Stack Tower Column Inspection

To date, SIGMA NDT has conducted numerous inspections of Stacks, Columns, and Towers in various types of process facilities. These are primarily conducted on Carbon Steel structures because they are magnetic. SIGMA NDT uses it’s SIGMA NDT Viper Magnetic Crawler for such applications especially when one cannot gain accessibility via scaffolding or lifts. Data can be collect using either LFET or Ultrasonics.