Our slings are manufactured by Viking Rigging Solutions in Ontario using Canadian made materials

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Rigging

Selecting the right tools for the job is essential, no matter what the job is.

The below information is for guidance only.

All Rigging and Lifting is performed by trained personnel only.

All slings must be labelled with the below information (as per ASME B30.9-2018 Chapter 9-5 Synthetic Webbing Slings):

  • Manufacturer

  • Manufacturers Serial #

  • Rated load for at least one hitch type and the angle upon which it is based.

  • Type of synthetic web material

  • Number of legs, if more than one

Any slings with the below defects must be removed from service:​

  • Excessive abrasive wear.

  • Broke or worn stitching.

  • Holes, tears, cuts, snags.

  • Acid or caustic burns.

  • Melted, burned or weld spatter damage.

  • Knots in any part of the sling.

  • Crushed webbing or embedded particles.

  • Bleached sling colour / Discolouring.

labels

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ANGLES

Be sure that your lifting plan has accounted for the angles at which the rigging will be lifting the load.

Image Source: https://www.ccohs.ca/

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Calculate the Reduction Factor by dividing the Height (distance from Load to Hook) by the Length of the sling.

Height / Length = Reduction Factor

Rated capacity of Sling x Reduction Factor  = Lifting Capacity

Example:

86" Height / 120" Length = 0.71666 Reduction Factor

6000lbs Sling x 0.71666 Reduction Factor = 4299lbs Capacity

To determine the rigging required for a lift, you will need to calculate the Increased Tension. This is done by dividing the Length of the sling by the Height (distance from Load to Hook).

Length / Height = Increased Tension

Calculated load weight x Increased Tension = Required Capacity

Example:

120" Length / 86" Height = 1.395 Increased Tension

5000lbs Load x 1.395 Increased Tension = 6975lbs Sling Capacity