Synthetic Bridle Roundsling ASME B30.9

Item No.: 3100
Synthetic bridle sling is lightweight, strong and easy to handle, making it a good choice for more fragile or polished equipment that needs to be handled carefully.

H-Lift Synthetic Bridle Roundsling features:


  • Lightweight and easy to handle when compared to wire and chain bridles.
  • Better load control and balance by using fixed connecting points and multiple legs
  • Use of master links and hooks prevents cutting and abrasion of sling at bearing points.
  • Pliable for easy storage.
  • Standard: ASME/ANSI B30.9
  • Safety factor 5:1



Item No. 1-leg synthetic bridle sling from H-Lift China Color Rated Capacity Minimum Leg Length (ft) Product Code
Vertical (lbs)
RSBS-1-1 Purple 2600 4 3100102600
RSBS-1-2 Green 5300 4 3100105300
RSBS-1-3 Yellow 8400 4 3100108400
RSBS-1-4 Tan 10600 4 3100110600
RSBS-1-5 Red 13200 4 3100113200
RSBS-1-6 Wite 16800 8 3100116800
RSBS-1-7 Blue 21200 8 3100121200



Item No. 2 leg synthetic bridle sling Color Capacity at Horizontal Angle (lbs) Product Code
60o 45o 30o
RSBS-2-1 Purple 4500 3700 2600 3100204500
RSBS-2-2 Green 9200 7500 5300 3100209200
RSBS-2-3 Yellow 14500 11800 8400 3100214500
RSBS-2-4 Tan 18300 14900 10600 3100218300
RSBS-2-5 Red 22800 18600 13200 3100222800
RSBS-2-6 Wite 29000 23700 16800 3100229000
RSBS-2-7 Blue 36700 29900 21200 3100236700



Item No. 3 leg synthetic bridle sling from H-Lift China Color Capacity at Horizontal Angle (lbs) Product Code
60o 45o 30o
RSBS-3-1 Purple 6750 5520 3900 3100306750
RSBS-3-2 Green 13800 11250 7950 3100313800
RSBS-3-3 Yellow 21750 17700 12600 3100321750
RSBS-3-4 Tan 27450 22350 15900 3100327450
RSBS-3-5 Red 34200 27900 19800 3100334200



Item No. 4 leg synthetic bridle sling Color Capacity at Horizontal Angle (lbs) Product Code
60o 45o 30o
RSBS-4-1 Purple 9000 7360 5200 3100409000
RSBS-4-2 Green 18400 15000 10600 3100418400
RSBS-4-3 Yellow 29000 23600 16800 3100429000
RSBS-4-4 Tan 36600 29800 21200 3100436600
Horizontal angle or the sling angle is the angle where the sling meets the load. In the lifting and rigging industry, you want to make sure the angle is at least 30° or more.

Lifting and rigging specialists tend to prefer 60° angles. When a multi-leg sling is tagged, it is tagged for 60°. Slings also can be used at 45° or 30°, but for most of the lifts, 60° is the baseline sling angle that riggers want to use.


Sling Angle is the angle measured between the horizontal plane and the sling leg or body. When selecting a sling to carry a given load, it is important to consider the angle at which it is going to be used. The angle is very important and can have a dramatic effect on the rated capacity, due to the increase of tension caused by the angle.

As an example, one sling in a basket hitch or two slings attached to one crane hook are different applications involving different sling angles. The degree of the angle will determine how much the capacity will be reduced. To determine if a particular sling will have the capacity required, take the angle between the sling leg and the horizontal, then multiply the sling’s rating by the factor provided in the accompanying table. 

In the example below, you will see how the 1,000lb capacity of a sling used in a vertical basket hitch is reduced taking these factors into consideration.

3 Basic Hitches

Effects of Sling Angles

Sling Capacity Changes as Angle Changes

Sling Capacity and Choker Hitch Angles

Web Slings & Roundslings – WSTDA

Angle of Choke (Degrees)
Equal to or greater than
Angle of Choke (Degrees)
Less than
Reduction Factor
120 180 1
105 120 .82
90 105 .71
60 90 .58
0 60 .50
Choker Hitch Capacity x Reduction Factor = Reduced Choker Hitch Capacity
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