Nylon & Polyester Web Slings | Hercules SLR | Securing, Lifting & Rigging

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 45^o. At any sling angle under 30^o 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 90^o basket hitch
If the sling angle is 50^o, 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 50^o

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 45^⁰ angle and 500 lbs at a 30^⁰angle.

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
Length (ft)	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
Length (ft)	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

Can be installed on both sides.

Type 2 – Tube 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 Endless
	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.