Welcome to Nanjing Dahua Special Belt Knit Co., Ltd

How slings are rigged
Vertical
Single leg to load in straight lift. The full rated lifting capacity
can be used, but not exceeded.Load should not be allowed to
rotate since this can damage the sling.	Vertical
Choke Angel of Choke   Rated Capacity Factor 120-180 = 100% 90-119 = 86% 60-89 = 74% 30-59 = 62% 0-29 = 49% Using the sling as a choker reduces its rated capacity. Rating in the following sling charts have lower capacity for choker hitches than vertical loadings to reflect this.When using a choker sling at an angle of less than 120 degrees(seedrawing) the choker rated capacity must be reduced.
Basket
A basket hitch equally distributes the load between the two legs of a sling. Consideration must be given
to the angles created in basket hitches since they reduce the rated capacity.
(See “How Angles Effect Sling Stress” below)
As the angle between the legs of the sling increase, the load each leg has to lift increases. This applies
to a single sling used in a basket hitch as well as a multi-leg sling or bridle. See illustration below.
1.First, divide the total load to be lifted by the number of legs to be used. This provides the
load per leg if the lift were being made with all the legs lifting vertically.	LEG ANGEL (Degrees) LOAD FACTOR 0 1.000 5 1.003 10 1.015 15 1.035 20 1.064 25 1.103 30 1.154 35 1.220 40 1.305 45 1.414 50 1.555 55 1.743 60 2.000
2.Determine the angle between the legs of the sling and the vertical.
3.Then MULTIPLY the load per leg by the Load Factor for the leg angle
being used (from the table at right) to compute the ACTUAL LOAD
on each leg for this lift and angle.
NOTE: THE ACTUAL LOAD MUST NOT EXCEED THE RATED
SLING CAPACITY.
4.Example: In drawing three (sling angle of 45 degrees):
1000 ÷ 2 = 500kg ( Per Leg if a vertical lift)
500 x 1.414 = 707kg = ACTUAL LOAD on each leg at the 45 degree
horizontal angle being used.

Email: dahua@dahua-sling.com

Phone: 0086 25 57053551

Fax: 0086 25 57796384