1. Determine the weight and center of gravity of the load. For special lifts consult
manufacturer for additional support and/or suggested products.
2. Check the sling tag to confirm that the sling is rated adequately for the load in the
manner or hitches that it will be used. Refer to load angle, choke angle and other relevant
charts.
USE
45
30
90
60
1,000 lbs
866 lbs
707 lbs
500 lbs
LOAD ANGLE CHART
Angle factor must be applied to calculate the
reduced sling
capacity
when lifting force is not at 90˚ to the plane of the load!
Multiply angle factor x sling’s vertical rated load to
calculate the reduced capacity at the angle.
CHOKE ANGLE EFFECT
ANGLES OF
CHOKE
SLING RATED LOAD
100%
87%
74%
62%
49%
Over 120
90 - 120
60 - 89
30 - 59
0 - 29
Angle
Factor
Angle
Factor
Angle
Factor
Angle
Factor
90˚
80˚
75˚
1.0000
0.9848
0.9659
70˚
65˚
60˚
55˚
50˚
45˚
40˚
35˚
30˚
0.9397
0.9063
0.8660
0.8192
0.7660
0.7071
0.6428
0.5736
0.5000
PERCENTAGE OF SLING RATED
CAPACITY IN A CHOKER HITCH
Use caution with lifts at angles less than 45˚ and do not make lifts with slings at less than 30˚. When
possible, use longer slings to minimize angular tension by increasing the angle. Severe angles can
greatly reduce sling strength.
90°
60°
45°
30°
3. Check chemical resistance. Twin-Path® slings are generally resistant to common chemicals.
Resistances in this chart are based on common concentrations at room temperature. Elevated
concentrations and temperatures may affect chemical resistance. Contact Slingmax for more
information when using in environments with elevated concentrations of chemicals and/or
temperatures.
Chemical
Resistance
Chemical
Resistance
Hydrocarbons
Excellent
Alkalis
Excellent
Hydraulic Fluid
Excellent
Chlorine bleach
Poor
Crude Oil
Excellent
Sodium Hydroxide
Fair
Gasoline
Excellent
High Concentra
�
on Sodium Hydroxide
Poor
Kerosene
Excellent
Diesel Fuel
Excellent
Other
Mineral Oil
Excellent
Salt Water
Excellent
Ammonia
Fair
Acids
Excellent
Sulfuric Acid
Excellent
Most Solvents
Excellent
High Concentra
�
on Sulfuric Acid
Fair
Ethanol
Excellent
Hydrochloric Acid
Excellent
Methanol
Excellent
Phosphoric Acid
Excellent
Toluene
Excellent
Boric Acid
Excellent
d-limonene
Poor
2
Some chemicals on this chart (including those rated as “Excellent”) can damage the sling
cover. Contact Slingmax® for more information.