Working Load Limits of
Chain Slings

 

Single Chain Slings
Type S & C		 Double Chain Slings - Type D
Working load Limit in pounds when used with branches
at angle of inclination to horizontal load as shown below.

Chain Size
in Inches

Size On Straight Lift 60 Degrees 45 Degrees 30 Degrees
7/32 2,100 lbs. 3,500 lbs. 3,000 lbs. 2,100 lbs.
9/32 3,500 lbs. 6,100 lbs. 4,900 lbs. 3,500 lbs.
3/8 7,100 lbs. 12,300 lbs. 10,000 lbs. 7,100 lbs.
1/2 12,000 lbs. 20,800 lbs. 17,000 lbs. 12,000 lbs.
5/8 18,100 lbs. 31,300 lbs. 25,600 lbs. 18,100 lbs.
3/4 28,300 lbs. 49,000 lbs. 40,000 lbs. 28,300 lbs.
7/8 34,200 lbs. 59,200 lbs. 48,400 lbs. 34,200 lbs.
1 47,700 lbs. 82,600 lbs. 67,400 lbs. 47,700 lbs.
1-1/4 72,300 lbs. 125,200 lbs. 102,200 lbs. 72,300 lbs.
Above data complies with all existing federal regulations.
Caution: Serious damage to a chain may occur when a force exceeding the working load limit is applied to a chain or chain assembly. These working load limits should not be exceeded.


Use of chain under heat conditions
When the chain itself is heated to temperatures shown below, the working load limits should be reduced as indicated.
Temperature of Chain Reduction in
Working Load
Limit**
While Heated		 Permanent Reduction in
Working Load
Limit***
500 Degrees F none none
600 Degrees F 10% none
700 Degrees F 20% none
800 Degrees F 30% none
900 Degrees F 40% 10%
1000 Degrees F 50% 15%
** While chain is at room temperature shown in first column.
*** When chain is used at room temperature after having been heated to temperature shown in first column.
 

 

Triple chain slings -- type T
Quad chain slings -- type Q

Working load limit in pounds when used with branches at angle of inclination to horizontal load as shown.
Chain Size
in Inches
Size 60 Degrees 45 Degrees 30 Degrees
7/32 5,450 lbs. 4,450 lbs. 3,150 lbs.
9/32 9,100 lbs. 7,400 lbs. 5,200 lbs.
3/8 18,400 lbs. 15,100 lbs. 10,600 lbs.
1/2 31,200 lbs. 25,500 lbs. 18,000 lbs.
5/8 47,000 lbs. 38,400 lbs. 27,100 lbs.
3/4 73,500 lbs. 60,000 lbs. 42,400 lbs.
7/8 88,900 lbs. 72,500 lbs. 51,300 lbs.
1 123,900 lbs. 101,200 lbs. 71,500 lbs.
1-1/4 187,800 lbs. 153,400 lbs. 108,400 lbs.

Above data complies with all existing federal regulations
* SAFETY NOTE: A 4-leg chain sling, when used on a load of rigid structure, is usually not sustaining the load evenly on each of its four legs. The maximum working load limits are therefore set at the same values as for 3-leg chain slings of equal quality and size and used with legs at same angle of inclination.