For Endless, Two Legs, Three & Four Legs Chain Slings
Nominal Size dn Working Load (SWL) for Endless Chain Slings
L M S T
6 0.75 0.90 1.50 1.87
7.1 0.94 1.20 1.87 2.40
8.0 1.20 1.50 2.40 3.0
9.0 1.50 1.87 3.0 3,75
10.0 1.87 2.40 3.75 4.80
11 2.4 3.0 4.8 6.0
12 3.0 3.75 6.0 7.5
14 3.75 4.8 7.5 9.45
16 4.8 6.0 9.45 12.0
18 6.0 7.50 12.0 15.0
20 7.5 9.45 15.0 18.75
22 9.45 12.0 18.75 24.0
25 12.0 15.0 24.0 30.0
28 15.0 18.75 30.0 37.50
32 18.75 24.0 37.50 48.0
36 24.0 30.0 48.0 60.0
40 30.0 37.50 60.0 75.0
45 37.50 48.0 75.0 94.50
L=Grade-30, M=Grade-40, S=Grade-63, T=Grade-80

Follow the following instructions while selecting Chain Slings.

1) Double branch slings:
For all angles between branches from 0-900 (0-450 to the vertical)

WLL = 1.4 x WLL of a single branch made from similar chain.
When additional marked for angles between branches of 90-1200 (45-600 to the vertical) WLL= 1 x WLL of a single branch made from similar chain.

2) Three and Four branch slings:
For all angles between branches from 0-900 (0-450 to the vertical)

Four Branch
WLL = 2.1 x WLL of a single branch made from similar chain.
When additional marked for angles between branches of 90-1200 (45-600 to the vertical)

Three Branch
WLL = 1.5 x WLL of a single branch made from similar chain.

Note: In the case of a three branch sling the angle between branches shall be taken as twice to angle to the vertical, that is 2x single leg capacity.
The listed working loads should be reduced by at least 20% when the sling is being used in a choker hitch configuration.

Chocker Slings Type LTC-23 		ALTERNATIVELY CONSIDER THE FOLLOWING METHOD:

A) For two leg (branch) slings multiply the capacity of single leg sling by 1.4 to obtain SWL of two legs at a included angle 900.
Table determining the SWL of 2 legs of given chain dia.
Single Leg chain say Multiply by SWL of 2 Legs
12mm grade T. (80) x is 7 tons
SWL 5 Tons 1.4 at 900 angle

B) For 4 leg (branch) slings multiply the capacity of single leg sling by 2.1 to obtain SWL of .. two legs at a included angle 900.
Single Leg chain say Multiply by SWL 3 or 4 Legs
16mm grade 1(80) x is 16.8 tons
SWL 5 Tons 2.1 at 900 angle
Important Notes:
Working Load Limits of Chain & Chain Slings have been calculated on the basis of minimum breaking load /Working load relationship of 4:1. Certain users prefer a higher factor for safety which can be considered.

All reference to angles between legs assume that the legs are symmetrically disposed e.g. in the case of sling rated at angles of 0 to 900. no leg is disposed at more than 450 from vertical