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You buy chain slings to work, not to sit on a rack. The right choice lifts every load smoothly, passes audits with zero drama, and stays in service far longer than its price tag suggests. The wrong choice snaps hooks, rusts weld toes, and stalls production in the worst moment. This guide treats “chain slings for sale” as a technical decision, not a shopping ad. You will see how grades G80, G100, and stainless differ, how leg count changes safe working load, and which finish beats your site’s worst threat. Read on, compare tables, and lock in the sling your crew really needs.
Grade | Yield MPa | Proof Load | Safety Factor | Best Field | Key Hook Option |
G80 | 640 | 2.5 × WLL | 4 : 1 | Construction, rental yards | Clevis grab, eye sling |
G100 | 980 | 2.5 × WLL | 4 : 1 | Production cranes, tight headroom | Self-locking, foundry |
Stainless G80 | 640 | 2.5 × WLL | 4 : 1 | Food, acid plant, offshore | Stainless latch |
Choose grade by environment and headroom. G100 lifts roughly 25 % more at the same diameter, freeing hook height. Stainless beats corrosion and sanitiser yet costs extra.
Sling Legs | Common Use | Angle Factor @60° | Stable Load Types |
1-Leg | Pumps, motors | 1.00 | Tight hook spacing |
2-Leg | Beam picks | 1.15 | Long, even loads |
3-Leg | Plate, molds | 1.15 | Uneven centres |
4-Leg | Frames, tanks | 1.15 | Complex shapes |
More legs share weight yet spike line tension if angles shrink. Keep legs above 45° when possible.
Ø mm | G80 WLL 1-Leg kg | G100 WLL 1-Leg kg | 4-Leg WLL @60° G80 kg | 4-Leg WLL @60° G100 kg | Chain kg / m | Min Hook Throat mm |
8 | 2 000 | 2 500 | 6 880 | 8 600 | 1.4 | 13 |
10 | 3 150 | 4 000 | 10 850 | 13 800 | 2.2 | 17 |
13 | 5 300 | 6 700 | 18 270 | 23 230 | 3.8 | 22 |
16 | 8 000 | 10 000 | 27 600 | 34 500 | 5.7 | 28 |
20 | 12 500 | 16 000 | 43 100 | 55 200 | 9.0 | 34 |
Topone proofs every sling leg at 2.5 × WLL and embosses “8-TPN” or “10-TPN” plus heat code on each chain segment.
Finish | Salt-Spray Life h | Temp Range °C | Added Mass % | Ideal Industry |
Black paint | 72 | −40→200 | 0 | Indoor machine shop |
Mn-phosphate | 480 | −20→180 | 0 | Concrete plant, quarry |
70 µm hot-dip zinc | 1 000 | −10→120 | 3 | Port, railyard |
Bare stainless | Unlimited | −196→200 | 0 | Food, chemical, marine |
Black looks cheap today, zinc survives years outdoors, stainless never rusts.
Industry | Typical Threat | Recommended Sling | Why It Fits |
Building site | Dust, impact | G80 2-leg, black paint | Rugged, cost-smart, easy resupply |
Fabrication shop | Tight headroom | G100 3-leg, eye hooks | Smaller chain frees crane height |
Food plant | Steam, brine | Stainless G80 1-leg, latch hooks | Non-magnetic, cleans fast |
Offshore deck | Salt spray | G80 4-leg, hot-dip zinc | Lower price than stainless, rust delay |
Steel mill | 200 °C heat | G80 1-leg, foundry hooks | Alloy keeps strength, wide jaw grabs trunnions |
Wind tower yard | Long frames | G100 4-leg, self-locking | High WLL in slim chain, auto-closing hooks |
G100 legs trim weight while bridle angle stays within 60 °.
1. List the heaviest daily load; ignore rare peaks.
2. Add rigging mass plus 10 % buffer.
3. Select leg count that balances stability and hook space.
4. Multiply by angle factor (1.15 default at 60° for 2–4 legs).
5. Pick diameter whose table WLL beats the number.
6. Match finish and hook style to site threat and grade.
Complete the six moves in minutes and you never overspend on steel or miss weight targets.
Gauge mid-link diameter monthly—scrap at 10 % wear.
Measure five-link pitch—retire at 3 % stretch.
Oil links lightly after wash-down; stop fretting.
Store slings on racks, not pallets; puddles pit weld toes.
Swap legs between hooks on multi-leg slings to even wear.
Good habits push G80 to four years, G100 to three, stainless beyond five in briny air.
Stainless G80 sling stays bright after endless CIP cycles.
Use the grade table, diameter matrix, and industry chart to grab the chain sling that lifts heavier, lasts longer, and fits your site without waste— dive into full Topone stock now at lifting-chain.com.