First Sling

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How To Order
1






When ordering slings consider:
• Type of Hitch
• Capacity Tables
• Sling to Load Angles
2
 
1. Sling type and code number
2. Number of plies
3. Web class
4. Web width in inches
5. Sling material (nylon or polyester)
6. Sling length - pull to pull
Web sling codes available are:
TC - (triangle & choker end fittings)
TT - (triangle & triangle end fittings)
EE - (eye & eye - flat eyes) - Standard  (eye & eye - twisted eyes)
EN - (endless)
RE - (reversed eye)
SH - (stone handling)
WL - (wide lift)
WLA - (wide lift attached eye)
Number of Plies - This refers to the number of thicknesses of webbing in the body of the slings. Generally available in 1, 2, 3 and 4 plies.

Web width - Standard web widths range from 1" through 12". Standard sling widths up to 24".

Sling material - Unless specified, nylon webbing will be standard. Polyester webbing is also available.

Treatment for abrasion - Unless specifically requested, all nylon web slings will have an abrasion-resistant treatment applied. The standard for polyester web slings, however, is without treatment.

Eye Length Chart
Eye length of types 3 and 4 varies with sling width and number of webbing plies.

Sling Width
Plies of Webbing
1
2
3
4
1"
10"
12"
14"
14"
2"
10"
12"
14"
14"
3"
14"
14"
16"
16"
4"
14"
14"
16"
16"
5"
14"
14"
16"
16"
6"
16"
16"
18"
18"
8"
18"
18"
20"
20"
10"
24"
24"
26"
26"
12"
24"
24"
26"
26"

CAUTION DO NOT EXCEED RATED CAPACITIES

Sling Angle and Rated Capacity

When selecting a sling to carry a given load, it is important to consider the angle at which the sling is to be used. 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.

The capacity of a sling will be reduced as the angle from the horizontal is reduced. In the example below, you will see how the 1,000 pound capacity of a sling used in a vertical basket hitch is reduced:

3 Basic Hitches
10a
Sling Capacity Decreases as the Angle Increases
10b

Angles in
Degree
Factor
90 1.000
85 0.996
80 0.985
75 0.966
70 0.940
65 0.906
60 0.866
55 0.819
50 0.766
45 0.707
40 0.643
35 0.574
30 0.500
 

Chemical Environment Data
Acids
Alcohols
Alde-
hydes
Strong
Alkalis
Bleaching
Agents
Dry
Cleaning
Solvents
Ethers
Halo-
genated
Hydro-
Carbons
Hydro-
Carbons
Ketones
Oils
Crude
Oils
Lubri-
cating
Soap &
Deter-
gents
Water
& Sea-
water
Weak
Alka-
lis
nylon
NO
OK
OK
OK
NO
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
polyester
*
OK
NO
**
OK
OK
NO
OK
OK
OK
OK
OK
OK
OK
OK

* Disintergrated by concentrated sulfuric acid         ** Degraded by strong alkalis at elevated temperatures

CAUTION DO NOT EXCEED RATED CAPACITIES

Physical Factors Effecting Strength

 
TEMPERATURE
IMPROPER LOADING
CUTS, PUNCTURES,
ABRASIONS
Web Slings
Nylon & polyester are seriously degraded at temperatures above
200°F.
Shock loading, unbalanced
loading, over loading and
inadequate consideration for the effect of angle factors can adversely effect strength.
Any of these can seriously degrade sling strength. Red core yarns can aid in locating
damaged webbing.
Roundslings
Being polyester, is seriously degraded at temperatures above 200°F.
Shock loading, unbalanced loading, over loading and inadequate consideration for the effect of angle factors can adversely effect strength.
When the sleeve on a roundsling has been damaged so that the inner load bearing yarns can be exposed, the sling MUST be discarded.
Web Slings
FOREIGN MATTER
Material such as metal chips, weld splatter, heavy grit, etc. can damage a web sling both internally and externally
ULTRAVIOLETLIGHT
Nylon & polyester web slings are adversely affected by prolonged exposure to UV light, i.e. sunlight or arc welding.
Roundslings
Material such as metal chips, weld splatter, heavy grit, etc. can damage the Roundsling's cover.
Relatively uneffected by UC light

CAUTION
DO NOT EXCEED RATED CAPACITIES