WORKING LOAD LIMIT CHART This chart applies to general purpose chain slings made of Grade 80 and Grade 100 lifting chain and components manufactured to AS3775.2:2014 or equivalent international standards, and flat web and endless round slings manufactured to AS1353.2-1997 and AS4497:2018 or equivalent international standards. For ratings of special purpose slings consult a Steel & Tube lifting specialist.
The Uniform Method for Rating GRADE 80 Chain Slings
Flat Web Lifting Slings & Endless Round Slings
This info is based on the lowest allowable ratings for Grade 80 Chain Slings. Ratings can be higher based on actual manufacturer WLL.
Note: Some web slings are manufactured using white (loomstate) webbing. In such cases, refer to manufacturer specifications and product label.
1 leg
2 leg
Vertical
Choke
Basket Parallel
Basket @ 30º
Basket @ 60º
Basket @ 90º
2 Leg Sling @ 0º to 90º
3-4 Leg Sling @ 0º to 90º
W.L.L. Kg
W.L.L. Kg
W.L.L. Kg
W.L.L. Kg
W.L.L. Kg
W.L.L. Kg
W.L.L. Kg
W.L.L. Kg
W.L.L. Kg
500 1,000 2,000 3,000 4,000 5,000 6,000 8,000 10,000 12,000
500 1,000 2,000 3,000 4,000 5,000 6,000 8,000 10,000 12,000
400 800 1,600 2,400 3,200 4,000 4,800 6,400 8,000 9,600
1,000 2,000 4,000 6,000 8,000 10,000 12,000 16,000 20,000 24,000
950 1,900 3,800 5,700 7,600 9,500 11,400 15,200 19,000 22,800
850 1,700 3,400 5,100 6,800 8,500 10,200 13,600 17,000 20,400
700 1,400 2,800 4,200 5,600 7,000 8,400 11,200 14,000 16,800
700 1,400 2,800 4,200 5,600 7,000 8,400 11,200 14,000 16,800
1,050 2,100 4,200 6,300 8,400 10,500 12,600 16,800 21,000 25,200
3 & 4 leg – Same ratings
Lifting Mode Lifting Mode
Chain 0 (mm)
Factor 1 0º
Factor 1.7 at 60º
Factor 1.4 at 90º
Factor 1.4 at 120º
Factor 2.6 at 60º
Factor 2.1 at 90º
Factor 1.5 at 120º
6.00 7.00 8.00 10.00 13.00 16.00 19.00 20.00 22.00 26.00 32.00
1.12 1.50 2.00 3.15 5.30 8.00 11.20 12.50 15.00 21.20 31.50
1.90 2.55 3.40 5.35 9.00 13.60 19.00 21.25 25.50 36.00 53.50
1.60 2.12 2.80 4.25 7.50 11.20 16.00 17.00 21.20 30.00 45.00
1.12 1.50 2.00 3.15 5.30 8.00 11.20 12.50 15.00 21.20 31.50
2.90 3.90 5.20 8.20 13.80 20.80 29.00 32.50 39.00 55.10 81.90
2.36 3.15 4.25 6.70 11.20 17.00 23.60 26.50 31.50 45.00 67.00
1.70 2.24 3.00 4.75 8.00 11.80 17.00 19.00 22.40 31.50 47.50
If chain is choked WLL must be derated by 20%
Ratings are in tonnes unless otherwise specified.
The Uniform Method for Rating GRADE 100 Chain Slings This info is based on the lowest allowable ratings for Grade 100 Chain Slings. Ratings can be higher based on actual manufacturer WLL. 1 leg
2 leg
3 & 4 leg – Same ratings
Lifting Mode
Grade 10
Factor 1 0º
Factor 1.7 at 60º
Factor 1.4 at 90º
Factor 1 at 120º
Factor 2.6 at 60º
Factor 2.1 at 90º
Factor 1.5 at 120º
6mm 7mm 8mm 10mm 13mm 16mm 19mm 20mm 22mm
1.40 1.90 2.50 4.00 6.70 10.00 14.00 16.00 19.00
2.38 3.23 4.25 6.80 11.39 17.00 23.80 27.20 32.30
1.96 2.66 3.50 5.60 9.38 14.00 19.60 22.40 26.60
1.40 1.90 2.50 4.00 6.70 10.00 14.00 16.00 19.00
3.64 4.94 6.50 10.40 17.42 26.00 36.40 40.60 49.40
2.94 3.99 5.25 8.40 14.07 21.00 29.40 33.60 39.90
2.10 2.85 3.75 6.00 10.05 15.00 21.00 24.00 28.50
Ratings are in tonnes unless otherwise specified.
If chain is choked WLL must be derated by 20%
NOTE: Trigonometric Load Method is not a standard lifting practice but can be used for specialised lifts. Consult your Steel & Tube lifting specialist.
USE OF CHAIN SLINGS:
BASIC RULES FOR SAFE LIFTING:
• Keep a register of all slings in use • Never lift with a twisted chain • Chain slings should be shortened with a shortening hook, never by knotting • Protect the chain against sharp edges by sufficient padding • Never point load a hook – the load should always seat correctly in the bowl of the hook • Always use the correct sized sling for the load, allowing for the included angle and the possibility of unequal loading • The master link should always be able to move freely on the crane hook • Avoid shock loading at all times • Avoid severe sling angles, and use protection over sharp or rough edges
• Always know the weight of the load you are going to lift • Select the correct sling or slings for the lift • Avoid severe sling angles, and use protection over sharp or rough edges • Make sure area and destination for load are clear before lifting • Always use dunnage so that slings are removed without damage • Report any damage • Store slings in clean dry areas correctly.
MAINTENANCE OF CHAIN SLINGS: • Chains should be inspected prior to use. • Periodic thorough examination must be carried out at least every 12 months or more frequently according to statutory regulations, type and frequency of use. • Chains with bent links or with cracks or gouges in the link should be replaced, as should deformed components such as bent master links, opened up hooks and any fitting showing signs of damage.
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INSPECTION & CARE OF SYNTHETIC LIFTING SLINGS: • Inspect slings for any damage before use • Protect slings from sharp or abrasive edges • Do not use slings above their W.L.L. • Position load on dunnage to ensure easy removal of slings • Do not twist or knot slings to shorten • Do not use when temperatures exceed 90°C • Do not snatch or shock load slings when lifting • Check with manufacturer before using slings in or near Alkalis and Acids.