TYPE
3 AND 4 EYE AND EYE SLINGS (Flat or Twisted)
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Type
3 (EE) - Flat Eye slings are very popular and
can be used in all three types of hitches. They are
easier to remove from beneath the load than sling
Types 1, 2 and 4. Unless Type 4 is requested,
Type 3 will be supplied as the standard EE sling. |
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Type
4 (EE) - Twisted Eye slings are similar to
Type 3 except the eyes are turned 90° to form a
better choker hitch. The eyes of a Type 4 nest better
on the crane hook. |
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Webmaster
1600 Nylon and Polyester* Slings The Industrial Standard Heavy
Duty Sling
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| This
grade of synthetic web sling is popular because most users consider
it's strength and service life a good buy. |
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| Webmaster
Features, Advantages and Benefits |
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| Promotes
Safety |
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Saves
Money |
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•
Red core yarn warning system aids in the inspection
process. |
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Yellow treatment for abrasion resistance and extended
sling life. |
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Tuff-Tag provides serial numbered identification for
traceability. |
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Tuff-Tag provides required OSHA information for
the life of the sling, not just the life of the
tag. |
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Proven sling web construction. |
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*
Note: Polyester web is identified by single blue
surface stripe. |
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For
more information on web slings
see below price table.
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WEB SELECTOR - QUICK COMPARISONS
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Approx.
Thickness |
Single Ply Rated
Capacity Per In.
of Width |
Available
Material |
Identify by: |
Choose from: |
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3/16" |
1600 Lbs. |
Polyester |
Blue center stripe |
Daily use under good
to moderate lifting
conditions. Polyester
stretches less for
better load control,
reduced abrasion.* |
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3/16" |
1600 Lbs. |
Nylon |
No center stripe |
Daily use under good
to moderate lifting
conditions. Nylon
stretches more to
help avoid shock
loading.* |
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HOW
TO ORDER
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1.
Pick a Sling Type (EE)
2. Flat eye or Twisted eye
3. Number of Plies (1, 2, 3 or 4 ply)
4. Web Class (8 = webmaster 1600) |
5.
Sling Width
6. Web Material (D = Polyester or N = Nylon) |
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| Example:
EE1801D |
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| Eye
And Eye Slings (Flat or Twisted)** |
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*Contact
Us For Special Lengths* |
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Click the button of the item you wish to purchase. Contact us for special lengths
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**Part No. |
Web
Width
(in.) |
Rated
Capacity* (lbs.) |
Prices |
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Vertical |
Choker |
V.
Basket |
3' |
4' |
6' |
8' |
One
Ply |
EE1801DF
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1 |
1,600 |
1,250 |
3,200 |
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EE1802DF
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2 |
3,200 |
2,500 |
6,400 |
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EE1803DF
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3 |
4,800 |
3,800 |
9,600 |
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EE1804DF
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4 |
6,400 |
5,000 |
12,800 |
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EE1806DF
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6 |
9,600 |
7,700 |
19,200 |
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EE1808DF
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8 |
12,800 |
10,200 |
25,600 |
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EE1810DF
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10 |
16,000 |
12,800 |
32,000 |
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EE1812DF
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12 |
19,200 |
15,400 |
38,400 |
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Two
Ply |
EE2801DF
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1 |
3,200 |
2,500 |
6,400 |
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EE2802DF
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2 |
6,400 |
5,000 |
12,800 |
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EE2803DF
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3 |
8,600 |
6,900 |
17,200 |
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EE2804DF
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4 |
11,500 |
9,200 |
23,000 |
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EE2806DF
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6 |
16,300 |
13,000 |
32,600 |
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EE2808DF
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8 |
19,200 |
15,400 |
38,400 |
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EE2810DF
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10 |
22,400 |
17,900 |
44,800 |
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EE2812DF
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12 |
26,900 |
21,500 |
53,800 |
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Three
Ply |
EE3801DF
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1 |
4,100 |
3,300 |
8,200 |
N/A
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EE3802DF
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2 |
8,300 |
6,600 |
16,600 |
N/A
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EE3803DF
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3 |
12,500 |
10,000 |
25,000 |
N/A
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N/A
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EE3804DF
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4 |
16,000 |
12,800 |
32,000 |
N/A
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N/A
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EE3806DF
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6 |
23,000 |
18,400 |
46,000 |
N/A
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N/A
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EE3808DF
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8 |
30,700 |
24,500 |
61,400 |
N/A
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N/A
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N/A
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EE3810DF
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10 |
36,800 |
29,400 |
73,600 |
N/A
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N/A
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N/A
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EE3812DF
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12 |
44,000 |
35,200 |
88,000 |
N/A
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N/A
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N/A
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N/A
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Four
Ply |
EE4801DF
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1 |
5,000 |
4,000 |
10,000 |
N/A
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EE4802DF
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2 |
10,000 |
8,000 |
20,000 |
N/A
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EE4803DF
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3 |
14,900 |
11,900 |
29,800 |
N/A
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N/A
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EE4804DF
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4 |
19,800 |
15,800 |
39,600 |
N/A
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N/A
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EE4806DF
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6 |
29,800 |
23,800 |
59,600 |
N/A
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N/A
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EE4808DF
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8 |
39,700 |
31,700 |
79,400 |
N/A
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N/A
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N/A
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EE4810DF
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10 |
49,600 |
39,600 |
99,200 |
N/A
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N/A
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N/A
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EE4812DF
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12 |
59,500 |
47,600 |
119,000 |
N/A
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N/A
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N/A
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N/A
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| **Replace
the F with a T for Twisted Eyes (Type 4). |
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Replace the "D" with an "N" to order nylon. |
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| Eyes
on Type 3 and Type 4 slings are tapered at 3" and wider,
unless otherwise specified. |
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Do
not exceed rated capacities. Sling tension increases as the
angle from horizontal decreases.
Slings should not be used at angles of less than 30°. Refer
to the Effect of Angle chart at the
bottom of this page. Always protect synthetic slings from being
cut by corners and edges.
See the Sling Protection section below. |
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Sling
Width
(in.) |
Plies
of Webbing
(in.) |
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1 |
2 |
3 |
4 |
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1 |
8 1/2 |
8 1/2 |
10 |
10 |
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2 |
10 |
10 |
12 |
12 |
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3 |
11 |
11 |
14 |
14 |
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4 |
12 |
12 |
16 |
16 |
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5 |
14 |
14 |
18 |
18 |
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6 |
16 |
16 |
18 |
18 |
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8 |
20 |
20 |
24 |
24 |
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10 |
24 |
24 |
24 |
24 |
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12 |
24 |
24 |
24 |
24 |
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| Eye
Length (Applies to
all Web Slings) |
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WEB
SLING INFORMATION
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| Sling
Length Tolerance for Web Slings |
Anti-Abrasion
Treatment |
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Type |
Tolerance
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| 1 Ply |
1.5"
+ 1.5% of sling length |
| 2 Ply |
2.0"
+ 2% of sling length |
| 3 &
4 Ply |
3.0"
+ 3% of sling length |
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We
recommend that web slings be manufactured from
abrasion resistant latex treated webbing. Treatment is
standard on both nylon and polyester web slings.
Natural, untreated webbing is available upon request. |
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Note:
Heavy duty treatments are available as a
supplemental process for greater protection. |
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For web sling widths wider than 6", add 1/2" to these
values.
For tighter tolerance or matched set length requirements,
please consult with Customer Service. |
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Elasticity
- The stretch characteristics of web slings
depends on the type of yarn and the web finish.
Approximate stretch at RATED SLING CAPACITY is: |
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| Tuff-Tag
and Warning Sheet |
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NYLON |
POLYESTER |
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Treated |
10% |
Treated |
7% |
| Untreated |
6% |
Untreated |
3% |
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A
Warning Sheet is
included with every web
sling order. The sheet lists
inspection information
and operating practices
applying to synthetic web
slings. |
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OSHA
requires all web slings to show rated capacities
and type of material. The Lift-All Tuff-Tag is made from
an abrasion resistant polymer that will remain legible far
longer than any leather or vinyl tags. In fact, a Tuff-Tag
will consistently outlast the useful life of a sling. |
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Tuflex
is an Alternative...
For three and four ply slings
wider then 6", Tuflex Rounslings should
be seriously considered.
Tuflex offers increased flexibility, ease of
use and lower cost.
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Sling
Protection
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CUT
AND WEAR PROTECTION
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| Selection
of Sling Protection Products |
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Sling
protection products need to be used in applications where sling
damage may occur. Cutting of synthetic slings during use is
the number
one cause of sling accidents. A variety of factors influence
sling
protection performance. Since no material is fully cut proof,
a qualified
person must select materials and methods that adequately protect
slings from edges or surfaces. We can assist customers with
their
product selections. |
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| Cut
Protection versus Wear Protection |
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Our
sling protection products are divided into two categories, Cut
Protection and Wear Protection. Cut Protection
Products are designed to improve workplace safety. When placed
between slings and edges, cut protection products
act as a buffer to prevent sling cutting and to reduce bearing
pressure levels at contact areas. Wear protection
products serve to extend sling life by reducing abrasive wear
and prevent marring of the load surfaces.
The following table provides comparative sling protection performance
for standard products. |
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Performance
Rating: The bar graphs shown above reflect the comparative
performance of Our Cut Protection
products against commonly used loose and sewn-on types of Wear
Protection products.
Test Lift Qualification: To validate the suitability
of sling protection products for each application, always
complete one or more test lifts in a non-consequence manner.
Technical Bulletin MS-10 available for additional information. |
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| EFFECT
OF SLING ANGLE |
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Using
slings at an angle can become deadly if that angle is
not taken into consideration when selecting the sling to
be used. The tension on each leg of the sling is increased as
the angle of lift, from horizontal, decreases. It is most
desirable for a sling to have a larger angle of lift, approaching
90°. Lifts with angles of less than 30° from horizontal
are not recommended. If you can measure the angle of lift or
the length and height of the sling as rigged, you can
determine the properly rated sling for your lift. The Increased
Tension method provides the increased tension as a
function of the sling angle. Alternatively, the sling Reduced
Capacity method may be used to determine reduced lift
capacity for any angle. |
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INCREASED
TENSION
Determine capacity
of sling needed
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REDUCED
CAPACITY
Calculate rating of each
sling
rigged at this angle
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Determine the load weight (LW). |
1.
Calculate the reduction factor (RF). |
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a.
Using the angle from horizontal,
read across the Angle Chart to
the corresponding number of the
Reduction Factor column. |
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Calculate the Tension Factor [TF]. |
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a.
Determine the sling angle as mea-
sured from the horizontal, and the
corresponding tension factor (TF)
from the effect of angle chart. |
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b.
Divide sling height* (H) by sling
length* (L). |
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b.
Length* (L) divided by height*
(H) |
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2.
Reduction factor (RF) x the sling’s
rated capacity for the type hitch that
will be used = sling’s reduced rating. |
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3.
Determine the share of the load
applied to each sling leg (LW). |
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4.
Multiply (LW) by (TF) to determine
the sling leg tension. The capacity of
the selected sling or sling leg must
meet the calculated tension value. |
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*Measured
from a common horizontal
plane to the hoisting hook. |
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*Measured
from a common horizontal plane
to the hoisting hook. |
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Effect
of Angle Chart
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Tension
Factor (TF) |
Angle From
Horizontal |
Reduction
Factor (RF) |
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1.000 |
90º |
1.000 |
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1.004 |
85º |
0.996 |
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1.015 |
80º |
0.985 |
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1.035 |
75º |
0.966 |
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1.064 |
70º |
0.940 |
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1.104 |
65º |
0.906 |
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1.155 |
60º |
0.866 |
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1.221 |
55º |
0.819 |
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1.305 |
50º |
0.766 |
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1.414 |
45º |
0.707 |
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1.555 |
40º |
0.643 |
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1.742 |
35º |
0.574 |
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2.000 |
30º |
0.500 |
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Example: |
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Vertical
Choker rating of each sling:
6,000 lbs.
Measured Length (L) = 6 ft.
Measured Height (H) = 4 ft.
Reduction Factor (RF) = 4 (H) ÷ 6 (L) = .667 |
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| Example: |
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Load
weight = 1,000 lbs.
Rigging - 2 slings in vertical hitch
Lifting Weight (LW) per sling = 500 lbs.
Measured Length (L) = 10 ft.
Measured Height (H) = 5 ft.
Tension Factor (TF) = 10 (L) ÷ 5 (H) = 2.0
Minimum Vertical Rated Capacity required
for this lift = 500 (LW) x 2.0 (TF) = 1000 lbs.
per sling |
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Sling
capacity decreases as the angle
from horizontal decreases. Sling angles
of less than 30° are not recommended. |
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Reduced
sling rating in this configuration
= .667 |
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(RF)
x 6,000 lbs. = 4,000 lbs. of lifting
capacity per sling |
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Webmaster 1600
Slings, Lifting Slings, Sling, Nylon Slings, Lift-All, Nylon
and Polyester Slings, Industrial Standard
Heavy Duty Sling, Synthetic Web Slings, Serial Numbered Identification,
Triangles and Chokers, Eye and Eye Slings,
Flat Eye, Twisted Eye, and Endless Slings from your source
for material handling equipment.
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