Standard Nylon & Polyester Slings
Every Lift Uses 1 of 3 Basic Hitches
All Hercules SLR slings are marked to show Working Load Limit (WLL) in vertical, choker and basket hitch. All slings have the largest load capacity when used in the basket hitch. Capacity in the vertical hitch is 50% of that in the basket hitch. Capacity in the choker hitch of single leg slings is a maximum of 80% of the vertical rated load.
Effect of Angle Increases
Sling angle is the angle measured between a horizontal line and the sling leg or body. The angle is very important and can have a dramatic effect on the rated capacity of the sling – when this angle decreases, the load on each leg increases. This principle applies whether in a basket hitch or for multi-legged bridle slings. When possible, the sling angle should be more than 45o. At any sling angle under 30o a spreader beam should be used. To determine the slings reduced rating according to a specific sling angle, multiply the sling rating by the appropriate loss factor.
Example:
Assume sling capacity is 2 000 lbs in vertical hitch and 4 000 lbs. in a 90o basket hitch
If the sling angle is 50o, then the loss factor is 0.766
Multiply 4 000 lbs. x 0.766 = 3 100 lbs
3,100 lbs. is the rated capacity in the basket hitch at a sling angle of 50o
Design factor
All working load limits are based on a factor of 5:1
Length of Web Sling
Always measure slings pull to pull when flat as shown. Approximate stretch at rated sling capacity is 10% for nylon and 5% for polyester. Hercules SLR manufactures slings to a tolerance of ±2% for one and two ply slings and ±4% for three and four ply slings. Please specify when ordering if you require matched pairs of slings.
Sling Capacity Decreases as the
Angle from Horizontal Decreases
A sling capable of lifting 1 000 lbs in a 90⁰ vertical basket hitch can only lift 866 lbs at a 60⁰ angle, 707 lbs at a 45⁰ angle and 500 lbs at a 30⁰ angle.
|
Sling Angle Degrees Horizontal |
Loss 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 |
standard nylon & polyester WEB slings
for Use AND Maintenance of Web Slings
DO’s
- Use only properly identified slings
- When lifting in a choker hitch, the angle of the choke should form naturally and not be forced
- The lifting device engaged by a soft eye should be smooth and of such a size that it does not stretch or tear the sewn joint at the throat
- Carry out the lift in such a way that the load is stable when several slings are needed. Distribute the load evenly among the slings and in such a way that the slings hang nearly vertical
- Store slings away from sunlight and other sources of ultraviolet radiation
- Inspect the sling before each lift. Look for surface chafe, cuts in the webbing, damage to the edges or chemical attack indicated by softening of the material and deterioration of the seams
DO NOT’s
- Do not use damaged slings
- Do not use nylon slings in acid conditions
- Do not use polyester slings in alkaline conditions
- Do not expose nylon or polyester slings to temperatures above 80° celsius
- Do not make knots in sling
- Do not lift with a twisted sling
- Do not use web slings for loads with sharp edges
OS&H mandates that:
“ Each day before being used, the sling and all fastenings and attachments shall be inspected for damage or defects by a competent person designated by the employer. Additional inspections shall be performed during sling
use, where service conditions warrant.”
TYPE 1 (TC)
TYPE 2 (TT)
TYPE 3 (EE)
TYPE 4 (TC)
TYPE 5 (EN)
TYPE 6 (DE)
Web Sling Classification Code
type 3 eye & eye – 2 ply
|
Length (ft) |
2”, 2-ply |
3”, 2-ply |
4”, 2-ply |
|||
|
Part Number |
Part Number |
Part Number |
||||
|
4 |
EE2902304PY |
EE2903304PY |
EE2904304PY |
|||
|
6 |
EE2902306PY |
EE2903306PY |
EE2904306PY |
|||
|
8 |
EE2902308PY |
EE2903308PY |
EE2904308PY |
|||
|
10 |
EE2902310PY |
EE2903310PY |
EE2904310PY |
|||
|
12 |
EE2902312PY |
EE2903312PY |
EE2904312PY |
|||
|
15 |
EE2902315PY |
EE2903315PY |
EE2904315PY |
|||
|
16 |
EE2902316PY |
EE2903316PY |
EE2904316PY |
|||
|
18 |
EE2902318PY |
EE2903318PY |
EE2904318PY |
|||
|
20 |
EE2902320PY |
EE2903320PY |
EE2904320PY |
|||
|
25 |
EE2902325PY |
EE2903325PY |
EE2904325PY |
|||
|
Type 3 (lay flat eye) – The eye is formed by folding the webbing back and sewing it against the sling body. |
||||||
type 4 eye & eye – 2 ply
|
Length (ft) |
2”, 2-ply |
3”, 2-ply |
4”, 2-ply |
|||
|
Part Number |
Part Number |
Part Number |
||||
|
4 |
EE2902404PY |
EE2903404PY |
EE2904404PY |
|||
|
6 |
EE2902406PY |
EE2903406PY |
EE2904406PY |
|||
|
8 |
EE2902408PY |
EE2903408PY |
EE2904408PY |
|||
|
10 |
EE2902410PY |
EE2903410PY |
EE2904410PY |
|||
|
12 |
EE2902412PY |
EE2903412PY |
EE2904412PY |
|||
|
15 |
EE2902415PY |
EE2903415PY |
EE2904415PY |
|||
|
16 |
EE2902416PY |
EE2903416PY |
EE2904416PY |
|||
|
18 |
EE2902418PY |
EE2903418PY |
EE2904418PY |
|||
|
20 |
EE2902420PY |
EE2903420PY |
EE2904420PY |
|||
|
25 |
EE2902425PY |
EE2903425PY |
EE2904425PY |
|||
|
Type 4 (twisted eye) – The eye is formed by turning the fabric 180° before sewing it to form an eye 90° to the sling body. This allows for easier choking. |
||||||
wear pads
All wear pads are available for round, web and twin path slings in nylon webbing, cordura, leather, rubber or ballistic nylon.
Type 1 – Sewn Type
2 inches wider than a sling, protects both sides and is replaceable.
Type 3 – Edge Type
Protects edges from abrasion and rapid wear.
Type 4 – Sling Eye Reinforcing
May be sewn into Sling Eyes in the bearing surfaces to prolong eye life.
We make custom slings, nylon slings – any slings…
call for pricing!
We also carry:
Type 1 or 2 Triangle – 1 & 2 Ply
Type 3 or 4 Eye & Eye – 3 & 4 Ply
Type 5 Endless – 1 & 2 Ply
Type 6 Reverse Eye – 1 & 2 Ply
|
Synthetic Webbing Slings |
||||||||
|
Working Load Limit (WLL) in pounds, 1 Ply, Class 7 |
||||||||
|
Width (inches) |
Types 1, 2, 3 and 4 Single Leg |
Two-Leg or Single Basket Horizontal Angle |
Type 5 |
|||||
|
Vertical |
Choker |
Vertical Basket |
Vertical |
60° |
45° |
30° |
Vertical |
|
 |
 |
 |
 |
 |
 |
 |
 |
|
|
1 |
1 600 |
1 280 |
3 200 |
3 200 |
2 800 |
2 300 |
1 600 |
3 200 |
|
2 |
3 100 |
2 480 |
6 200 |
6 200 |
5 400 |
4 400 |
3 100 |
6 200 |
|
3 |
4 700 |
3 760 |
9 400 |
9 400 |
8 100 |
6 600 |
4 700 |
9 400 |
|
4 |
6 200 |
4 960 |
12 400 |
12 400 |
10 700 |
8 800 |
6 200 |
12 400 |
|
5 |
7 800 |
6 240 |
15 600 |
15 600 |
13 500 |
11 000 |
7 800 |
15 600 |
|
6 |
9 300 |
7 440 |
18 600 |
18 600 |
16 100 |
13 200 |
9 300 |
18 600 |
|
8 |
11 750 |
9 400 |
21 150 |
21 150 |
18 300 |
15 000 |
11 750 |
21 150 |
|
10 |
14 700 |
11 760 |
26 450 |
26 450 |
22 900 |
18 700 |
14 700 |
26 450 |
|
12 |
17 650 |
14 120 |
31 750 |
31 750 |
27 500 |
22 400 |
17 650 |
31 750 |
|
Working Load Limit (WLL) in pounds, 2 Ply, Class 7 |
||||||||
|
1 |
3 100 |
2 480 |
6 200 |
6 200 |
5 400 |
4 400 |
3 100 |
6 200 |
|
2 |
6 200 |
4 960 |
12 400 |
12 400 |
10 700 |
8 800 |
6 200 |
12 400 |
|
3 |
8 800 |
7 040 |
17 600 |
17 600 |
15 200 |
12 400 |
8 800 |
17 600 |
|
4 |
11 000 |
8 800 |
22 000 |
22 000 |
19 100 |
15 600 |
11 000 |
22 000 |
|
5 |
13 700 |
10 960 |
27 400 |
27 400 |
23 700 |
19 400 |
13 700 |
27 400 |
|
6 |
16 500 |
13 200 |
33 000 |
33 000 |
28 600 |
23 000 |
16 500 |
33 000 |
|
8 |
22 750 |
18 200 |
42 350 |
42 350 |
36 700 |
29 900 |
22 750 |
42 350 |
|
10 |
28 400 |
22 720 |
52 900 |
52 900 |
45 800 |
37 400 |
28 400 |
52 900 |
|
12 |
34 100 |
27 280 |
63 500 |
63 500 |
55 000 |
44 900 |
34 100 |
63 500 |
|
Working Load Limit (WLL) in pounds, 4 Ply, Class 7 |
||||||||
|
1 |
5 500 |
4 400 |
11 000 |
11 000 |
9 500 |
7 800 |
5 500 |
11 000 |
|
2 |
11 000 |
8 800 |
22 000 |
22 000 |
19 000 |
15 600 |
11 000 |
22 000 |
|
3 |
16 450 |
13 160 |
32 900 |
32 900 |
28 500 |
23 300 |
16 450 |
32 900 |
|
4 |
20 400 |
16 320 |
40 800 |
40 800 |
35 300 |
28 800 |
20 400 |
40 800 |
|
5 |
25 500 |
20 400 |
51 000 |
51 000 |
44 200 |
36 100 |
25 500 |
51 000 |
|
6 |
30 600 |
24 480 |
61 200 |
61 200 |
53 000 |
43 300 |
30 600 |
61 200 |
|
The rated loads are based on stuffer weave construction webbing with a minimum certified tensile strength of 9 800 lbs per inch of width of webbing. Rated loads for types 3 and 4 slings apply to both tapered and non-tapered eye constructions. Rated loads for type 5 slings are based on non-tapered webbing. For choker hitch, the angle of choke shall be 120° or greater. Design Factor 5 : 1. For type 5 and 6 slings, consult Hercules SLR for rated loads of choker and basket applications. ( As per ASME B30.9-2003 slings ) |
||||||||
Hercules SLR is part of the Hercules Group of Companies which offers a unique portfolio of businesses nationally with locations from coast to coast. Our companies provide an extensive coverage of products and services that support the success of a wide range of business sectors across Canada including the energy, oil & gas, manufacturing, construction, aerospace, infrastructure, utilities, oil and gas, mining and marine industries.
Hercules Group of Companies is comprised of: Hercules SLR, Hercules Machining & Millwright Services, Spartan Industrial Marine, Stellar Industrial Sales and Wire Rope Atlantic.
We have the ability to provide any solution your business or project will need. Call us today for more information. 1-877-461-4876 or email sales@herculesslr.com. Don’t forget to follow us on Facebook, Twitter and LinkedIn for more news and upcoming events.