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      $39

      Four point (single hook) lift design (as per DNV)

      Four point lifts appear simple, but a slight dig reveals multiple constraints which they may throw up - load amplification factors, COG shifts, tilts in the cargo and type of sling.

      This app puts all concerns to rest, with a comprehensive calculator for four sling lifts. It can be used to design a new lift configuration using four slings and single crane, or it can be used to verify an existing one. It follows the latest DNV-ST-N-001 guidelines.

      •It calculates the design load, the Dynamic Amplification Factor (DAF), and point loads

      •It checks the crane lifting capacity, tilt angle, and calculates the lift point load

      •The resulting forces and angles can be used to design/check the pad-eye for lifting

      •It also provides an elaborate sling design sheet based on DNV-ST-N-001

      •Sling Design can be done for Vertical Hitch, Choker Hitch or Basket Hitch


      https://youtu.be/wcHwhZhSL80

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      Purchasing Four point (single hook) lift design (as per DNV)...

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