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How to Order Vernon Slings

Does the sling you are ordering have a rated capacity large enough for the job? 

The sling angle formed by a leg and the horizontal has a definite effect on the rated capacity of the sling. As the angle decreases from the vertical (straight pull), the amount of lifting capacity decreases. The tension in each leg increases without an increase in the load lifted.

For example:
Sling = 2 legged bridle
Load = 1000 lbs.
Angle (with vertical) = 45 degrees
Sling Angle Load Angle Factor
90 1.000
85 1.004
80 1.015
75 1.035
70 1.064
65 1.104
60 1.155
55 1.221
50 1.305
45 1.414
40 1.555
35 1.742
30 2.000
venon slings Each of the two legs would lift 500 pounds if vertical or straight pull were used. However, there is a 45 degree sling angle necessary. Therefore, the 500 pound load would be multiplied by the load angle factor given in the chart (1.414) giving a total of 707 lbs. (500 lbs. x 1.414 = 707 lbs.) tension in each leg. Each must have a rated capacity of handling 707 pounds.

Press-Grip Slings

  1. Specify by name: Press-Grip 6×19 or 6×37
  2. Specify by type: Type 1, Type 2, Etc.
  3. Specify the biameter of the rope
  4. Specify the length bearing to bearing
  5. If other than standard eye is desired, specify correct size
  6. List special fittings desired or eliminated

Example: Press-Grip, 6×19, Type 6, 7/8", 24′ bearing to bearing, without eye hooks, wire rope thimbles in all eyes.

Cable-Laid Slings

  1. Specify by name: Cable-Laid
  2. Specify by type: Type 1, Type 2, Etc.
  3. Specify the diameter of the rope
  4. Specify the length bearing to bearing
  5. Specify desired size eye if different from standard
  6. List special fittings to be added or eliminated

Example: Uni-Ply, Type 8, 1/2", 16′ bearing to bearing, eliminate eye hooks and use slip thru thimbles in all eyes.

Vernon will develop special slings for special requirements

Our personnel welcome the opportunity to work with your technical and safety personnel in developing special slings for special needs. We will be glad to survey your operations to help you determine which type of sling will provide you with the longest sling life expectancy for each application.

Hand-Spliced Slings

  1. Specify by name: Hand-Spliced 6×19 or 6×37
  2. Specify by type: Type 1, Type 2, Etc.
  3. Specify the diameter of the rope
  4. Specify length bearing to bearing
  5. If other than standard eye size required, specify correct size
  6. List special fittings desired

Example: Hand-Spliced 6×37, Type 1, 1-1/2", 30′ bearing to bearing

Grommet Slings

  1. Specify type: strand or cable
  2. Specify size
  3. Specify circumference
  4. Specify special fittings if desired.

Example: Rope Grommet, 1-1/2", 43′ circumference

Boom Pendants

  1. Specify name of pendant: zinc poured, epoxy-resin poured or swaged
  2. Specify type: rope 6×19 or 6×37, bridge strand
  3. Specify diameter of rope
  4. Specify length center to center (When ordering closed wire rope thimble, measure bale to bale)
  5. Specify fittings desired, if other than normal open and closed socket
  6. Specify tolerance and positioning

Example: Boom Pendant, 6×19, 1", 32′ center to center, open socket fittings at 90 degrees to each other.

 
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