Endless Round Slings for Heavy Lifting

Name: Endless Round Slings
Brand: liftrue
SKU: endless-round-slings

KEY FEATURES

Flexible endless round sling with a continuous-loop polyester body — wear can be rotated around the loop in repetitive basket and choker work.

● High Strength-to-Weight Ratio

High-tenacity polyester provides high strength with low sling weight, supporting easier handling and lower transport weight than comparable steel or chain solutions. The controlled elongation holds the load steady and absorbs shock from dynamic lifts, reducing peak forces on the sling and the load.

● Corrosion & Weather Resistance

Polyester does not rust or corrode, and it resists UV and moisture better than wire-based rigging. This makes it a practical choice for outdoor, marine and washdown duty.

● Flexible Round Body

The soft round construction conforms closely to curved and irregular load surfaces and spreads contact pressure, with no stitch-line pressure points to mark finished surfaces.

● Wear Distribution Around the Loop

The continuous loop can be rotated between lifts to distribute wear around the sling body — extending service life in repetitive basket and choker work. Rotation does not replace inspection or retirement requirements.

● 1,200+ t/y · OEM / ODM · Standard sizes 3–7 days · Sample orders welcome

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SELECTION GUIDE

Which Sling Fits Your Lift?

Your Situation	Best Choice	Why & What to Specify
Step 1 - Material
General-duty lifting between -40 °C and +100 °C - factory, warehouse, precast yard	Polyester sling	Will not rust, and protects finished surfaces. The default choice for most industrial lifts.
Sustained heat above +100 °C, or sharp edges that cannot be padded	Steel wire rope sling	Polyester is rated -40 °C to +100 °C and cuts far more easily than steel. Above that range, or where edges stay sharp, specify wire rope.
Weight-critical or offshore lifts where rigger handling dominates	HMPE sling	About 1/8 the weight of a steel wire rope sling at equal breaking strength - see our HMPE slings for offshore and wind work.
Step 2 - Sling Type
Delicate, polished or irregular loads - castings, mouldings, finished assemblies	Round sling	The round body spreads contact pressure and conforms to shape, with no stitch-line pressure points to mark the load.
Flat, angular or uniform loads - steel plate, pipe bundles, precast units	Webbing sling	The flat face seats squarely and resists rolling, and damage is visible on both faces at inspection.
Tight clearance between the load and the hook	Webbing sling	Flat webbing needs less vertical space than a round sling body of the same capacity.
Step 3 - Construction
Direct connection to hooks, shackles or master links	Eye-and-eye	Reinforced eyes attach straight to hardware with no extra fittings - the usual choice for planned, repeatable lifts.
Basket or choker hitches repeated on the same load type	Endless	Rotate the loop between lifts to spread wear around the full circumference; one sling covers vertical, basket and choker hitches.

STANDARD SIZES

Vertical(kg)	Choker(kg)	Vertical Basket(kg)	Approx. Width(mm)	Approx. Thickness(mm)	Min Length(m)	Weight (7:1)(kg/m)
1,000	800	2,000	40	6	0.5	0.35
2,000	1,600	4,000	50	7	0.5	0.52
3,000	2,400	6,000	60	8	0.5	0.74
4,000	3,200	8,000	70	9	0.5	0.91
5,000	4,000	10,000	75	11	0.5	1.29
6,000	4,800	12,000	80	12	1.0	1.39
8,000	6,400	16,000	90	13	1.0	1.75
10,000	8,000	20,000	100	15	2.0	2.28
12,000	9,600	24,000	110	16	2.0	2.87
15,000	12,000	30,000	125	18	2.0	3.47
20,000	16,000	40,000	150	20	2.5	5.44
25,000	20,000	50,000	180	24	2.5	6.82
30,000	24,000	60,000	200	32	2.5	10.8
40,000	32,000	80,000	200	40	2.5	14.2
50,000	40,000	100,000	220	45	2.5	16.3
60,000	48,000	120,000	240	65	4.0	20.2
80,000	64,000	160,000	260	70	4.0	25.9
100,000	80,000	200,000	290	80	4.0	30.3
200,000	160,000	400,000	450	120	5.0	74.6

1. Dimensions refer to the standard sling body; the optional additional protective sleeve increases outer dimensions slightly.
2. Longer lengths and higher capacities are engineered to order; capacities above the standard range are project-engineered and subject to technical review and testing, not an EN-standard stock range.
3. Use the kg / lb toggle above the table to switch units.

CUSTOM SIZING & OPTIONS

Parameter	Custom Range
Material	100% high tenacity polyester
WLL Range	1 t – 1,000 t; engineered per lift plan
Length (EWL)	Custom, up to 200 m
Design Factor	7:1 (EN 1492-2 series) · 6:1 engineered to customer specification
Protective Sleeve	Double-layer polyester sleeve, full length or wear zones, contrasting colors for inspection
Design & Compliance Basis	EN 1492-2 covers the 7:1 series; other coefficients made to agreed specification. Australian supply is referenced to AS 4497:2018 (round slings — synthetic fibre), which also covers HMPE
Identification & Traceability	Color-coded per EN 1492-2, durable tags with batch tracing, private labeling available
Documentation & Marking	CE marked to Directive 2006/42/EC applies to the 7:1 series. Other configurations supplied without CE marking, with type-test reports. Batch MTC, test reports and DoC supplied with each shipment.
Packaging	Each sling folded and packed in a PE bag, then carton-boxed and palletized; wooden cases for heavy or multi-leg sets; custom packaging and OEM labeling on request

FAQ

Frequently Asked Questions

Questions about samples, MOQ, or shipping? Ask us directly →

EN 1492-1 covers flat webbing slings — slings made from one or more layers of woven polyester webbing in a flat band. EN 1492-2 covers round slings — a continuous load-bearing core of parallel yarn enclosed in a seamless tubular sleeve. Both are synthetic slings, but round slings have a softer, more flexible body that conforms to irregular or delicate loads and protects finished surfaces, while flat webbing slings provide a stable, wide bearing surface ideal for balanced basket or choker hitches. Pick round slings for delicate or oddly shaped loads and flat webbing slings when you want a flat, wide contact area. Custom or project-engineered configurations are subject to separate technical review.

Choose endless when the sling wraps the load in basket or choker hitches and you want to rotate wear around the loop between lifts. Choose eye-and-eye when direct connection to hooks or shackles is the primary requirement.

Endless round slings support vertical, basket, and choker hitches from a single sling. The continuous loop provides even load distribution and can be rotated to distribute wear across the body.

EN 1492-2 limits the effective working length (EWL) to a deviation of no more than ±2 % of the nominal length. It is measured with the sling laid flat, pulled taut by hand tension, using a steel tape or rule graduated in 1 mm increments.

Each WLL range is assigned a standard color, allowing riggers to identify capacity instantly without checking paperwork. This reduces rigging errors and speeds up pre-lift checks.

Yes. We can supply batch Material Test Certificates (MTC) and proof-test documentation on request, supporting project quality files and third-party inspections.

Sleeves can be fitted along the full length or only in wear zones to resist abrasion, cutting, and UV exposure. We also offer sleeves in contrasting colors for easy wear-point inspection.

Check the entire loop for cuts, abrasion, broken stitching, or deformation. Ensure the WLL label and standard marking are legible. Withdraw immediately if you see cuts, abrasion, chemical damage, heat marks, missing labels, or any structural deformation.

SAFETY

Endless Round Slings - Safety & Usage Guidelines

Rotate to Spread Wear

Rotate the endless loop a quarter turn between lifts so wear spreads across the full circumference — this continuous-loop design is the sling's primary wear-spreading advantage.

Inspect the Full Loop

Inspect the entire loop, not just the visible section — damage frequently hides on the face resting against the load.

Never Exceed WLL

Never exceed the WLL on the identification tag. Endless round slings use the same EN 1492-2 color-coding as eye-and-eye rounds for instant capacity recognition.

Apply Hitch Factors

Apply the correct hitch factor: 1.0 × WLL vertical, 0.8 × WLL choker, up to 2.0 × WLL basket — the 2.0 figure applies only when both legs run parallel. Recalculate the effective WLL for the hitch and angle actually used.

Protect the Cover

Protect the cover from sharp edges; a choker hitch concentrates stress where the sling passes through itself, so pad any edge the loop crosses.

Never Tie Knots

Never tie knots. The continuous construction means a knot crushes the load-bearing core and is unnecessary for any hitch configuration.

Respect Temperature Range

Operate only within −40 °C to +100 °C for polyester. Keep the sling clear of welding arcs and molten-metal splatter at all times.

Retire on Damage

Retire immediately on cuts or abrasion exposing core yarn, chemical attack, heat marks, missing tags, or cover slippage. Always inspect the full loop, including the load-facing side.