Heavy lifts punish weak points, yet heavy rigging drains crane capacity and crew endurance. Topone Grade 100 chains destroy the compromise. Cr-Ni-Mo alloy steel and 980 MPa yield realize about 25 % more capacity than Grade 80 while cutting sling weight by up to 20 %. This guide pulls the authentic data from our product sheet, shows a concise size matrix, explains a six-step selection routine, and highlights coating options that survive salt, grit, and cold. Read on, grab the numbers, and lock in a chain that lifts more but weighs less. (lifting-chain.com)

Size & Capacity Matrix – Factory Data

Values replicated from Topone's official datasheet. (www.lifting-chain.com/pas-1061-grade-100-chain.html)

 https://www.lifting-chain.com/pas-1061-grade-100-chain.html

One-Minute Sizing Flow

Note the heaviest routine load.

Add chain, hook, and shackle weight plus 10 % contingency.

Multiply by the sling-angle factor from EN 818-4 (e.g., 1.4 @ 45°, 2.1 @ 60° four-leg).

Select the first diameter whose WLL ≥ result in the matrix.

Check link outside width against hook throat and available head-room. (lifting-chain.com)

Record chain ID and heat code (embossed every ≤ 10 m) for traceability.

Follow these six steps and meet the 4 : 1 safety margin without oversizing.

Finish Options & Service Life

Black lacquer—economic indoors.

Phosphate—480 h neutral salt-spray performance for construction yards.

Hot-dip zinc—70 µm coating, ≥ 1 000 h ISO 9227 durability; perfect for marine decks. Surface option varies weight by < 3 %, far less than moving up a diameter. (lifting-chain.com)

Field Care in Three Quick Checks

Clean and oil after gritty shifts, then:

Diameter—retire at 10 % wear.

Five-link pitch—scrap at 3 % stretch.

Crack scan—bright light and 10× lens finds early defects.

Routine takes two minutes but saves catastrophic failure.

Conclusion

Stop dragging excess steel and begin lifting smarter—specify Topone Grade 100 chains and enjoy the strength-to-weight benefit on every hook-up. Contact us for more information!