Suitable construction mode		bottom-to-top or/and top-to-bottom
Welding process		SAW
Traveling mode		Manual traveling and automatic traveling are optional
Traveling direction		It can travel in both positive and negative directions
Suitable diameter		Storage tank with diameter no less than 9m
Suitable material		Carbon steel, alloy steel, high-strength steel, stainless steel
Suitable thickness		bottom-to-top	8-50mm
		top-to-bottom	6-50mm
Bevel types		V  type bevel and K type bevel
Suitable position		Girth seam/ horizontal seam
Suitable shell plate width		1.5~3.0m
Suitable welding wire		Φ2.0mm, Φ2.4mm, Φ3.2mm
Frame traveling speed		0~2200mm/min stepless adjustment
Adjustment range of torch up/down and back/forth		±50mm
Adjustment range of torch angle		±15°

 

Tank Construction Machines
 

1		Girth Seam Welding Machine >Applicable to both bottom-to-top and top-to-bottom tank erection >Adopting Sub Arc Welding technology >Standard machine suitable for shell plate width: 1.3M-2.8M >Max. Efficiency of AGW could be 30 times as manual welding
2		Vertical Seam Welding Machine >Suitable for tank plate wall thickness is from 10mm to 50mm >Motor frequency inverter drive system >Weatherproof control box with digital display for welding speed >Travel speed: 0~2200mm/min >Beveled gear drive reducer, good locking ability in both directions
3		Butt/Corner Seam Welding Machine >Applicable to butt seam welding of bottom plates >With magnetic idler system >More than 99% Qualified first X-ray test. >Suitable for both Top-to-Bottom and Bottom-to-Top Tank Construction Method