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An adjustable chain sling is one of the most versatile and flexible lifting solutions in modern rigging. Unlike fixed-length chain slings, an adjustable chain sling allows operators to change the working length of each chain leg using a shortening clutch or adjust-a-link system. This improves control, load balance, and safety during lifting operations.
At TOPONE CHAIN, we manufacture premium-grade G80 and G100 adjustable lifting chains engineered for heavy-duty performance across construction, machinery installation, logistics, shipbuilding, and industrial material handling. Our slings follow global standards, including EN 818-4, ASME B30.9, and are proof-load tested for maximum safety.
An adjustable chain sling is a chain lifting assembly that allows modification of chain leg length through shortening clutches (adjusters).
This system is also known as an:
adjust-a-link chain sling
adjustable lifting chain sling
variable-length chain sling
Typical configuration includes:
Master link for crane hook attachment
1–4 chain legs made of alloy steel
Shortening clutch to adjust chain length
Hooks or shackles for load connection
Identification tag for WLL & certification
This design makes adjustable chain slings ideal for irregular loads, uneven lifting points, and multi-angle rigging.

Shortening clutches allow operators to instantly adjust the chain length for:
height differences
angled lifting
balancing odd-shaped loads
Manufactured from quenched & tempered alloy steel for superior:
tensile strength
fatigue resistance
durability under extreme load
Choose the structure that best fits your lifting environment:
Single leg adjustable sling
2-leg adjustable chain sling
3-leg adjustable lifting chains
4 leg adjustable chain sling (for maximum stability)
Each adjustable chain sling includes:
Proof-load test certificate
Batch traceability number
WLL tag per EN 818 standard
TOPONE CHAIN offers:
custom chain lengths
personalized hooks
branded tags
special coatings (galvanized, painted, powder-coated)
Chain Diameter | Grade | WLL (0–45°) | Adjustment System | Applications |
6–8 mm | G80 | 1.12–2.0 T | Standard shortening clutch | Light rigging, workshops |
10–13 mm | G80 / G100 | 3.15–5.3 T | Adjust-a-link system | Construction, steel lifting |
16 mm | G100 | 8.0 T | Heavy-duty adjuster | Machinery & equipment installation |
20 mm | G100 | 12.5 T | Industrial adjustable system | Offshore, shipyard, mining |
Custom WLL and multi-leg designs available upon request.
Adjustable lifting chains are used in environments where precision and load balancing are critical:
Construction steel structure lifting
Machinery installation & alignment
Container lifting & logistics
Shipyard equipment rigging
Manufacturing production lines
Heavy steel plate & beam handling
Mining equipment maintenance
An adjustable chain sling reduces downtime, increases lifting accuracy, and improves operator safety in dynamic workplaces.
TOPONE CHAIN is recognized as one of the global top 10 lifting chain manufacturers, producing:
G80 and G100 chain slings
adjustable lifting chains
adjust-a-link chain sling systems
hooks, links, and rigging hardware
With 9 automated lines, strict ISO 9001:2015 quality control, and TÜV/CE certifications, we deliver international-grade rigging solutions trusted worldwide.
Q1: What is the purpose of an adjustable chain sling?
To allow operators to change chain length for balanced lifting and precise rigging.
Q2: Are adjustable lifting chains safe for overhead lifting?
Yes — when manufactured to EN 818 / ASME B30.9 standards and used within WLL limits.
Q3: What is the difference between adjustable and fixed chain slings?
Adjustable slings allow length change; fixed slings do not.
Q4: Do you offer OEM adjustable chain sling production?
Yes, including custom branding, special hooks, and tailor-made assemblies.
The adjustable chain sling is an essential tool for professional lifting, offering unmatched flexibility, strength, and safety.
Whether you need a single-leg adjust-a-link chain sling or a heavy-duty 4-leg adjustable lifting chain assembly, TOPONE CHAIN provides certified products built for demanding environments.
Request a quotation today and upgrade your rigging system with TOPONE adjustable chain slings.