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You are here: Home » Products » Wire Rope & Accessories » Wire Rope Slings » WS71-E-E,T,TH,S&K Flemish Eye Splice Wire Rope Slings
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WS71-E-E,T,TH,S&K Flemish Eye Splice Wire Rope Slings

  • DAWSON/OEM
  • WS71
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WS71-E-E,T,TH,S&K Flemish Eye Splice Wire Rope Slings
- Dawson China

Single Part Body, Mechanical Splice
The eye or loop end preparation is formed using the Flemish Eye Splice. This splice is then secured by swaging a metal sleeve over the strang ends, at the junction of the splice. There are no exposed wires and serving is not required.
The swage metal sleeve flows around the wires and prevents the strands from unlaying. Depending on the application, the sleeve can be steel, aluminum, or stainless steel.
A single part, mechanical splice sling is economical, offers the highest rated capacity of any spliced sling, and loads ate applied along the center line of the sling.
 
Flemish Eye Splice - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter      Flemish Eye Splice - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter
Flemish Eye Splice:
The Flemish Eye is spliced by unlaying one half of the strands from the other half at the core. The two halves are joined at the bearing point of the eye and laid back in the opposite direction. The final step is to secure the strands with a metal sleeve.

WS71-E-E,T,TH,S&K 
Rated Capacity  Tons(2000lbs.)EIP-IWRC
Rope Diameter inch Vertical Choker* Basket Hitches Eye Dimensions inch
 vertical  Choker  Basket Hitches  Basket Hitches 60°  Basket Hitches 45° Basket Hitches 30°  A B
1/4 0.65 0.48 1.3 1.10 0.91 0.65 2.0 4
5/16 1.00 0.74 2.0 1.70 1.40 1.00 2.5 5
3/8 1.40 1.10 2.9 2.50 2.00 1.40 3.0 6
7/16 1.90 1.40 3.9 3.40 2.70 1.90 3.5 7
1/2 2.50 1.90 5.1 4.40 3.60 2.50 4.0 8
9/16 3.20 2.40 6.4 5.50 4.50 3.20 4.5 9
5/8 3.90 2.90 7.8 6.80 5.50 3.90 5.0 10
3/4 5.60 4.10 11.0 9.70 7.90 5.60 6.0 12
7/8 7.60 5.60 15.0 13.00 11.00 7.60 7.0 14
1 9.80 7.20 20.0 17.00 14.00 9.80 8.0 16
1 1/8 12.00 9.10 24.0 21.00 17.00 12.00 9.0 18
1 1/4 15.00 11.00 30.0 26.00 21.00 15.00 10.0 20
1 3/8 18.00 13.00 36.0 31.00 25.00 18.00 11.0 22
1 1/2 21.00 16.00 42.0 37.00 30.00 21.00 12.0 24
1 5/8 24.00 18.00 49.0 42.00 35.00 24.00 13.0 26
1 3/4 28.00 21.00 57.0 49.00 40.00 28.00 14.0 28
2 37.00 28.00 73.0 63.00 52.00 37.00 16.0 32
2 1/4 44.00 35.00 89.0 77.00 63.00 44.00 18.0 36
2 1/2 54.00 42.00 109.0 94.00 77.00 54.00 20.0 40
2 3/4 65.00 51.00 130.0 113.00 92.00 65.00 22.0 44
3 77.00 60.00 153.0 133.00 108.00 77.00 24.0 48
3 1/2 102.00 79.00 203.0 176.00 144.00 102.00 28.0 56

Rated capacities basket hitch based on D/d Ratio of 25.
Rated capacities based on pin diameter no larger than natural eye width or less than the nominal sling diameter.
Rated capacities based on design factor of 5. Horizontal sling angles less than 30° shall not be used. All capacities are based on new and unused slings.
* See Choker Hitch Rated Capacity Adjustment.
 
WARNING: Do not use, or allow the use of the products in this catalogue, unless the user has read and understands the applicable instructions and product warnings. Information available upon request.
 


 
Wire Rope Sling Application
Hitches
1.Vertical- The Vertical, or straight, attachment is simply using a sling to connect a lifting hook or other device to a load. Full rated load of the sling may be used, but never exceeded. A tagline should be used on such a lift to prevent rotation, which can damage the sling. A wire rope sling with a hand-tucked splice can unlay and fail if the sling is allowed to rotate.
2.Choker- Choker Hitch configurations reduce the rated capacity of a sling by 20 to 25 percent. If a load is hanging free, the normal choke angle is approximately 135°. When the choke angle is less than 120°, an adjustment in the choker rated capacity must be made(see illustration below). Extreme care should be taken to determine the choke angel as accurately as possible. As indicated in the table below, the decrease in rated capacity is dramatic.
   
Hitches - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter
 
   Choker Hitch
RATED CAPACITY ADJUSTIMENT
Choke  IWRC and Fiber Core Rope
Angle       Percent of
(Degrees)    Choker Rated Capacity
Over 120        100
  90-120          87
  60-89            74
  30-59            62
Up to 29         49
 
Hitches - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter
Angle Adjustment
Rated capacity adjustment for slings in choker hitch when angle is less than 120°. Choke angles greater than 135°are unstable and should not be used.
 
3.Basket- Basket hitched distribute a load equally between the two legs of a sling, within limitations imposed by the angles at which legs are rigged to the load(see discussion of sling angles).
Basket Hitch
CAPACITY ADJUSTMENT
    Angle                      Percent of Single Leg
(Degrees)                          Capacity
       90                                     200
       60                                     170
       45                                     140
       30                                     100
 
Basket Hitch - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter
Angle
A basket hitch has twice the capacity of a sling leg only if legs of sling are vertical, and only if D/d ratio is 25:1 and it is vertical. D/d>25:1 per ANSI B30.9.
 
WARNING: Do not use, or allow the use of the products in this catalogue, unless the user has read and understands the applicable instructions and product warnings. Information available upon request.
 
Reeving
Revving through connections to load increases load on connections fitting by as much as twice.
Do not reeve.
 
Reeving - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter
Triple and Quad Leg Slings
Triple leg slings have 50% more capacity than double leg only if the center of gravity is in center of connection points and the legs are adjusted properly(equal share of the load)
Quad leg slings offer improved stability but do not provide increased lifting capacity.
 
Triple and Quad Leg Slings - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter
 
Center of Gravity(COG)
The location of the center of gravity to the pick points is an important consideration.
 
Center of Gravity(COG) - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter
COG and Sling Loading
When lifting vertically, the load will be shared equally if the center of gravity is spaced equally between the pick points, as in the first illustration at right. If the weight of the load is 10,000 lbs., then each sling will have a load of 5,000 lbs. and each shackle and eyebolt will also have a load of 5,000 lbs.
When the center of gravity is not equally spaced between the pick points, as in the second illustration, the slings and fittings will not carry an equal share of the load. The sling connected to the pick point closest to the center of gravity will carry the greatest share of the load. Sling 2 is closest to COG. It will have the greatest share of load.
Sling 2 = 10,000 × 8 /(8+2)= 8,000
Sling 1 = 10,000 × 2 /(8+2)= 2,000
 
COG and Sling Loading - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter
 
WARNING: Do not use, or allow the use of the products in the catalogue, unless the user has read and understands the applicable instructions and product warnings. Information available upon request.
 
 
Sling Angle
Sling angle (also called angle of loading) is the angle measured between a horizontal plane and the sling leg or body. This angle is very important and can have a dramatic effect on the rated capacity of the sling (see illustration below) . As illustrated at right, when this angle decreases, the load on each leg increases. This principle applies whether one sling is used to pull at an angle, in a basket hitch, or for multilegged bridge slings. Sling angles of less than 30° shall not be used.

Angles and Load
Angles and Load - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter
 
Sling Angle - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter
Angles and Stress
How do you carry two buckets of water? These illustrations typify the stresses imposed on slings when the legs are attached to the load at various angles.
 
Sling Angles - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter
 
             Load Angle Factor
Sling Angle                   Load Angle
Degrees(A°)                 Factor =L/H
   90                              1.00
   60                             1.155
   50                             1.305
   45                             1.414
   30                             2.00
 LOAD ON EACH LEG OF SLING=
(Load÷2)×LOAD ANGLE FACTOR
ANSI B30.9 recommends against the use of a horizontal sling angle smaller than 30°.
Sling Angles 1 - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter      Sling Angles 2 - Dawson Group Ltd. - China Manufacturer, Supplier, Factory, Exporter
WARNING: Do not use, or allow the use of the products in the catalogue, unless the user has read and understands the applicable instructions and product warnings. Information available upon request.
Factory & Package Show:
Package of WS71-E-E,T,TH,S&K Flemish Eye Splice Wire Rope SlingsPackage of WS71-E-E,T,TH,S&K Flemish Eye Splice Wire Rope Slings

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