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The rail for the Submerged Arc Automatic Girth Welding machine is fixed to the tank shell using permanent magnets which can be switched on and off. Each magnet can withstand a sliding force of 500 kgf. The weight of the girth welding machine is 260 kg. Bygging Infrastructure manufactures, sells and rents hydraulic jacks and automatic girth welding machines used in the construction of storage tanks. Bygging Infrastructure has devised mechanisms that eliminate temporary welding to the tank shell when using tank lifting jacks and automatic girth welding machines. For more information visit our website: www.jackingsyst... or contact us via email: info@bygging.com or Whatsapp: +91 9821112606.