Features:
1. Suitable for max. shell plate width:4.8m
2. Minimum gap between double shells: 800mm
3. Adopting square-wave AC welding power source
4. AGW-I/ AGW-II are optional
NAEC grasped the rapid development trend of Chinese and world natural gas application, also combined with many years' successful technology and experience engaged in the research & development, manufacturing and services of various kinds of automatic welding and cutting equipment and production lines, AUTO takes a lead in the research and development of LNG tank construction equipments, automatic cutting and welding equipments for transportation pipeline, welding material and welding technology in China in the year of 2002.
NAEC cooperated with many EPC companies and research institutes for the development of 9Ni and other LNG tank welding technology. Currently, AUTO Automatic Girth Welding Machine for LNG Tank can be found in various LNG tank projects both in domestic and world LNG tank project sites.
LNG tank plate prefabrication and tank body welding solution
| Project | Machining/welding Process | |
| Steel plate beveling fabrication | Double-sided milling | AUTO double-head double-sided plate edge milling machine |
| Steel plate girth seam welding machine | One side welding both sides formation or double sided welding | AUTO Automatic Girth Welding Machine with No-gauging System for LNG tank AUTO Double Sided Automatic Sub-Arc Girth Welding Machine for LNG tank |
| Steel plate vertical seam welding machine | Pulse melting pole automatic vertical welding or manual welding | AUTO Automatic Pulse-MIG Vertical Welding Machine for LNG tank Miller DYNASTY 399 manual /TIG Welding machine |
| Bottom plate butt/corner seam welding | Automatic sub-arc welding or manual welding | AUTO Automatic Butt/Corner Seam Welding Machine AC/DC manual/TIG welding machine |
| Welding seam grinding | Disk type abrasive belt | AUTO Girth Seam Grinding Machine |
It is widely used in the industry of oil & gas, petroleum, petrochemical, refinery, pressure vessel fabrication, shipbuilding, nuclear, etc.
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 |
For more information, please contact us, thank you!
