Sling Co (TOPONE®) runs nine automated lines that forge, weld, and proof-load more than 500 000 high-tensile ring chains every year, exporting to 30 U.S. and European markets. Six product families cover every certified need: Grade 100, Grade 80, Mining (DIN 22252), broad DIN pitch chains, NACM U.S. standards, and ASTM chemistry-controlled slings. Knowing which grade fits your lift saves headroom, rejects corrosion, and slashes downtime. The quick-swap matrix below bundles each family’s strength, environment, finish, and best hook choice so you decide once and lift safely for years.

OneLook Grade Matrix

*Working-load limits follow EN 818-2 factors and Topone test sheets.

How to Read—and Use—the Table

Grade first: decide if you need extra capacity (pick G100), extra hardness (pick Mining), salt/acid immunity (pick Stainless G80, not shown above), or a specific audit trail (pick DIN, NACM, or ASTM).
Diameter second: open the Topone diameter chart, find the first link whose single-leg WLL beats your load after you multiply by the sling-angle factor (1.4 at 45°, 2.1 at 60° for four legs).

Click to view:

G100 Sling Equipment Table

G80 Sling Equipment Table

Hooks and finish last: self-locking hooks autoclose overhead, clevis grabs shorten legs fast, foundry hooks open wide for ladles. Paint works indoors, phosphate beats dust, hot-dip zinc wins outdoors, polished stainless lasts forever in CIP wash-down lines.

Fewer Rules, Stronger Habits

Always gauge wear: scrap when mid-link diameter drops 10 % or five-link pitch grows 3 %.
Keep legs ≥45°: smaller angles double tension and kill WLL.
Oil after wash: even zinc loves a light film; stainless just needs a rinse.
Rack storage only: floors pool water; weld toes rust first.
These four habits push G80 service beyond four years, G100 to three, Mining chains to three in coal, and stainless beyond five in brine.

Finish & Cost Snapshot

Cost per tonne lifted often favours G100 in low headroom or high cycle yards and favours stainless when shutdowns cost more than hardware.

Conclusion

One table, four habits, and a finish choice are all you need to match any lift to the exact Sling Co chain sling grade—browse detailed sheets or request a quote at lifting-chain.com today.